GM47/GM48
Product Photo/Illustration
Contents
1. Introduction............................................................................................................ 13
1.3 Manual Structure ......................................................................................... 13
2. GM47/GM48 Modules........................................................................................... 15
2.1 About the GM47/GM48 Family .................................................................. 15
Voice Calls...................................................................................... 18
SIM Card......................................................................................... 19
2.4 Service and Support ..................................................................................... 19
3. Abbreviations ......................................................................................................... 21
Part 2: Developer’s Kit....................................................................................... 23
1. Introduction............................................................................................................ 25
1.2 Contents of the Kit ....................................................................................... 25
1.3 General Functioning of the Kit .................................................................... 26
2. Using the Developer’s Kit...................................................................................... 29
2.1 Start up Check List....................................................................................... 30
2.2 Developer’s Board Overlay.......................................................................... 31
2.3 Jumpers, Switches and Connectors.............................................................. 32
2.4 System Connector Pin Assignments ............................................................ 36
1. Mechanical Description......................................................................................... 39
1.1 Interface Description.................................................................................... 39
1.2 Physical Dimensions.................................................................................... 40
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2. System Connector Interface ..................................................................................41
2.5 ON/OFF and External Power Signal ............................................................ 46
2.6 Analogue Audio .......................................................................................... 48
2.7 PCM Digital Audio....................................................................................... 52
2.8 Serial Data Interfaces.................................................................................... 55
2.9 SIM Card Related Signals ............................................................................ 59
2.10 Service/Programming................................................................................... 61
2.13 General Purpose Digital I/O Ports................................................................ 62
2.14 General Purpose Analogue I/O Ports............................................................ 63
2
2.15 External I C Serial Control Bus .................................................................. 65
2.16 TX_ON - Burst Transmission....................................................................... 65
2.17 Real Time Clock .......................................................................................... 66
3. Antenna Connector ................................................................................................68
4. Hints for Integrating the Module..........................................................................69
4.1 Safety Advice and Precautions..................................................................... 69
General............................................................................................69
SIM Card .........................................................................................69
4.2 Installation of the Module............................................................................. 70
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5. Technical Data........................................................................................................ 75
6. Declaration of Conformity .................................................................................... 77
7. FCC Certificate ...................................................................................................... 78
1. Introduction to AT Commands ............................................................................ 81
1.2 Syntax Description....................................................................................... 81
1.5 SMS Text Mode ......................................................................................... 87
1.6 GPRS Communication................................................................................. 89
2. Call Control ............................................................................................................ 91
3. Control and Status ............................................................................................... 101
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5. Data - CSD/HSCSD.............................................................................................. 153
6. Data - GPRS ......................................................................................................... 157
7. Data - HSCSD....................................................................................................... 171
8. GPS Interoperability ........................................................................................... 177
9. Fax ......................................................................................................................... 181
9.2 Low Level Fax Commands........................................................................ 182
10. Identification ........................................................................................................ 183
11. Input/Output ........................................................................................................ 191
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12. Interface ................................................................................................................197
13. Network .................................................................................................................209
14. Phonebook.............................................................................................................235
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15. Short Message Services - Point to Point............................................................. 251
16. Short Message Services - Cell Broadcast........................................................... 287
17. SIM Application Toolkit...................................................................................... 289
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1. Introduction
1.1 Target Users
GM47 and GM48 modules are designed to be integrated into machine-
to-machine or man-to-machine communications applications. They are
intended to be used by manufacturers, system integrators, applications
developers and developers of wireless communications equipment.
1.2 Prerequisites
It is assumed that the person integrating the GM47 or GM48 into an
application has a basic understanding of the following:
• GSM networking;
• Wireless communication and antennas (aerials);
• AT commands;
• ITU-T standard V.24/V.28;
• Micro controllers and programming;
• Electronic hardware design.
1.3 Manual Structure
The manual is composed of four parts:
Part 1- Overview
This section provides a broad overview of the GM47/GM48 family and
includes a list of abbreviations used in the manual.
Part 2 - Developer’s Kit
This section lists the contents of the whole development kit and
provides the information to setup and use the equipment.
Part 3 - Integrating the Module
This section describes each of the signals available on the GM47/GM48
modules, along with mechanical information. The section also provides
you with design guidelines and explains what is needed to
commercialise an application from a regulatory point of view.
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Part 4 - Using AT Commands
This section lists all the AT commands relevant to the GM47 and
GM48, including their required parameters. The purpose of part 4 is to
give you detailed information on the function of the AT command set.
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2. GM47/GM48 MODULES
2. GM47/GM48 Modules
2.1 About the GM47/GM48 Family
Two modules make up the family; GM47 and GM48, for use in the
900/1800MHz and 850/1900MHz GSM bands respectively.
Note!
As the characteristics of the modules are quite similar, this manual only
refers to the GM48 where a difference exists; by default all other
references are to the GM47.
The products belong to a new generation of Sony Ericsson modules, and
are intended to be used in machine-to-machine applications and man-to-
machine applications. They are used when there is a need to send and
receive data (by SMS, CSD, HSCSD, or GPRS), and make voice calls
over the GSM network.
GM47 modules are not “stand alone” devices; they are used as the
engine in an application created by the customer. A typical application,
involves a micro-controller and GM47 module, in which the micro-
controller sends AT commands to the module via an RS232
communications link.
2.2 GM47 in a Communication System
Figure 2.1 illustrates the main blocks of a wireless communication
system using the GM47. It also shows the communication principles of
the system. The definitions in the figure, as used elsewhere in this
manual, are in accordance with the recommendations of GSM 07.07.
• The MS (mobile station) represents the GM47 module plus SIM
card. The module excluding SIM card, is known as the ME (mobile
equipment).
• The TE (terminal equipment) is a micro-controller (i.e., a computer)
and is a part of the application.
Wireless Communication System
GSM Network
Application
ME status, responses
TE
(DTE)
MS
(GM47)
AT commands to control MS
Figure 2.1 Main Blocks in a Wireless System
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In accordance with the recommendations of ITU-T (International
Telecommunication Union - Telecommunications Standardisation
Sector) V.24, the TE communicates with the MS over a serial interface.
The functions of the GM47 follow the recommendations provided by
ETSI (European Telecommunications Standards Institute) and ITU-T.
ETSI specifies a set of AT commands for controlling the GSM element
of the module; these commands are supplemented by Sony Ericsson
specific commands.
To find out how to work with AT commands, see “Part 4: Using AT
Figure 2.2 illustrates the interface between the module and the
application. The entire System Connector Interface is described in
Signals
and power
Antenna
connector
MS
(GM47)
TE
(Application)
60 pin
system connector
Figure 2.2 The Interface between the Module and the Application
Note!
ITU-T standards define TE and TA as DTE (Data Terminal Equipment)
and DCE (Data Circuit Terminating Equipment) respectively.
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2. GM47/GM48 MODULES
2.3 Features
The module performs a set of telecom services (TS) according to GSM
standard phase 2+, ETSI and ITU-T. The functions of the module are
implemented by issuing AT commands over a serial interface.
2.3.1 Types of Mobile Station
GM47 and GM48 are dual band mobile stations with the characteristics
shown in the tables below.
GM47
GSM900
E-GSM900
GSM1800
Frequency Range (MHz)
TX: 890-915
RX: 935-960
TX: 880-890
RX: 925-935
TX: 1710-1785
RX: 1805-1880
Channel spacing
200kHz
200kHz
Number of channels
173 carriers *8 (TDMA)
GSM: channels 1 to 124
E-GSM: channels 975 to 1023
374 carriers *8 (TDMA)
DCS: channels 512 to 885
Modulation
GMSK
GMSK
TX phase accuracy
Duplex spacing
< 5º RMS phase error (burst)
45MHz
< 5º RMS phase error (burst)
95MHz
Receiver sensitivity at
antenna connector
< –102dBm
< –102dBm
Transmitter output power
at antenna connector
Class 4
2W (33dBm)
Class 1
1W (30dBm)
Automatic hand-over between GSM 900 and GSM1800
GM48
GSM850
GSM1900
Frequency Range (MHz)
TX: 824-849
RX: 869-894
TX: 1850-1910
RX: 1930-1990
Channel spacing
200kHz
200kHz
123 carriers *8 (TDMA)
GSM: channels 128 to 251
298 carriers *8 (TDMA)
PCS: channels 512 to 810
Number of channels
Modulation
GMSK
GMSK
TX Phase Accuracy
Duplex spacing
< 5º RMS phase error (burst)
45MHz
< 5º RMS phase error (burst)
80MHz
Receiver sensitivity at
antenna connector
< –102dBm
< –102dBm
Transmitter output power
at antenna connector
Class 5
0.8W (29dBm)
Class 1
1W (30dBm)
Automatic hand-over between GSM850 and GSM1900
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2.3.2 Short Message Service
The module supports the following SMS services:
• Sending; MO (mobile-originated) with both PDU (protocol data
unit) and text mode supported.
• Receiving; MT (mobile-terminated) with both PDU and text mode
supported.
• CBM (cell broadcast message); a service in which a message is sent
to all subscribers located in one or more specific cells in the GSM
network (for example, traffic reports).
• SMS STATUS REPORT according to GSM 03.40.
• SMS COMMAND according to GSM 03.40.
The maximum length of an SMS message is 160 characters when using
7-bit encoding. For 8-bit data, the maximum length is 140 characters.
The module supports concatenated messages to extend this function. It
2.3.3 Voice Calls
The GM47 offers the capability of mobile originated and mobile
terminated voice calls, as well as supporting emergency calls.
Multi-party, call waiting and call deflection features are available.
Some of these features are network-operator specific.
For the inter-connection of audio, the module offers both single ended
and balanced analogue input and output lines. Direct interface to the
digital PCM (pulse code modulation) bus used within the module is
available, thus by-passing the internal analogue circuitry.
2.3.4 Data
The module supports the following data protocols:
• GPRS (General Packet Radio Service)
Modules are Class B terminals, which provide simultaneous
activation and attachment of GPRS and GSM services. GM47
modules are GPRS 4+1 enabled devices, which are capable of
transmitting in one timeslot per frame (up link), and receiving at a
maximum of four timeslots per frame (down link).
• CSD (Circuit Switched Data)
GM47 modules are capable of establishing a CSD communication at
9.6kbps.
• HSCSD (High Speed Circuit Switched Data).
GM47 supports HSCSD communication, with one timeslot per
frame capacity in the up link and two timeslots per frame capacity in
the down link (2+1).
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2. GM47/GM48 MODULES
2.3.5 SIM Card
An external SIM card with 3V or 5V technology, can be connected to
the module via its 60-pin system connector.
2.3.6 Average Power Consumption
Idle Mode
Transmit/Operation
Voice/CSD
<5mA
<5mA
<5mA
<5mA
<250mA (<2A peak)
<350mA (<2A peak)
<250mA (<1.75A peak)
<350mA (<1.75A peak)
GSM850 and GSM900
Data (GPRS 4+1)
Voice/CSD
GSM1800 and GSM1900
Data (GPRS 4+1)
Note!
The power consumption during transmission is measured at maximum
transmitted power.
2.3.7 Other Features
These include:
• 07.10 multiplexing.
• GPS interoperability.
• SIM application tool kit.
2.4 Service and Support
2.4.1 Web Pages
Visit our web site for the following information:
• where to buy modules or for recommendations concerning
accessories and components;
• the telephone number for customer support in your region;
• FAQs (frequently asked questions).
The web site address is:
2.4.2 Integrator’s Manual
This manual provides you with all of the information you need to
integrate the module into your application.
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GM47/GM48 INTEGRATOR’S MANUAL
2.4.3 Developer’s Kit
Sony Ericsson provides the opportunity for designers to test the module
on a limited scale using its Developer’s Kit. The kit includes the
necessary accessories (software and hardware) required to build and test
an application. It includes the following:
• GSM module, GM47 or GM48;
• This integrator’s manual;
• Software developer’s kit and manual;
• Developer’s kit hardware.
All the user needs to provide, is a computer or micro-controller and the
expertise to use AT commands.
2.5 Precautions
GM47 and GM48 modules are static sensitive devices (SSDs). Normal
SSD procedures for electronic devices should be used when handling
more information about safety and product care. Do not exceed the
environmental and electrical limits as specified in “Technical Data”,
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3. ABBREVIATIONS
3. Abbreviations
Abbreviation
Explanations
Cell Broadcast Message
CBM
CBS
CSD
DCE
DTE
Cell Broadcast Service
Circuit Switched Data
Data Circuit Terminating Equipment
Data Terminal Equipment
Dual Tone Multi Frequency
Enhanced Full Rate
DTMF
EFR
EMC
ETSI
Electro-Magnetic Compatibility
European Telecommunication Standards Institute
Full Rate
FR
GPRS
GPS
GSM
HR
General Packet Radio Service
Global Positioning System
Global System for Mobile Communication
Half Rate
HSCSD
ITU-T
High Speed Circuit Switched Data
International Telecommunication Union - Telecommunications
Standardisation Sector
ME
Mobile Equipment
Mobile Originated
Mobile Station
MO
MS
MT
Mobile Terminated
Pulse Code Modulation
Protocol Data Unit
Radio Link Protocol
Radio Frequency
PCM
PDU
RLP
RF
RTC
SDP
SIM
SMS
Real Time Clock
Service Discovery Protocol
Subscriber Identity Module
Short Message Service
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GM47/GM48 INTEGRATOR’S MANUAL
Abbreviation
Explanations
TA
TE
Terminal Adapter
Terminal Equipment
Third Harmonic Distortion
Telecom Services
THD
TS
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1. Introduction
1.1 Overview
The developer’s kit is designed to get you started quickly. It contains all
the hardware you will need to begin the development of an application.
The only items you need to provide are; a computer or micro controller,
a SIM card and network subscription, and a knowledge of programming
with AT commands.
Note!
Before connecting up and using the developer’s kit, we strongly
recommend you read “Part 3: Integrating the Module”, page 37 and all
of this section. There are many switches, jumpers and connector options
in the developer’s kit. A knowledge of the functionality of the GM47
module is therefore essential before you start altering the hardware
settings.
The main hardware in the developer’s kit is a screened box, containing
a board onto which you plug the GM47 module. Connectors, switches,
jumpers and SIM card holder are provided to allow you to configure and
access all the functions of the module.
1.2 Contents of the Kit
Please take the time to check the contents of your kit against the list
shown below. If any of the items are missing contact your supplier
immediately.
Developer’s kit - Part Number DPY 102 218
Contents:
Description
Product Number
Qty
Radio modem:
GM47 module or
GM48 module
1
DPY 102 201
DPY 102 204
GM47/GM48 developer’s kit (screened
box and development board)
KRY 101 1907
1
Switched mode PSU 12V d.c.
UK mains plug
EPA-121DA-12
1
1
1
EN90POWERLEADUK
EN90POWERLEADEU
European mains plug
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GM47/GM48 INTEGRATOR’S MANUAL
Description
Product Number
Qty
Cable with connector/cable serial 9-9 PIN
Portable handsfree
DB9(M)-DB9(F)
2002-1-24
1
1
1
1
Quad band antenna
RG174
Data carrier/CD-ROM containing:
Software Manual;
Integrator’s Manual
LZY 213 1319
1.3 General Functioning of the Kit
The following block diagrams are provided to help you understand the
general principles of operation of the developer’s kit.
You have the following options as shown in Figure 1.1:
• Connect the GM47 internally, direct to J4 or position it externally
and connect to J10 via a flat cable.
• Use the kit’s connectors to access and control the GM47 (all
switches and jumpers in their default positions).
• Access and control the GM47 directly via J12 and a flat cable. This
allows you to selectively bypass any circuits contained on the board,
and test your own application.
Pin header
60 pins male
1.27mm pitch
J12
Pins connected in parallel
External
Application
J11
J10
J4
User selectable
jumpers
fit direct to J4
GM47
alternate flat cable to J10
Developer's
board circuits
and ports
Pin headers
60 pins female
1.27mm pitch
Pin header
60 pins male
2.54mm pitch
Developer's board
Figure 1.1 Module connections to the developer’s board
Figure 1.2 shows the various on-board voltages and how they are fed to
the GM47 and other circuitry. The developer’s board is powered by an
external power supply connected to Vcc.
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1. INTRODUCTION
5V to development
board circuits
Switched
when VIO
present
VIO present
LED
2V7
To development
board & interface
circuits
5V
reg.
2V7
reg.
VIO
GM47
3V8
VCC
3V8
reg.
12v
Vcc
DC Power Socket,
Input 10..15V
+
-
TP4 TP5
Figure 1.2 Power supply connection and the on-board voltages
Figure 1.3, Figure 1.4 and Figure 1.5 show how various signals are
routed on the developer’s board. Thicker lines indicate multiple signals.
J12
VIO
General purpose I/O
LED
STATUS LED
(Blinks when
connected to network)
ON/OFF
SERVICE
I²C
SW4
ON/OFF
GM47
2V7
SERVICE LED
(Lit when SW4 closed)
n/c
VRTC
SIM
0.22F
J5
Selectable
Jumpers
SIM holder with
SIM presence
switch (to DGND)
U10 SIM
Figure 1.3 Miscellaneous signals, connection and routing
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J12
ATMS
AFMS
(Audio out)
(Audio in)
EAR
3.5mm socket
MIC
3.5mm socket
MICN, MICP, BEARN, BEARP
GM47
Handset
RJ11 connector
Buzzer
PCM
Buzzer
PCM
Selectable
Jumpers
8 pin Mini-DIN
Figure 1.4 Audio signals, connection and routing
J12
TD, RD, DTR, DCD,
RTS, CTS, RI
UART1 (EDB)
TD2, RD2 & SERVICE
TD3 & RD3
GM47
UART2 (ACB)
UART3
Selectable
jumpers
Level shifters
Figure 1.5 Comms signals, connection and routing
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2. USING THE DEVELOPER’S KIT
2. Using the Developer’s Kit
This section provides you with the information needed to setup and use
the developer’s kit. Before changing switch and jumper settings, refer
Front and rear views of the developer’s kit are shown below. To access
the inside, remove the 8 screws on the top of the box and the cover plate.
48 Developer's Kit
GM47/GM
SET
D
AN
H
M
PC
CE
S
EAR
I
MIC
U
V
R
IO
C
D
A
T
SE
Vcc
ST
ON/OF
VIO
V
OFF
APP
5
+
C
OFF
ON
N
v
12
Figure 2.1 Front view
RF
2
T
UAR
1
T
UAR
3
T
UAR
Figure 2.2 Rear view
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2.1 Start up Check List
To use the developer’s kit in standard format check the following:
• With the case lid removed, make sure the GM47 module is plugged
into J4 and the RF lead is connected to the rear of the module;
• Add your SIM card;
• Connect the serial cable between your computer and UART1 on the
rear panel;
• Connect the antenna to the RF connector on the rear panel;
• Connect the audio equipment if required;
• Plug the external power supply into the socket marked 12v on the
front panel;
• Switch Vcc to ON;
• Push ON/OFF for at least 2 seconds until the yellow VIO LED is on.
Your developer’s kit should now be operational and ready to receive AT
commands.
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2. USING THE DEVELOPER’S KIT
2.2 Developer’s Board Overlay
Figure 2.3 shows the developer’s board, including the position of all the
connectors, switches and jumpers (default positions). You will notice
that many jumpers are labelled “SW”. This is because the board was
previously fitted with DIL switches.
UART2
(ACB)
UART1
(EDB)
UART3
Ground stud
RF connector
U10
SIM
Holder
TP5 TP4
VCC
SIM test
connector
J5
J11
J12
SW8
SW1
J10
J4
SW9
SW11
SW7
SW6
SW3
SW5
JP18
JP21
SW10
JP24
SW4
12v Vcc
DC Power NC/OFF/ON
DCIO
Maintain in
ON/OFF
(module)
Handset
PCM
MIC
EAR
Audio in Audio out
(ATMS) (AFMS)
Socket,
Input
10..15V d.c.
power to
module
OFF position
(Not used with this module.
Only present for backward
compatibility)
Figure 2.3 Developer’s board overlay
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2.3 Jumpers, Switches and Connectors
You will notice that many jumpers are labelled “SW”. This is because
the board was previously fitted with DIL switches. All jumpers are
located on the developer’s board (see “Developer’s board overlay”,
Jumper
Signal
Setting
JP18
TD
Maintain jumper in
lower default position
JP21 JP18
JP21
JP24
RD
Maintain jumper in
lower default position
Reserved for
future use
MUST remain open to prevent
damage to the module. As an extra
precaution, maintain DCIO in the OFF
position
SW4
SERVICE
Connect the pins using the floating
connector ONLY when programming
the module or logging data
SW1, SW3, SW5,
SW6, SW7, SW8,
SW9, SW10,
See diagram
below
Default positions shown below. Move
any “SW” jumper to the right-hand
position to divert the signal to
connector J12. Remove the J11 links
to bypass J8, J9 or CP1 and process
audio signals externally
SW11, J11 links
J11
SIMRST
SIMCLK
SCL
ON/OFF
PRESENCE
SIMVCC
SIMDAT
SDA
SW8
SW1
SW9
SW6
SW3
SW5
BUZZER
LED
RI
DCD
VRTC
DTR
CTS
RD3 (RX3)
TD3 (TX3)
RTS
RD (DFMS)
The links shown
on J11 must be
in place to
SW11
SW7
PCMULD
PCMIN
TD (DTMS)
RD2 (CFMS)
TD2 (CTMS)
PCMDLD
access audio
on J8, J9 or CP1
PCMOUT
PCMCLK
47
49
48
50
BEARP
SERVICE
AFMS
PCMSYN
MICN
MICP
ATMS
BEARN
SW10
59
60
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2. USING THE DEVELOPER’S KIT
All switches are mounted on the front panel of the developer’s box.
Switch
Description
Operation
Vcc
Toggle switch
Switches power from external power supply to
module. Has three positions; NC, OFF and ON.
Switch to ON to connect power to the module
ON/OFF
DCIO
Push button
switch
Switches module on and off. To power up the
module, push button for at least 2 seconds,
until the yellow VIO LED is on. Repeat the
process to turn the module off
Toggle switch
Maintain in OFF position. Included only for
backwards compatibility
Connector
Description
Connections
UART1
(EDB)
9-way
Full 9-pin RS232 communication port. Used
during run-time to communicate with the
module (AT-commands, data transmission,
etc.)
D socket
(accessible
on the rear
panel)
DCD
1
6
2
7
3
8
4
9
5
RD
RTS
TD
CTS
DTR
RI
UART2
(ACB)
9-way
3 line RS232 communications port
(+SERVICE). Used during service and
maintenance operations. Also used to
download new software to the module
D socket
(accessible
on the rear
panel)
1
6
RD2
2
7
3
8
4
9
5
SERVICE
TD2
UART3
9-way
3 line serial port. RS232 levels
D socket
(accessible
on the rear
panel)
1
6
RD3
TD3
2
7
3
8
4
9
5
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GM47/GM48 INTEGRATOR’S MANUAL
Connector
Description
Connections
Handset
RJ11 socket
Connector for a standard telephone
handset. As PCM paths are open inside the
module, a default short circuit is made
between PCMDLD-PCMIN and PCMULD-
PCMOUT signals on test connector J11 to
enable analogue audio in downlink and
uplink directions. Jumpers are in place
between pins 48 & 50 and between pins 47
& 49
1 2 3 4
Pin #
Signal
1
2
3
4
MICN
BEARN
BEARP
MICP
PCM
8 pin mini-DIN
connector
Carries PCM signals
Pin #
Signal
1
2
3
4
5
6
7
8
9
VIO (2.75V d.c. output)
PCMULD
PCMDLD
9
8
PCMCLK
1
6
PCMSYNC
DGND
PCMIN
2
5
7
PCMOUT
DGND
3
4
J4
J5
SYSTEM
Allows direct connection of the module to
the development board (see Figure 2.3,
connector
SIM card test
connector
Connector to gain access to the SIM card
signals, which are connected in parallel with
U10
Pin #
Signal
1
2
3
4
5
6
7
SIMVCC
SIMRST
SIMCLK
SIMDAT
SIMPRESENCE
SIMGND
SIMGND
U10
EAR
SIM Holder
Connector for SIM card. Signals are also
present at test connector J5, described
above
3.5mm2-pole Audio output (unbalanced) or Audio From
jack socket
Mobile Station (AFMS). Make sure jumpers
are in place between pins 48 & 50 and
between pins 47 & 49
ground signal
MIC
3.5mm2-pole Audio input (unbalanced) or Audio To
jack socket
Mobile Station (ATMS). Signal source must
be AC-coupled as a bias voltage for
electret microphones is provided
(2.0 - 2.5Vd.c.). Make sure Jumpers are in
place between pins 48 & 50 and between
pins 47 & 49
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LZT 123 7263 R1C
2. USING THE DEVELOPER’S KIT
Connector
Description
Connections
J10
SYSTEM
connector
For optional flat cable connection between
the module and the development board
J11
TEST
connector
60 pin, 2.54mm pitch, dual row pin header
that carries all signals present at the system
connector of the module. Used for easy
testing of the signals (see Figure 2.4,
J12
Application
connector
For flat cable connection between a host
application and the module. Most of the
signals pass through jumpers that allow the
developer to select whether a specific
signal is routed to/from the development
board or to/from the host application. If no
application is connected to J12, these
jumpers (SW1, SW3, SW5, SW6, SW7, SW8,
SW9, SW10 & SW11) serve as on/off switches
for the module signals (see Figure 2.3,
12v
RF
2.1mm DC
Allows connection of an
Power Socket external power supply.
Between 10V and 15V d.c. at
6 watts is required
SMA panel
socket
Connect the supplied antenna
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GM47/GM48 INTEGRATOR’S MANUAL
2.4 System Connector Pin Assignments
Refer to the table below when monitoring signals on, or connecting to,
J10, J11 or J12. The table shows the system-connector pin assignments
for the GM47 module.
1
VCC
VCC
DGND
DGND
DGND
DGND
DGND
DGND
ON/OFF
SIMPRESENCE
SIMDAT
DAC
2
3
4
5
VCC
6
J10, J11 & J12 pin
numbering
viewed from the
front of the
7
VCC
8
9
VCC
10
12
14
16
18
20
22
24
26
28
30
32
34
36
38
40
42
44
46
48
50
52
54
56
58
60
11
13
15
17
19
21
23
25
27
29
31
33
35
37
39
41
43
45
47
49
51
53
55
57
59
VCC
developer’s box
Reserved for future use
SIMVCC
SIMRST
SIMCLK
IO1
1
2
IO2
IO3
IO4
VRTC
ADC1
ADC2
ADC3
SDA
SCL
BUZZER
LED
OUT5
VIO
TX_ON
DTR
RI
DCD
RTS
CTS
TD (DTMS)
TD3 (TX3)
TD2 (CTMS)
PCMULD
PCMOUT
PCMSYNC
MICP
RD (DFMS)
RD3 (RX3)
RD2 (CFMS)
PCMDLD
PCMIN
PCMCLK
MICN
59
60
BEARP
BEARN
SERVICE
AGND
AFMS
ATMS
Figure 2.4 System connector pin assignments
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LZT 123 7263 R1C
1. Mechanical Description
1.1 Interface Description
The pictures below show the mechanical design of the GM47 along
with the positions of the different connectors and mounting holes. The
GM47 is protected with AISI 304 stainless steel covers that meet the
environmental and EMC requirements.
Mounting hole/ground connection
System connector
Antenna connector
Figure 1.1 GM47 viewed from below
Figure 1.2 GM47, viewed from above
Please note the following:
• Mounting holes positioned at the corners make it possible to
securely bolt the module into your application.
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LZT 123 7263 R1C
GM47/GM48 INTEGRATOR’S MANUAL
• Keypad, display, microphone, speaker and battery are not part of the
module.
• The SIM card is mounted in your application, external to the
module.
• The System Connector is a 60-pin, standard 0.05in (1.27mm) pitch
type. The pins and their electrical characteristics are described in
• Information about the Antenna Connector is found in
1.2 Physical Dimensions
2.20 (4x)
2.86
4.78
3.80
2.05
7.15 2.90
4.60
3.00
2.80
50.00
33.00
30.20
2.30
9.00
46.40
1.80
Figure 1.3 Dimensions of the GM47
Measurements are given in millimetres. See also “Technical Data”,
40
LZT 123 7263 R1C
2. System Connector Interface
2.1 Overview
Electrical connections to the module (except the antenna), are made
through the System Connector Interface. The system connector is a
60-pin, standard 0.05in (1.27mm) pitch device.
The system connector allows both board-to-board and board-to-cable
connections to be made. Use a board-board connector to connect the
module directly to a PCB, and a board-cable connector to connect the
module via a cable.
Figure 2.1 below shows the numbering of the connector pins.
A ground connection is provided at the mounting hole next to the RF
connector on the module as shown below. Connect this ground point to
the DGND pins of the module by the shortest, low-impedance path
possible. The purpose of this connection is to allow any ESD picked up
by the antenna to bypass the module’s internal ground path.
Ground
connection
Pin 59
Pin 1
Pin 60
Pin 2
Figure 2.1 GM47, viewed from underneath
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GM47/GM48 INTEGRATOR’S MANUAL
The following table gives the pin assignments for the system connector
interface and a short description for each signal.
Note!
Under the heading “Dir” in the table, module input and output signals
are indicated by the letters I and O respectively.
Pin
Signal Name
Dir
Signal Type
Description
1
VCC
-
-
-
-
-
-
-
-
-
-
-
-
Supply
Power supply
Digital ground
Power supply
Digital ground
Power supply
Digital ground
Power supply
Digital ground
Power supply
Digital ground
Power supply
Digital ground
2
DGND
VCC
-
3
Supply
4
DGND
VCC
-
5
Supply
6
DGND
VCC
-
7
Supply
8
DGND
VCC
-
9
Supply
10
11
12
13
DGND
VCC
-
Supply
-
DGND
Reserved for
future use
14
15
16
ON/OFF
I
Internal pull
Turns the module on and off.
up, open drain Former WAKE_B
SIMVCC
-
I
Digital 3V/5V
SIM card power supply. Power output
from module for SIM Card
SIMPRESENCE
Internal pull
SIM Presence
up, open drain A “1” indicates that the SIM is missing; a
“0” that it is inserted
17
18
19
20
21
22
23
24
25
26
27
SIMRST
SIMDATA
SIMCLK
DAC
O
Digital 3V/5V
Digital 3V/5V
Digital 3V/5V
Analogue
SIM card reset
I/O
O
SIM card data
SIM card clock
O
Digital to analogue converter
General purpose input/output 1
General purpose input/output 2
General purpose input/output 3
General purpose input/output 4
Supply for real time clock
Analogue to digital converter 1
Analogue to digital converter 2
IO1
I/O
I/O
I/O
I/O
I
Digital 2.75
Digital 2.75
Digital 2.75
Digital 2.75
Supply 1.8V
Analogue
IO2
IO3
IO4
VRTC
ADC1
ADC2
I
I
Analogue
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LZT 123 7263 R1C
2. SYSTEM CONNECTOR INTERFACE
Pin
Signal Name
Dir
Signal Type
Description
28
29
ADC3
SDA
I
Analogue
Analogue to digital converter 3
2
I/O
2.75, internal
pull up
I C data
2
30
SCL
O
2.75, internal
pull up
I C clock
31
32
33
34
BUZZER
OUT5
LED
O
O
O
O
Digital 2.75
Digital 2.75
Digital 2.75
Buzzer output from module
Programmable output 5
Flashing LED
VIO
Power Out
2.75V
Module power indication. VIO is a
2.75V at 75mA output supply that can
be used to power external circuitry that
interfaces to the GM47
35
TX_ON
O
Digital 2.75
This output indicates when the GSM
module is going to transmit the burst
36
37
38
39
40
41
RI
O
I
Digital 2.75
Digital 2.75
Digital 2.75
Digital 2.75
Digital 2.75
Digital 2.75
Ring Indicator (UART1)
DTR
DCD
RTS
CTS
TD
Data Terminal Ready (UART1)
Data Carrier Detect (UART1)
Request To Send (UART1)
Clear To Send (UART1)
O
I
O
I
Transmitted Data (UART1).
Data from DTE (host) to DCE (module).
Former DTMS
42
RD
O
Digital 2.75
Received Data (UART1).
Data from DCE (module) to DTE (host).
Formerly DFMS
43
44
45
TD3
RD3
TD2
I
Digital 2.75
Digital 2.75
Digital 2.75
UART3 transmission
UART3 reception
O
I
UART2 transmission. Used for flashing
the memory. Former CTMS
46
RD2
O
Digital 2.75
UART2 Reception. Used for flashing the
memory. Former CFMS
47
48
49
50
51
52
53
54
55
PCMULD
PCMDLD
PCMOUT
PCMIN
I
Digital 2.75
Digital 2.75
Digital 2.75
Digital 2.75
Digital 2.75
Digital 2.75
Analogue
Analogue
Analogue
DSP PCM digital audio input
DSP PCM digital audio output
Codec PCM digital audio output
Codec PCM digital audio input
DSP PCM frame sync
O
O
I
PCMSYNC
PCMCLK
MICP
O
O
I
DSP PCM clock output
Microphone Input positive
Microphone Input negative
Speaker output positive
MICN
I
BEARP
O
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GM47/GM48 INTEGRATOR’S MANUAL
Pin
Signal Name
Dir
Signal Type
Description
56
57
58
BEARN
AFMS
O
O
I
Analogue
Analogue
2.7V
Speaker output negative
Audio output from module
SERVICE
Flash programming voltage for the MS.
Enable logger information if not
flashing. Formerly VPPFLASH
59
60
ATMS
I
Analogue
-
Audio input to module
Analogue ground
AGND
-
2.2 General Electrical and Logical Characteristics
Many of the signals, as indicated in the table above, are high-speed
CMOS logic inputs or outputs powered from a 2.75V±5% internal
voltage regulator, and are defined as Digital 2.75V. Whenever a signal
is defined as Digital 2.75V, the following electrical characteristics
apply.
Parameter
High Level Output Voltage (V ), I = –2mA
Min.
2.2
0
Max.
2.75
0.6
Units
V
OH
o
Low Level Output Voltage (V ), I = 2mA
V
OL
o
High Level Input Voltage (V )
1.93
0
2.75
0.8
V
IH
Low Level Input voltage (V )
V
IL
Note!
Unused pins can be left floating.
2.2.1 General Protection Requirements
• All 2.75V digital inputs will continuously withstand and suffer no
damage in the power-on or power-off condition when subjected to
any voltage from -0.5V to 3.47V (3.3V+5%).
• All 2.75V digital outputs will continuously withstand a short circuit
to any other voltage within the range 0V to 3V.
• All analogue outputs will continuously withstand a short circuit to
any voltage within the range 0V to 3V.
• The SIM output signals and the SIMVCC supply will continuously
withstand a short circuit to any voltage within the range 0V to 5.8V.
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LZT 123 7263 R1C
2. SYSTEM CONNECTOR INTERFACE
2.3 Grounds
Pin
Signal
Description
2, 4, 6, 8, 10, 12
60
DGND
AGND
Digital ground
Analogue ground
There are two ground connections in the GM47, AGND (analogue
ground) and DGND (digital ground). Pin assignments are shown in the
table above.
Note!
AGND and DGND are connected at a star point inside the module. They
must not be joined together in your application.
2.3.1 Analogue Ground - AGND
AGND is the return signal, or analogue audio reference, for ATMS
(Audio To Mobile Station) and AFMS (Audio From Mobile Station).
Parameter
Limit
I
≅12.5mA
max
2.3.2 Digital Ground - DGND
DGND is the reference or return signal for all system interface digital
signals and is also the d.c. return for SERVICE and the power supply,
VCC. Connect all DGND pins together in your application in order to
carry the current drawn by the module.
2.4 VCC - Regulated Power Supply Input
Pins
1, 3, 5, 7, 9, 11
Signal
VCC
Description
regulated power supply input
Power is supplied to the module VCC pins, from an external source.
Connect all VCC pins together in your application in order to carry the
current drawn by the module.
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LZT 123 7263 R1C
GM47/GM48 INTEGRATOR’S MANUAL
The electrical characteristics for VCC are shown in the table below.
Parameter
Mode
Limit
Nominal
3.6V
Tolerance
including ripple
3.4V - 4.0V
a
Vcc supply voltage
Over-voltage limit
Maximum ripple
Burst transmission
5.5V
TBD
Maximum allowable voltage
drop
200mV
<350mA (average)
<2A (peak)
Current drawn, at full TX
power
a. Measured at system connector pins.
Note!
GM47 has no internal capacitance to supply the large current peaks
during GSM burst transmission. We recommend you follow these
general guidelines:
• Fit a low ESR electrolytic capacitor close to the module:
> 1,000µF;
<100mΩ ESR.
• Make sure power supply to module line resistance is <200mΩ.
2.5 ON/OFF and External Power Signal
Pin
Signal
Dir
Description
14
34
ON/OFF
VIO
I
Pulse signal to turn the module on or off
2.75V supplied by the module
O
2.5.1 Switching the module ON and OFF
The module is turned on and off by momentarily grounding the
ON/OFF pin. This input should be driven by an open collector, or other
device which will not tie the input high, to allow the internal alarm clock
function to operate. See the table below for exact characteristics. In the
OFF state the current consumption of the module is less than 100µA.
The ON/OFF signal is a digital input with the following characteristics:
Parameter
Min.
Typ.
Max.
Units
Voltage HIGH level (FALSE)
Voltage LOW level (TRUE)
Pull-up resistance (internal)
VCC
V
0
0.3 x VCC
39
V
kΩ
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LZT 123 7263 R1C
2. SYSTEM CONNECTOR INTERFACE
The following timing diagram illustrates both power-up and power-
down processes.
Module on
Module off
t1
t2
ON/OFF
VIO
tpwr
Module
powered
Module power-up
Module power-down
Figure 2.2 ON/OFF timing and VIO performance
Times are defined as follows:
Time
Description
Min.
Typ.
Max.
Units
t
Turn-on pulse time
Turn-off pulse time
Hardware-reset pulse time
≥2
s
1
≥1
s
s
t2
a
>10
tpwr
Time for VIO and internal voltages
to be established
100
200
ms
a. Active only when a full system reset is required.
2.5.2 VIO - 2.75V Supply
VIO provides an output voltage derived from an internal 2.75V
regulator. Its electrical characteristics are shown below.
Parameter
Min.
Typ.
Max.
2.85
75
Units
Output Voltage (I
Load current
= 50mA) 2.70
2.75
V
load
mA
You can use this output for the following:
• to indicate that the module is alive;
• to power interface circuits, external to the module.
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GM47/GM48 INTEGRATOR’S MANUAL
2.6 Analogue Audio
Pin
Signal
Dir
Description
57
59
60
AFMS
ATMS
AGND
O
I
Audio from mobile station
Audio to mobile station
-
Ground (return) for analogue audio
ATMS is the audio input, and AFMS is the audio output, of the module.
These signals can be used in Hands-free or Portable Hands-free mode.
Hands-free Mode
This mode is used for audio accessories, such as car kits and hands-free
equipment.
Portable Hands-free Mode
This is the default mode. It activates a different amplification factor in
the ME, and activates a 2V microphone bias level for ATMS. The bias
level is adjustable using AT*E2EAMS.
2.6.1 Audio To Mobile Station - ATMS
ATMS is the analogue audio input to the module. Internally, the signal
is sent to the CODEC (COder/DECoder), where it is converted to digital
audio in PCM (Pulse Code Modulation) format. The encoded audio is
sent to PCMOUT via the internal PCM bus.
ATMS provides a DC bias when it is used as the microphone input in
Portable Hands-free applications. All other sources must be
a.c.-coupled to avoid attenuation of low frequencies, and to prevent
incorrect biasing or damage to the ATMS input. Use a capacitor greater
than the value shown in the table below.
The ATMS input is a passive network followed by the transmit part of
the CODEC.
Parameter
Limit
Application driving impedance (0.3 - 3.5kHz)
≤300Ω
a
≥1µF
AC coupling capacitance
Module input impedance (0.3 - 3.5kHz)
Low frequency cut-off (-3dB)
>50kΩ
300Hz ± 50Hz
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LZT 123 7263 R1C
2. SYSTEM CONNECTOR INTERFACE
Parameter
Limit
High frequency cut-off (–3dB)
Hands-free mode
Portable hands-free mode
Additional Gain in Portable hands-free mode
> 3500Hz ± 50Hz
0V
Output d.c. bias level
2.0V ± 0.1V
28.5dB
a. The a.c.-coupling capacitance must be supplied by your application, unless
a d.c.-coupled microphone is used.
The following tables show the nominal PGA (programming gain
settings). For more information see the relevant AT commands.
Maximum input voltage limit: 245mV
rms
Input
Input (mV
)
TXAGC (dB)
AUX AMP
PCMOUT (dBm0)
rms
gain
ATMS
245
0
13
3
Maximum input level at MICI, 61.4mV output at
rms
PCMOUT = 3dBm0
Input
Differential
TXAGC (dB)
AUX AMP
gain
PCMOUT (dBm0)
input (mV
)
rms
MICN
MICP
61.4
0
25
3
Output at AFMS for 3dBm0 at PCMIN
Input
dBm0
RXPGA
Volume
AFMS (mV
)
rms
control (dB)
PCMIN
3
0
0
436
Output at BEARN/BEARP for 3dBm0 at PCMIN
Input
dBm0
RXPGA
Volume
BEAR (mV
)
rms
control (dB)
PCMIN
3
0
0
388
2.6.2 Audio From Mobile Station - AFMS
AFMS is the analogue audio output from the module and may be used
to drive a speaker or the ear-piece in a portable hands-free accessory.
PCM digital audio signals, entering the module through the PCMIN pin,
are translated to analogue signals by the CODEC. See “2.7 PCM Digital
Audio”, page 52 for further information.
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LZT 123 7263 R1C
GM47/GM48 INTEGRATOR’S MANUAL
The table below shows the audio signal levels for AFMS.
Parameter
Limit
Speaker impedance
Output Capacitance
64Ω to 1kΩ
2.2µF ±10%
Drive capability into 5kΩ
>2.4V
>2.2V
>1.3V
p-p
p-p
p-p
(0.3 - 3.5kHz)
Drive capability into 1.5kΩ
(0.3 - 3.5kHz)
Levels (THD <5%)
Drive capability into 150Ω
(at 1kHz)
2.6.3 Microphone Signals
Pin
Speaker signals
Dir
Function
53
54
MICP
MICN
I
I
Microphone positive input
Microphone negative input
MICP and MICN are balanced differential microphone input pins.
These inputs are compatible with an electret microphone. The
microphone contains an FET buffer with an open drain output, which is
supplied with at least +2V relative to ground by the module as shown
below.
1k
MICP
2 - 2.5V
@ 1mA
68nF
68nF
CODEC
MICN
1k
GM47
AGND
Figure 2.3 Microphone connections to the module
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LZT 123 7263 R1C
2. SYSTEM CONNECTOR INTERFACE
2.6.4 Speaker Signals
Pin
Speaker signals
Dir
Function
55
56
BEARP
BEARN
O
O
Speaker positive output
Speaker negative output
BEARP and BEARN are the speaker output pins. These are
differential-mode outputs. The electrical characteristics are given in the
table below.
Parameter
Limit
Output level (differential)
Output level (dynamic load = 32Ω)
≥4.0Vpp
≥2.8Vpp
–9dB ± 1
a
Gain PCMIN to BEARP/BEARN (differential)
Distortion at 1kHz and maximum output level
Offset, BEARP to BEARN
≤5%
±30mV
≥40dB
Ear-piece mute-switch attenuation
The following table shows the ear piece impedances that can be
connected to BEARP and BEARN.
Ear piece model
Impedance
Tolerance
Dynamic ear piece
Dynamic ear piece
Piezo ear piece
[32Ω + 800µH] // 100pF
[150Ω + 800µH] // 100pF
1kΩ + 60nF
±20%
±20%
±20%
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GM47/GM48 INTEGRATOR’S MANUAL
2.7 PCM Digital Audio
Pin
Signal
Dir
Function
52
51
47
48
50
49
PCMCLK
PCMSYNC
PCMULD
PCMDLD
PCMIN
O
O
I
PCM clock
PCM frame sync
PCM audio input to DSP
PCM audio output from DSP
PCM audio input to Codec
PCM audio output to Codec
O
I
PCMOUT
O
Figure 2.4 shows the PCM (Pulse Code Modulation) digital audio
connection for external devices. These connections can be used to
process PCM digital audio signals, bypassing the module’s internal
analogue audio CODEC.
GM47
PCMSYNC & PCMCLK
PCMDLD
PCMULD
PCMIN
DSP
CODEC
PCMOUT
System connector
Analogue
audio
signals
Link for internal
digital-audio processing
Figure 2.4 Pin connections to digital audio
Note!
When no external audio processing is performed, the following pins
must be connected together:
• PCMDLD to PCMIN
• PCMULD to PCMOUT
Electrical characteristics
Digital 2.75V CMOS input/output electrical characteristics apply.
52
LZT 123 7263 R1C
2. SYSTEM CONNECTOR INTERFACE
2.7.1 PCM Data Format
All of the module’s PCM signals, including signals between its CODEC
and DSP conform to the PCM data I/O format of the industry standard
DSP from Texas Instruments.
PCMCLK (bit clock) and PCMSYNC (frame syncronisation) are both
generated by the DSP within the module.
The DSP within the module is the master therefore all external PCM
clocks and data from external devices must be synchronized to it
13-Bit PCM Mode
Bit
Contents
D15 to D14
D13 to D1
D0
Equal to D13
Two's complement of the 13-bit PCM
LSB, not used
The module implements 13-bit PCM with the 13-bit data embedded in
contains 16-bits: D0 to D15. D13 to D1 is the two’s complement value
of the 13-bit PCM, with D13 as the sign bit. D14 and D15 are always
set to be equivalent with D13. D0, the LSB, is not used as shown in
Figure 2.5 below.
= D13
13 bit PCM
D0
MSB D14 D13 D12 D11 D10 D9 D8 D7 D6 D5 D4 D3 D2 D1 LSB
16 bit data word
Figure 2.5 16-bit data word format
16-Bit PCM Mode
Bit
D15 - D0
Contents
Two's complement
D14 and D0 filled with significant bits. D0 is the two’s compliment
value of the 16-bit PCM with bit 15 as the sign bit.
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GM47/GM48 INTEGRATOR’S MANUAL
PCM Timing Diagrams
CPU has 45µs to serve an interrupt and setup data channels. Data is sent
on the falling edge of the sync pulse. The data bits in PCMULD and
PCMDLD are aligned so that the MSB in each word occurs on the same
clock edge as shown in Figure 2.7.
125 µs
Clk
Sync
Data
45 µs
Figure 2.6 16-bit word within 24-bit frame
PCMCLK
tPSS
PCMSYN
PCMIN
tPSH
tDSH
tDSL
MSB
D14
D13
tPDLP
D14
PCMOUT
X
MSB
D13
Figure 2.7 PCM Timing Diagram
Name
Description
Typ.
2.5
5
Unit
µs
t
t
t
t
t
PCMSYN (setup) to PCMCLK (fall)
PCMSYN pulse length
PSS
µs
PSH
DSL
PCMI (setup) to PCMCLK (fall)
PCMI (hold) from PCMCLK (fall)
PCMO valid from PCMCLK (rise)
2.5
2.5
2.5
µs
µs
DSH
PDLP
µs
Name
Description
Typ.
200
5
Unit
kHz
µs
F
PCM clock frequency
PCMCLK
T
PCM clock period with 50/50 mark space ratio
PCM sync frequency
PCMCLK
F
8
kHz
PCMSYN
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Typical Rise/Fall times
Rise Time
Fall Time
Unit
PCMCLK
PCMSYN
PCMOUT
PCMDLD
19
18
ns
ns
ns
ns
19
15
900
20
900
19
2.8 Serial Data Interfaces
Pin
Signal
Dir
Description
RS232
CCITT Nº
41
42
39
40
37
38
36
45
46
43
44
TD
I
Serial data to module (UART1)
Serial data from module (UART1)
Request To Send (UART1)
Clear To Send (UART1)
103
104
105
106
108.2
109
125
RD
O
I
RTS
CTS
DTR
DCD
RI
O
I
Data Terminal Ready (UART1)
Data Carrier Detect (UART1)
Ring Indicator (UART1)
O
O
I
TD2
RD2
TD3
RD3
UART2 Data Transmission
UART2 Data Reception
O
I
UART3 Data Transmission
UART3 Data Reception
O
The serial channels, consisting of three UARTs, are asynchronous
communication links to the application or accessory units. UART1 has
RS-232 functionality. UART2 and UART3 behave as general-purpose
serial data links. In addition they are used for accessories and GPS
respectively.
Digital 2.75V CMOS input/output electrical characteristics apply.
The standard character format consists of 1 start bit, 8 bit data, no parity
and 1 stop bit. In all, there are 10 bits per character.
2.8.1 UART1 (RS232) - RD, TD, RTS, CTS, DTR, DCD and RI
UART1 signals conform to a 9-pin RS232 (V.24) serial port, except for
o
the DSR (CCITT N 107) signal. The DSR signal has been removed as
it is usually connected to DTR in most systems.
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Note!
UART1 signal levels do not match standard RS232 (V.28) levels. The
relationship between the levels is shown in the table below.
RS232 level
RD, TD
RTS, CTS, DTR, DCD, RI
CMOS level
<– 3V
>+3V
1
0
OFF
ON
>1.93V
<0.80V
Conversion between the module CMOS levels and RS232 levels can be
achieved using a standard interface IC, such as the Maxim Integrated
Products MAX3237.
2.8.2 Serial Data Signals - RD, TD
The default baud rate is 9.6kbits/s, however higher bit rates of up to
460 kbits/s are supported, set by an AT command. UART1 starts at a
rate of 9.6kbits/s in standard AT command mode. The module also
supports GSM 07.10 multiplexing protocol and starts when the
appropriate command is sent.
Serial Data From Module (RD)
RD is an output signal that the module uses to send data via UART1 to
the application.
Parameter
Limit
Application load resistance
≥100kΩ
Application load capacitance
<100pF
Serial Data To Module (TD)
TD is an input signal, used by the application to send data via UART1
to the module.
Parameter
Limit
Application driving impedance
Input capacitance
<100Ω
<100pF
Input resistance
<100Ω in series, with 100kΩ to DGND
2.8.3 Control Signals - RTS, CTS, DTR, DCD, RI
UART1 control signals are active low and need a standard interface IC,
such as the MAX3237, to generate standard RS232 levels.
UART1 converted signals, together with DGND, RD and TD form a
9-pin RS232 data port.
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RTS and CTS are capable of transmitting at 1/10th of the data
transmission speed for data rates up to 460kbit/s (byte-oriented flow
control mechanism).
Note!
When hardware flow control is not used in communications between
the application and the module, RTS and CTS must to be connected to
each other at the module.
Switching times for RTS and CTS
The table below shows the switching times.
Parameter
Limit
Time from Low to High level
Time from High to Low level
<2µs
<2µs
Request to Send (RTS)
Used to condition the DCE for data transmission. The default level is
high by internal pull up.
The application must pull RTS low to enable data transmission from the
module. Similarly, the module asserts CTS low, indicating it is ready to
receive data transmission from the host.
Parameter
Limit
Application driving impedance
Input capacitance
<100Ω
<2nF
Input resistance (pull-up)
100kΩ to VCC
Clear To Send (CTS)
CTS is asserted by the DCE to indicate that the host (DTE) may transmit
data. When CTS is high, the host (DTE) is not permitted to transmit
data.
The table below shows the load characteristics for this signal.
Parameter
Limit
Application load capacitance
Application load resistance
<500pF
≥1MΩ
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Data Terminal Ready (DTR)
DTR indicates that the DTE is ready to receive data. It also acts as a
hardware ‘hang-up’, terminating calls when switched high. The signal
is active low. You can define the exact behaviour of DTR with an AT
command.
Data Carrier Detect (DCD)
DCD indicates that the DCE is receiving a valid carrier (data signal)
when low.
Ring Indicator (RI)
RI indicates that a ringing signal is being received by the DCE when
low. You can define the exact behaviour of RI with an AT command.
Data Set Ready (DSR)
No DSR signal is provided. Use any DGND connection for this
functionality.
2.8.4 UART2 - TD2, RD2
UART 2 consists of a full duplex serial communication port with
transmission and reception lines.
This communication port works in a mode called Operation and
Maintenance.
Operation and Maintenance mode works in combination with the
SERVICE signal. Two events are possible if the SERVICE signal is
active when the module is turned on. These are:
• the module is reprogrammed if UART2 is connected to a computer
running Sony Ericsson update software;
• the module enters logging mode and sends data to UART2 if no
reprogramming information is received.
Timing and electrical signals characteristics are the same as for
UART1, TD and RD.
Transmitted Data 2 (TD2)
TD2 is used by the application to send data to the module via UART2.
It has the same electrical characteristics as TD.
Received Data 2 (RD2)
RD2 is used to send data to the application via UART2. It has the same
electrical characteristics as RD.
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2.8.5 UART3 - TD3, RD3 (designated for future use)
UART3 is a full duplex serial communication port with transmission
and reception lines. It has the same timing and electrical signal
characteristics as UART1, TD and RD.
Transmitted Data 3 (TD3)
TD3 is used by your application to send data to the module via UART3.
Received Data 3 (RD3)
RD is used to send data to your application via UART3.
2.9 SIM Card Related Signals
Pin
15
Signal
SIMVCC
Dir
Description
-
SIM card power supply
SIM card presence
SIM card reset
16
17
19
18
SIMPRESENCE
SIMRST
I
O
O
SIMCLK
SIM card clock
SIMDATA
I/O SIM card data
These connections allow you to communicate with the SIM card holder
in you application.
Note!
The distance between the SIM card holder and the module can be up to
25cm.
This SIM interface allows the use of 3V and 5V SIM cards. By default
it works on 3V levels but will automatically switch to 5V, if a 5V SIM
card is fitted.
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SIM voltage levels, as shown in the following table, are dependent on
the type of SIM card detected by the module.
Signal
Parameter
Mode
Min.
Typ.
Max.
Unit
3V
5V
3V
5V
3V
5V
3V
5V
3V
5V
3V
5V
3V
5V
2.7
4.5
2.1
3.5
0
3.0
5.0
3.3
5.5
3.0
5.0
0.9
1.5
3.0
5.0
0.2
0.2
3.0
5.0
0.35
0.3
V
V
V
V
V
V
V
V
V
V
V
V
V
V
SIMVCC
SIM supply voltage
High Level Input
voltage (VIH)
SIMDAT
SIMDAT
SIMDAT
SIMDAT
Low Level Input
voltage (VIL)
0
2.7
4.7
0
High Level Output
voltage (VOH
)
Low Level Output
voltage (VOL
)
0
2.4
4.4
0
High Level Output
voltage (VOH
SIMCLK
SIMRST
)
Low Level Output
voltage (VOL
SIMCLK
SIMRST
)
0
2.9.1 SIM Detection - SIMPRESENCE
SIMPRESENCE is used to determine whether a SIM card has been
inserted into or removed from the SIM card holder. You should
normally wire it to the “card inserted switch” of the SIM card holder,
but different implementations are possible.
When left open, an internal pull-up resistor maintains the signal high
and means “SIM card missing” to the module. When pulled low the
module assumes a SIM card is inserted.
SIMPRESENCE is a Digital 2.75 CMOS input with the following
electrical characteristics.
Parameter
Min.
Typ.
Max.
Units
Pull-up resistance (at 2.75 V)
100
kΩ
V
Low Level Input voltage (SIM inserted)
High Level Input voltage (SIM missing)
0.80
2.75
>1.93
V
Note!
To meet regulatory approvals SIMPRESENCE must be implemented.
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2.10 Service/Programming
Pin
Signal
Dir
Description
58
SERVICE
I
Flash programming voltage
When the SERVICE input signal is active the module will:
• be reprogrammed if data is received through UART2 from a
computer running Sony Ericsson reprogramming software;
• or it will output logging data on UART2.
The electrical characteristics are given below. The signal reference is
DGND.
SERVICE Voltage (V)
Mode
Drive Capacity
Min.
Typ.
Max.
Normal Operation
0.8
-
Service/enable
programming
1.9
2.75
13.6
>1mA
2.11 Buzzer
Pin
Signal
Dir
Description
31
BUZZER
O
Buzzer output from module
Connecting the BUZZER signal to an inverting transistor-buffer
followed by a piezoelectric transducer enables the module to play pre-
programmed melodies or sounds.
2.12 LED
Pin
Signal
Dir
Description
33
LED
O
LED Output from module
The LED states shown below, are hard coded.
LED indication
Operational status
No indication
Green, steady
Green, blinking
No power or in the OFF state
Power on, not connected to a network
Power on, connected to a network
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The following circuit should be used to connect an LED.
220
VIO
GM47
2k2
LED
BC817
10k
DGND
Figure 2.8 Electrical connections for the LED
2.13 General Purpose Digital I/O Ports
Pin
I/O port
signal
Default
signal
Description
21
22
23
24
37
32
36
IO1
-
Programmable Input/Output 1
Programmable Input/Output 2
Programmable Input/Output 3
Programmable Input/Output 4
Programmable input 5/Data Terminal Ready
Programmable output 5
IO2
-
IO3
-
IO4
-
IN5
DTR
-
OUT5
OUT6
RI
Programmable Output 6/Data Carrier
Detect
38
OUT7
DCD
Programmable Output 7/Ring indicator
Signals which have an entry in the Default Signal column in the above
table are multiplexed. Their operation depends on AT commands.
The following table gives you the input impedance. These values only
apply when the signals are configured as input signals.
Parameter
Min.
Typ.
Max.
Units
Input impedance (IO1 - IO4) (pull-up)
Input impedance (IN5)
20
39
100
kΩ
100
kΩ
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2.14 General Purpose Analogue I/O Ports
Pin
Signal
Dir
Description
20
26
27
28
DAC
O
Digital to analogue conversion output
Analogue to digital conversion input 1
Analogue to digital conversion input 2
Analogue to digital conversion input 3
ADC1
ADC2
ADC3
I
I
I
The module is able to convert digital to analogue signals and vice versa.
2.14.1 Digital to Analogue Converter - DAC
The DAC is an 8-bit converter. Conversion takes place when an AT
command is sent to the module. The module sends the resulting
analogue value to the DAC pin.
DAC output electrical characteristics are given in the following table.
Parameter
Limit
Units
Resolution
8
Bits
V
a
Output voltage for code = 0
(2.75 x 0.05) ± 0.05
Output voltage for code = 255
Nominal step size
V
(2.75 x 0.95) ± 0.05
mV
mV
(2.75 x 0.9)/256
b
≤ ± 0.5
Absolute error
Output wide-band noise and clock
feed-through 0-1.1MHz
≤0.5
mV
rms
Power-supply rejection ratio 50Hz - 10kHz
≥40
dB
ms
c
≤2 (Load A)
Conversion rate ± 0.5LSB
ms
≤50 (Load B)
Output buffer impedance when disabled
Output current source or sink
≥50
≥1
kΩ
mA
mA
Current consumption (active)
≤1.0
a. Tolerance on this internal voltage is ±5%
b. Referred to the ideal conversion characteristic.
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DAC
100 - 200pF
100k
Load A
DGND
DAC
10nF
1nF
Load B
1k
DGND
Figure 2.9 DAC loads
2.14.2 Analogue to Digital Converters 1, 2 and 3 - ADCx
The ADC is an 8-bit converter. An analogue value applied to any of the
ADC pins is converted and stored in a register inside the module. When
the appropriate AT command is received by the module, the digital
value stored in the register is read.
ADC electrical characteristics are shown in the table below.
Parameter
Min.
Max.
Units
Resolution
8
0
8
Bits
V
a
Input voltage for 0000 0000 word
0.01 x 2.75
Input voltage for 1111 1111 word
V
0.99 x 2.75
2.75
Differential Non-Linearity (DNL)
Overall Non-Linearity (INL)
Absolute accuracy
±0.75
±0.60
±1.5
LSB
LSB
LSB
MΩ
mA
Input impedance
1
Average supply current
(continuous conversion)
1
External source impedance
50
kΩ
a. Tolerance on this internal voltage is ±5%
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2.15 External I 2C Serial Control Bus
2
Note!
The I C bus is currently not supported by the software
Pin
29
30
Signal
SDA
Dir
I/O
O
Description
2
I C serial data
2
SCL
I C serial clock
2
The external I C bus consists of two signals, SDA and SCL. This bus
2
is isolated from the module’s internal I C bus to ensure proper
2
operation of the module, even if the external I C bus is damaged.
The electrical characteristics are shown below.
Parameter
Min.
81.25
1.2
Typ.
Max.
Units
kHz
µs
2
400
Frequency I C CLK
2
High or low I C CLK
2
308
308-
1230
ns
Delay time after falling edge of I C
CLK
2
0
ns
Hold time after falling edge of I C
CLK
2
400
kHz
µs
Frequency I C CLK
2
1.2
High or low I C CLK
2
100
ns
Delay time after falling edge of I C
CLK
2
0
ns
Hold time after falling edge of I C
CLK
2.16 TX_ON - Burst Transmission
Pin
Signal
Dir
Description
GSM module to transmit
35
TX_ON
O
Burst transmission is the time when a GSM transceiver unit is
transmitting RF signals. TX_ON indicates the module is going into
transmission mode.
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2.17 Real Time Clock
Pin
Signal
Dir
Description
25
VRTC
-
Voltage for the Real Time Clock
The Real Time Clock (RTC) provides the main microprocessor with a
time-of-day calendar and alarm, and a one-hundred-year calendar. It’s
accuracy is shown in the table below
Parameter
Min.
Typ.
Max.
Units
RTC accuracy
20 (52)
40 (104)
ppm (s/month)
The Real Time Clock operates in two modes when connected to a
separate power supply:
• RTC normal mode: the module is in ON or OFF mode and it is
supplied with power (VCC is applied).
• RTC back-up mode: VCC is disconnected and the RTC is
maintained by a separate backup power supply connected to the
Backup power is provided by a capacitor, golden-capacitor or battery in
your application and must be connected to the VRTC pin. During RTC
normal operation, the back up source will be charged.
In back-up mode, the back-up source must provide enough power for
RTC operation. Refer to the table for the amount of current required.
The following table shows voltage characteristics for both modes.
Parameter
Min.
Typ.
Max.
Units
Supply Voltage RTC (normal mode -
charging the capacitor)
1.6
1.8
2.0
V
Supply Voltage RTC (back-up mode -
Capacitor provides the current)
1.0
1.8
5.0
2.0
V
Current drawn
10.0
µA
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3. Antenna Connector
The module’s antenna connector allows transmission of the radio
frequency (RF) signals from the module to an external customer-
supplied antenna. The connector is a micro-miniature coaxial MMCX
surface mounted component. A number of suitable MMCX type,
mating plugs are available from the following manufacturers;
• Amphenol;
• Suhner;
• IMS Connector Systems.
The electrical characteristics of the antenna interface are shown below.
Parameter
Limit
Description
Nominal impedance
50Ω
2 Watt peak (Class 4)
1 Watt peak (Class 1)
Better than –102dBm
Better than –102dBm
Extended GSM900
GSM1800
Output Power
Extended GSM900
GSM1800
Static Sensitivity
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4. Hints for Integrating the Module
This chapter gives you advice and helpful hints on how to integrate the
GM47 into your application from a hardware perspective.
Please read and consider the information under the following headings
before starting your integration work:
• Safety advice and precautions.
• Installation of the module.
• Antenna.
4.1 Safety Advice and Precautions
4.1.1 General
• Always ensure that use of the module is permitted. The module may
present a hazard if used in proximity to personal medical electronic
devices. As a rule, the module must not be used in hospitals, airports
or planes.
• You are responsible for observing your country’s safety standards,
and where applicable the relevant wiring rules.
• Never use the module at a gas station, refuelling point, blasting area
or in any other environment where explosives may be present.
• Operating the module close to other electronic devices, such as
antennas, television sets, and radios may cause electromagnetic
interference.
• Never try to dismantle the module yourself. There are no
components inside the module that can be serviced by the user. If
you attempt to dismantle the module, you may invalidate the
warranty.
• To protect the power supply cables and meet the fire safety
requirements, it is recommended that the electrical circuits are
supplied with a power regulator. The power regulator should be
placed as close to the terminals of the power supply as possible.
• Do not connect any incompatible component or product to the
GM47. Note, Sony Ericsson does not warrant against defects, non-
conformities or deviations caused thereby.
4.1.2 SIM Card
• Before handling the SIM card in your application, ensure that you
are not charged with static electricity. Use proper precautions to
avoid electrostatic discharges. The module must be switched off
before the SIM card is installed in your application.
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• When the SIM card hatch is opened, the SIM card connectors lie
exposed under the SIM card holder. CAUTION: Do not touch these
connectors! If you do, you may release an electrical discharge that
could damage the module or the SIM card.
• When designing your application, the SIM card’s accessibility
should be taken into account. We always recommend that you have
the SIM card protected by a PIN code. This will ensure that the SIM
card cannot be used by an unauthorized person.
4.1.3 Antenna
• If the antenna is to be mounted outside, consider the risk of
lightning. Follow the instructions provided by the antenna
manufacturer.
• Never connect more than one module to a single antenna. The
module can be damaged by radio frequency energy from the
transmitter of another module.
• Like any mobile station, the antenna of the module emits radio
frequency energy. To avoid EMI (electromagnetic interference), you
must determine whether the application itself, or equipment in the
application’s proximity, needs further protection against radio
emission and the disturbances it might cause. Protection is secured
either by shielding the surrounding electronics or by moving the
antenna away from the electronics and the external signals cable.
• The module and antenna may be damaged if either come into contact
with ground potentials other than the one in your application.
Beware, ground potential are not always what they appear to be.
• In the final application, the antenna must be positioned more than
20cm away from human bodies. When this rule cannot be applied,
the application designer is responsible for providing the SAR
measurement test report and declaration.
4.2 Installation of the Module
4.2.1 Where to Install the Module
There are several conditions which need to be taken into consideration
when designing your application as they might affect the module and its
function. They are:
Environmental Conditions
The module must be installed so that the environmental conditions
stated in the Technical Data chapter, such as temperature, humidity and
vibration are satisfied. Additionally, the electrical specifications in the
Technical Data section must not be exceeded.
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Signal Strength
The module has to be placed in a way that ensures sufficient signal
strength. To improve signal strength, the antenna can be moved to
another position. Signal strength may depend on how close the module
is to a radio base station. You must ensure that the location at which you
intend to use the module, is within the network coverage area.
Degradation in signal strength can be the result of a disturbance from
another source, for example an electronic device in the immediate
vicinity. More information about possible communication disturbances
can be found in section 4.3.5, page 74.
When an application is completed, you can verify signal strength by
issuing the AT command AT+CSQ. See “AT+CSQ Signal Strength”,
Tip!
Before installing the module, use an ordinary mobile telephone to check
a possible location for it. In determining the location for the module and
antenna, you should consider signal strength as well as cable length
Connection of Components to GM47
The integrator is responsible for the final integrated system. Incorrectly
designed or installed, external components may cause radiation limits to
be exceeded. For instance, improperly made connections or improperly
installed antennas can disturb the network and lead to malfunctions in
the module or equipment.
Network and Subscription
• Before your application is used, you must ensure that your chosen
network provides the necessary telecommunication services.
Contact your service provider to obtain the necessary information.
• If you intend to use SMS in the application, ensure this is included in
your (voice) subscription.
• Consider the choice of the supplementary services described in
4.2.2 How to Install the Module
Power Supply
• Use a high-quality power supply cable with low resistance. This
ensures that the voltages at the connector pins are within the allowed
range, even during the maximum peak current. An electrolytic
capacitor should be placed close to the power supply pins of the
module to supply the peak currents during burst transmission. See
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Grounds
A ground connection is provided at the mounting hole next to the RF
point to the DGND pins of the module by the shortest, low-impedance
path possible. The purpose of this connection is to allow any ESD
picked up by the antenna to bypass the module’s internal ground path.
Note!
Note!
It is recommended that you use a cable with a maximum resistance of
5mΩ for the ground connection.
AGND and DGND are connected at a star point inside the module. They
must not be joined together in your application.
Audio
Use a coupling capacitor in ATMS line if the application does not use
the module’s bias voltage. See also “Figure 2.3 Microphone
Software Upgrade
To upgrade the software, the system connector must be accessible in
your application. The pins SERVICE, TD, RD and the power signals
are used for this purpose. Please contact customer support for more
details.
4.3 Antenna
4.3.1 General
The antenna is the component in your system that maintains the radio
link between the network and the module. Since the antenna transmits
and receives electromagnetic energy, its efficient function will depend
on:
• the type of antenna (for example, circular or directional);
• the placement of the antenna;
• communication disturbances in the vicinity in which the antenna
operates.
In the sections below, issues concerning antenna type, antenna
placement, antenna cable, and possible communication disturbances are
addressed.
In any event, you should contact your local antenna manufacturer for
additional information concerning antenna type, cables, connectors,
antenna placement, and the surrounding area. You should also
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determine whether the antenna needs to be grounded or not. Your local
antenna manufacturer might be able to design a special antenna suitable
for your the application.
4.3.2 Antenna Type
Make sure that you choose the right type of antenna for the module.
Consider the following requirements:
• the antenna must be designed for the dual frequency bands in use:
EGSM/GSM900/1800 for the GM47 and
GSM850/1900 for the GM48;
• the impedance of the antenna and antenna cable must be 50Ω;
• the antenna output-power handling must be a minimum of 2W;
• the VSWR value should be less than 3:1 to avoid damage to the
module.
4.3.3 Antenna Placement
The antenna should be placed away from electronic devices or other
antennas. The recommended minimum distance between adjacent
antennas, operating in a similar radio frequency band, is at least 50cm.
If signal strength is weak, it is useful to face a directional antenna at the
closest radio base station. This can increase the strength of the signal
received by the module.
The module’s peak output power can reach 2W. RF field strength varies
with antenna type and distance. At 10cm from the antenna the field
strength may be up to 70V/m and at 1m it will have reduced to 7V/m.
In general, CE-marked products for residential and commercial areas,
and light industry can withstand a minimum of 3V/m.
4.3.4 The Antenna Cable
Use 50Ω impedance low-loss cable and high-quality 50Ω impedance
connectors (frequency range up to 2GHz) to avoid RF losses. Ensure
that the antenna cable is as short as possible.
The Voltage Standing-Wave Ratio (VSWR) may depend on the
effectiveness of the antenna, cable and connectors. In addition, if you
use an adapter between the antenna cable and the antenna connector, it
is crucial that the antenna cable is a high-quality, low-loss cable.
Minimize the use of extension cables, connectors and adapters. Each
additional cable, connector or adapter causes a loss of signal power.
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4.3.5 Possible Communication Disturbances
Possible communication disturbances include the following:
• Noise can be caused by electronic devices and radio transmitters.
• Path-loss occurs as the strength of the received signal steadily
decreases in proportion to the distance from the transmitter.
• Shadowing is a form of environmental attenuation of radio signals
caused by hills, buildings, trees or even vehicles. This can be a
particular problem inside buildings, especially if the walls are thick
and reinforced.
• Multi-path fading is a sudden decrease or increase in the signal
strength. This is the result of interference caused when direct and
reflected signals reach the antenna simultaneously. Surfaces such as
buildings, streets, vehicles, etc., can reflect signals.
• Hand-over occurs as you move from one cell to another in the GSM
network. Your mobile application call is transferred from one cell to
the next. Hand-over can briefly interfere with communication and
may cause a delay, or at worst, a disruption.
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5. TECHNICAL DATA
5. Technical Data
Mechanical Specifications
Maximum length
Maximum width
Maximum thickness
50mm
33mm
7.15mm
(excluding connector pins and
top of antenna connector)
Weight
18.5g
Power supply voltage, normal operation
Voltage
Ripple
3.6V nominal (3.4V - 4.0V)
<100mV @ 200kHz; <20mV @ >200kHz
Voltage must always stay within a normal operating range, ripple included
Voice/CSD: <250mA (<2A peak)
Data (GPRS 4+1); <350mA (<2A peak)
Power consumption
Idle mode: <5mA
Switched off: <100µA
Radio specifications
Frequency range
GM47: EGSM 900MHz and 1800MHz (dual band)
GM48: GSM 850MHz and 1900MHz (dual band)
GM47: 900MHz, Class 4, 2W; 1800MHz Class 1, 1W
GM48: 850MHz, Class 5, 0.8W; 1900MHz Class 1, 1W
Maximum RF output
power
Antenna impedance 50Ω
SIM card
3 V or 5 V
Support of external SIM card
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Environmental specifications
Operating temperature
range (full specification)
-25°C to +55°C
-30°C to +85°C
-40°C to +85°C
95% at +40°C
Operating temperature
range (working)
Storage temperature
range
Maximum relative
humidity
Stationary vibration,
sinusoidal
Displacement: 7.5mm
Acceleration amplitude: 20m/s² and 40m/s²
Frequency range: 2-8Hz, 8-200Hz, 200-500Hz
Stationary vibration,
random
Acceleration spectral density (m²/s²):
0.96, 2.88, 0.96
Frequency range:
5-10Hz, 10-200Hz, 200-500Hz, 60min/axis
Non-stationary vibration,
including shock
Shock response spectrum I, peak acceleration:
3 shocks in each axis and direction;
300m/s², 11ms
Shock response spectrum II, peak acceleration:
3 shocks in each axis and direction;
1000m/s², 6ms
Bump
Acceleration: 250m/s²
1.2m
Free fall transportation
Rolling pitching
transportation
Angle: ±35degrees; period: 8s
Static load
10kPa
Low air pressure/high air
pressure
70kPa/106kPa
Data Storage
SMS storage capacity
40 in ME
In addition, the unit can handle as many
SMS as the SIM can store
Phone book capacity
100
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1. Introduction to AT Commands
1.1 Overview
AT commands, issued from a computer in your application are used to
control and implement the functions of the module.
Using AT commands, the following actions are possible:
• Control of DCE
• GPRS
• Call control
• Supplementary Service
• SIM application tool kit
The GM47 contains a large number of Ericsson-specific commands in
addition to those implemented in accordance with the GSM and ITU-T
recommendations. These commands are provided to enhance the
functions of the module. The Ericsson-specific commands are identified
by the asterisk that precedes the command (see the syntax description
provided below).
Note!
Only commands that are listed in the Integrator’s Manual are supported
unless otherwise stated. Other commands may be listed by the module
but these are only included for historical or legacy reasons.
1.2 Syntax Description
This section provides a brief description of the syntax used for the
GM47, AT command set. See the ITU-T recommendation V.25ter for
additional information.
1.2.1 Conventions
In this manual, the following conventions are used to explain the AT
commands.
<command>
<parameter>
The name of the command that is to be entered.
The parameter values that are defined for a certain
command.
<CR>
<LF>
The command line is terminated by the Carriage
Return (or Enter key) or ATS3 command.
Line feed character or ATS4 command.
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< >
[ ]
The term enclosed in angle brackets is a syntactical
element. The brackets do not appear in the command
line.
Square brackets are used to indicate that a certain item
is optional. For example, sub-parameters of a
command or an optional part of a response. The
brackets do not appear in the command line.
Value
The default values of the supported parameters are
indicated by using bold text when presenting the
value.
• Other characters, including ‘?’, ‘=’, parenthesis, etc., appear in
commands and responses as written.
• The final result codes OK, ERROR, +CME ERROR: <err> and
1.3, Error Codes) are not listed under “Possible Responses” for each
AT command.
• OK and ERROR are listed if these are the only possible responses.
1.2.2 AT Command Syntax
The AT standard is a line-oriented command language. Each command
is made up of the following three elements:
• the prefix;
• the body;
• the termination character.
The prefix consists of the letters “AT”, which are derived from the first
two letters of the word attention. The body is made up of the command,
the parameter, and if applicable the associated values.
Commands may be combined in the same command line. Spaces
between the individual bodies are ignored.
Basic Syntax Command
The format of basic syntax commands is as follows:
AT<command>[=][<parameter>]<CR>
Example! ATL=0<CR> (sets the volume of the speaker)
Additional commands may follow a command on the same command
line without any character being required for separation. For the
command D parameters, see the description for the command in
question.
A version of the basic syntax is:
AT<command><parameter>
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1. INTRODUCTION TO AT COMMANDS
Extended Syntax Command
• AT+<command>= [<parameter>]
• AT*<command>=[<parameter>]
Example! AT+CFUN=0<CR> (powers down the module)
If several values are included in the command, they are separated by
commas. It is also possible to enter commands with no values.
Additional commands may follow an extended syntax command on the
same command line if a semicolon (; IRA 3B) is inserted after the
preceeding extended command as a separator.
Read Command Syntax
The read command is used to check the current values of
parameters. Type ‘?’, after the command line:
• AT+<command>?
• AT*<command>?
• AT<command>?
Example! AT+CSCS?<CR> (show current character set)
<CR>“IRA”<CR>(information text response)
<CR>OK<CR>(final result code response)
Test Command Syntax
The test command is used to test whether the command has been
implemented or to give information about the type of subparameters it
contains. Type ‘?’, after the command line:
• AT+<command>=?
• AT*<command>=?
Example! AT+CPAS=?<CR> (shows supported values for the response
parameters)
<CR>CPAS: (0, 3, 4, 129, 130, 131)<CR> (supported values)
<CR>OK<CR> (final result code)
If the indicated <parameter> is not recognized, the result code ERROR
is issued.
Note!
Possible responses are indicated both as <command>:(list of
supported<parameter>) and (in most cases) the actual range of the
parameter values.
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1.2.3 AT Response Syntax
The default mode response shown below, is in text mode. See the
command V for further details.
Possible formats for the result codes are:
• Basic format result code, such as OK. The Basic result code also has
a numerical equivalent.
• Extended format result code, prefixed with a plus sign (+) or an
asterisk (*):
– AT+<command>: <parameter >
– AT*<command>: <parameter>
where the <parameter> is the result code value, note that a single
space character separates the colon character from the <parameter>.
If several values are included in the result code, they are separated by
commas. It is also possible that a result code has no value. The
extended syntax result codes have no numerical equivalent. They are
always issued in alphabetical form.
• Information text response may contain multiple lines separated by
<CR>. The TE detects the end of informational text responses by
looking for a final result code response, such as OK.
There are two types of result code responses as outlined below:
Final Result Code
A final result code indicates to the TE that execution of the command
is completed and another command may be issued.
• If you type an implemented AT command, you should get the result
code OK.
• If you type an AT command that is not implemented, or which had
the wrong parameter or syntax, you will get an error result code. It is
ERROR or, for example, +<command> ERROR followed by an
error code.
Final result codes are:
Value
General meaning
OK
Command executed, no errors
Invalid command or command line too long
No dialling possible, wrong mode
Remote station busy
ERROR
NO DIALTONE
BUSY
NO ANSWER
NO CARRIER
Connection completion time-out
Link not established or disconnected
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1. INTRODUCTION TO AT COMMANDS
Unsolicited Result Code
Unsolicited result codes indicate the occurrence of an event not directly
associated with a command being issued from the TE.
1.3 Error Codes
1.3.1 +CME ERROR (Mobile Equipment Error Code)
This final result code is similar to the regular ERROR result code. If
+CME ERROR: <err> is the result code for any of the commands in a
command line, none of the commands in the same command line will
be executed (neither ERROR nor OK result code shall be returned as a
result of a completed command line execution). The format of <err> can
be either numerical or alphabetical, and is set with the +CMEE
command.
The table below provides the numerical values for the parameter <err>.
<err>
Description Syntax
0
Phone failure
1
No connection to phone
Phone -adaptor link reserved
Operation not allowed
Operation not supported
PH-SIM PIN required
SIM not inserted
2
3
4
5
10
11
12
13
14
15
16
17
18
20
21
22
23
24
25
SIM PIN required
SIM PUK required
SIM failure
SIM busy
SIM wrong
Incorrect password
SIM PIN2 required
SIM PUK2 required
Memory full
Invalid index
Not found
Memory failure
Text string too long
Invalid characters in text string
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<err>
Description Syntax
26
Dial string too long
27
Invalid characters in dial string
No network service
30
31
Network time-out
32
Network not allowed - emergency calls only
100
101- 255
Unknown
Reserved by ETS
1.3.2 +CMS ERROR (Message Service Failure Result Code)
This final result code indicates an error related to mobile equipment or
to the network. The operation is similar to the ERROR result code.
None of the following commands in the same command line will be
executed. Neither ERROR nor OK result code will be returned. ERROR
is returned normally when an error is related to syntax or invalid
parameters. Nevertheless, it always appears when a command fails.
The syntax is as follows:
+CMS ERROR: <err>
Values for the <err> parameter are described in the following table.
<err>
Description
0 - 127
128 - 255
300
GSM 04.11 Annex E-2 values
GSM 03.40 subclause 9.2.3.22 values
ME failure
301
SMS service of ME reserved
Operation not allowed
Operation not supported
Invalid PDU mode parameter
Invalid text mode parameter
SIM not inserted
302
303
304
305
310
311
SIM PIN required
312
PH-SIM PIN required
SIM failure
313
314
SIM busy
315
SIM wrong
316
SIM PUK required
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<err>
Description
317
318
320
321
322
330
331
332
340
500
- 511
512-
SIM PIN2 required
SIM PUK2 required
Memory failure
Invalid memory index
Memory full
SMSC address unknown
No network service
Network time-out
No +CNMA acknowledgment expected
Unknown error
Other values in range 256 - 511 are reserved
Manufacturer specific
1.4 Examples on How to Use the AT Commands
For many of the more complicated commands, examples are provided
after the command’s description. Always refer to the detailed
description of the command in question to check valid parameter
values, AT command syntax and Response syntax.
1.5 SMS Text Mode
SMS text mode allows users to send SMSs without having to
understand how PDUs are constructed. This section describes how to
carry out basic operations in text mode and explains the steps that need
to be taken.
Basic transmission of SMS
A script which sets the module up is shown below:
AT+CSDH=1
Enable the use of text mode parameters
OK
AT+CSMP=17,167
Set text mode parameter
OK
AT+CMGF=1
OK
Switch the module to text mode
AT+CMGS=“07787154042”
Sending an SMS
> Test SMSÎ
h
The text must be ended, as in PDU mode, with
a control-Z character
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+CMGS: 204
sdfjldjfl
OK
Confirmation that the SMS has been sent
successfully
Note the following points:
1. Once the CSDH, CSMP and CMGF commands have been carried
out they will not need to be initialized for this session.
2. These parameters are saved in NVRAM using the &W command.
Notification of SMS
New message indications are similar to the PDU mode as shown below:
AT+CNMI=3,1
OK
+CMTI: “SM”,2
AT+CNMI=3,2
OK
+CMT: “+447747008670”,“Matt
L”,“02/11/19,09:58:42+00”,145,36,0,0,“+447785016005”
,145,8
Test sms
Please note that currently the CMT indication does not have a CR/LF
appended to the end of the SMS data. If the SMS contains one it will be
displayed. Otherwise the application will need to recognize the CMT
line and the length character, in this case 8 and count the characters into
its input buffer.
Reading messages
Reading messages is performed as in PDU mode.
AT+CMGR=2
+CMGR: “REC UNREAD”,“+447747008670”,“Matt L”,“02/11/
19,09:57:28+00”,145,36,0,0,“
+447785016005”,145,8
Test sms
OK
Listing messages
In PDU mode numbers are used as parameters. In text mode letters are
used instead and these must be upper case as the module does not accept
lower case commands. See the example below:
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AT+CMGL=“ALL”
+CMGL: 1,“REC READ”,“+447747008670”,“Matt L”,“02/10/
21,10:07:23+04”,145,4
Test
+CMGL: 2,“REC READ”,“+447747008670”,“Matt L”,“02/11/
19,09:57:28+00”,145,8
Test sms
+CMGL: 3,“REC UNREAD”,“+447747008670”,“Matt L”,“02/11/
19,09:58:06+00”,145,8
Test sms
OK
1.6 GPRS Communication
To initiate a session with the network you need to setup a ‘data account’
on the module, using the AT+CGDCONT command. You need to
specify the correct Access Point Name (APN), which you get from your
service provider. The command below sets up the data account to access
Vodafone’s internet server.
AT+CGDCONT=1,“IP”,“internet”
After this you need to use the ATD command to make a GPRS call. The
example below dials into the network using account number 1 (the
GM47 supports up to 10):
ATD*99***1#
If the module is able to connect to the APN it will return a CONNECT.
At this point PPP/IP packets should be sent by the application, to
negotiate an IP address. The easiest way of doing this whole thing is to
create a windows dial up networking session with the dial string
*99***1# after creating the data account on the module.
It is not possible to call a mobile station using GPRS at present. The
reason for this is that unless a PDP context has been setup it has not been
assigned an IP address by the GGSN/DHCP server and as a result it
cannot be addressed other than through its phone number (defeating the
object of using IP). This is specified in GSM 7.60 or 3GPP 27.060.
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2. Call Control
2.1 AT+CPIN
PIN Control
2.2 ATA
Answer Incoming Call
Description
Command
Possible Responses
Answer an incoming
call
ATA
• CONNECT
• CONNECT <text>
• NO CARRIER
• ERROR
• OK
Answer and initiate connection to an incoming call.
<text>
Description
19200
9600
4800
2400
Connected with data bit rate of 19200 bits/s (HSCSD)
Connected with data bit rate of 9600 bits/s
Connected with data bit rate of 4800 bits/s
Connected with data bit rate of 2400 bits/s
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2.3 ATD
Dial
Description
Command
Possible Responses
• Originate a call and
dial the phone
number specified in
the command as
<dial_string>
ATD<dial_string>[;]
• CONNECT
• CONNECT <text>
• NO CARRIER
• ERROR
• NO DIAL TONE
• BUSY
or
• Do a network
detect
• OK
Dial the phone number
stored in the mobile
phone which is
located by the index
<I>
ATD>ME<I>[;]
ATD>SM<I>[;]
ATD>LD<I>[;]
• CONNECT
• CONNECT <text>
• NO CARRIER
• ERROR
• NO DIAL TONE
• BUSY
• OK
Dial the phone number
stored in the SIM card
which is located by the
index <I>
• CONNECT
• CONNECT <text>
• NO CARRIER
• ERROR
• NO DIAL TONE
• BUSY
• OK
Dial the phone number
stored in the Last
dialled number list on
the SIM card, which is
located by the index
<I>
The most recently
dialled number is
assumed to have
<I>="1"
• CONNECT
• CONNECT <text>
• NO CARRIER
• ERROR
• NO DIAL TONE
• BUSY
• OK
Redial the last phone
number dialled.
Ericsson specific
ATDL[;]
...
Used to initiate a phone connection, which may be data or voice (phone
number terminated by semicolon). The phone number used to establish
the connection will consist of digits and modifiers, or a stored number
specification.
If the dial string is followed by a semicolon this informs the phone that
the number is a voice rather than a data number.
If the dial string is omitted, and the semicolon included, the command
instructs the ME to do a network detect. If the network is available OK
is returned.
Abortability:
Aborting an ATD command is accomplished by the transmission from
the DTE to the DCE of any character. A single character shall be
sufficient to abort the command in progress; however, characters
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2. CALL CONTROL
transmitted during the first 125 milliseconds after transmission of the
termination character are ignored. This is to allow the DTE to append
additional control characters such as line feed after the command line
termination character.
<dial_string>
Description
“0 1 2 3 4 5 6 7
8 9 * # +”
Valid characters for origination
W
The W modifier is ignored but is included only for
compatibility purposes
,
The comma modifier is ignored but is included only for
compatibility purposes
T
The T modifier is ignored but is included only for
compatibility purposes
P
The P modifier is ignored but is included only for
compatibility purposes
<Final Result
Code>
Description
CONNECT
If connection is successfully established, only valid for data
connections
CONNECT
<text>
If connection is successfully established, only valid for data
connections
NO CARRIER
Unable to establish a connection or the connection
attempt was aborted by the user
ERROR
An unexpected error occurred while trying to establish the
connection
NO DIALTONE
BUSY
The mobile phone is being used for a voice call or is not
within coverage of the network
The phone number called is engaged, valid for data and
voice connections
OK
Only valid for voice connections
<text>
Description
19200
9600
4800
2400
Connected with data bit rate of 19200 bits/s (HSCSD)
Connected with data bit rate of 9600 bits/s
Connected with data bit rate of 4800 bits/s
Connected with data bit rate of 2400 bits/s
Example
ATD07747008670;
OK
AT+VTS=“4”
OK
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2.4 ATH
2.5 ATL
Hang up
Description
Command
Possible Responses
Terminate the call
ATH
• ERROR
• OK
Signals the MS to terminate an active call.
Monitor Speaker Loudness
Description
Command
Possible Responses
Request monitor
speaker loudness
ATL[<value>]
• OK
• ERROR
Show the current
setting
ATL?
L: <value>
Show if the command
is supported
ATL=?
L: (list of supported
<values>s)
Included for compatibity. No functionality
<value>
Description
0
1
2
3
4
5
6
7
8
-14dB (minimum speaker volume)
-10.5dB
-7dB
-3.5dB
0dB (nominal speaker volume)
3.5dB
7dB
10.5dB
14dB (maximum speaker volume)
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2. CALL CONTROL
2.6 ATO
Return to Online Data Mode
Description
Command
Possible Responses
Return to on-line data
mode
ATO[<value>]
• CONNECT
• CONNECT <text>
• NO CARRIER
• ERROR
Switch to the on-line data mode from the on-line command mode during
an active call. Returns ERROR when not in on-line command mode.
<value>
Description
0
Return to on-line data state from on-line command
2.7 ATP
Select Pulse Dialling
Description
Command
Possible Responses
Select pulse dialling
ATP
OK
OK
Show if the command
is supported
ATP=?
Command is ignored, and is implemented for compatibility only. It
would normally cause the next D command to use pulses when dialling
the number.
2.8 ATT
Select Tone Dialling
Description
Command
Possible Responses
Select tone dialling
ATT
OK
OK
Show if the command
is supported
ATT=?
Command is ignored, and is implemented for compatibility only. It
would normally cause the next D command to use tones when dialling
the number.
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2.9 ATX
Call Progress Monitoring Control
Description
Command
Possible Responses
Set call progress
monitoring control
ATX=[<n>] or ATX[<n>]
• OK
• ERROR
Show the current
setting
ATX?
X: <n>
Show if the command
is supported
ATX=?
X: (list of supported
<n>s)
Defines if the dial-tone detection and busy-tone detection are to be used
during a call set-up.
<n>
Description
0
Body and dial tone detection off. No line speed reported
on connection
1
2
3
4
Body and dial tone detection off. Report line speed on
connection
Busy detection on and dial tone detection off. Report line
speed on connection
Busy detect off and dial tone on. Report line speed on
connection
Busy detect and dial tone detection on. Report line
speed on connection. Default value
Note!
If there is no network available the <n> parameter will decide if “NO
DIALTONE” or “NO CARRIER” will be returned. If the call recipient
is busy, the <n> parameter will decide if “BUSY” or “NO CARRIER”
will be returned.
2.10 AT+CHUP Hang up Call
Description
Command
Possible Responses
Request hang-up
AT+CHUP
• OK
• ERROR
Show if the commands
is supported
AT+CHUP=?
• OK
• ERROR
Causes the TA to hang-up the current call of the ME.
If no call is present, but an incoming call is notified, then the incoming
call shall be rejected.
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2. CALL CONTROL
2.11 AT+CMOD Call Mode
Description
Command
Possible Responses
Request Call Mode
AT+CMOD=[<mode>]
• OK
• ERROR
Show the current
setting
AT+CMOD?
• +CMOD: <mode>
• OK
• ERROR
Show if the command
is supported
AT+CMOD=?
• +CMOD: (list of
supported
<mode>s)
• OK
• ERROR
Selects the call mode of further dialing commands (D) or for next
answering command (A). Mode can be either single or alternating. In
this ETS, terms “alternating mode” and “alternating call” refer to all
GSM bearer and teleservices that incorporate more than one basic
service (voice, data, fax) within one call.
When single mode is selected the call originating and hang-up
procedures are similar to procedures specified in ITU-T
Recommendations V.25ter, T.31 and T.32. In GSM there can be voice
followed by data (refer to GSM 02.02), alternating voice/data (refer to
GSM 02.02) and alternating voice/fax calls (refer to GSM 02.03).
Test command returns values supported by the TA as a compound
value.
Note!
+CMOD is set to zero after a successfully completed alternating mode
call. It is set to zero also after a failed answering. The power-up, factory
(&F) and user resets (Z), also set the value to zero. This reduces the
possibility that alternating mode calls are originated or answered
accidentally.
<mode>
Description
0
Single mode. Default value.
In order to avoid accidental originating or answering of
alternating calls is <mode> set to single mode in following
cases:
- after a successfully completed alternating mode call;
- after a unsuccessful answering;
- after successfully execution of the commands &F and Z
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2.12 AT+CVHU Voice Hang-Up
Description
Command
Possible Responses
Set Command
+CVHU=[<mode>]
• +CME ERROR: <err>
• OK
Show the current
setting
+CVHU?
• +CVHU: <mode>
• +CME ERROR: <err>
Show if the command
is supported
+CVHU=?
+CVHU: (list of
supported <mode>s)
Selects whether ATH or “drop DTR” causes a voice connection to be
disconnected or not. Voice connection also includes alternating mode
calls that are currently in voice mode.
Note!
When <mode>=2, this command must be viewed in conjunction with
the V.25ter command &D, or &D will be ignored.
<mode>
Description
0
“Drop DTR” ignored but OK response given. ATH
disconnects
1
2
“Drop DTR” and ATH ignored but OK response given
“Drop DTR” behavior according to &D setting. ATH
disconnects. Default value
2.13 AT+VTS
DTMF and Tone Generation
Description
Command
Possible Responses
Request transmission of
DTMF tone(s)
AT+VTS=<DTMF>
OK
ERROR
Show if the command
is supported
AT+VTS=?
OK
ERROR
This command allows the transmission of DTMF tones. These tones
may be used, for example, when announcing the start of a recording
period. The command is write only. In this profile of commands, the
command does not operate in data or fax modes of operation
(+FCLASS=0,1,2-7).
Note!
The ATD-command is used only for dialing. It is not possible to
generate arbitrary DTMF tones using the ATD command.
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Note!
The AT+VTS command is used only during a voice call.
<DTMF>
Description
ASCII
character
string
An ASCII character string with entries in the set 0-9, #, *, A-
D separated by commas. Each entry is interpreted as a
single ASCII character.
Example: The string “8,9” sends two DTMF tones, “8”
followed by “9”
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3.1 ATQ
Result Code Suppression
Description
Command
Possible Responses
Set Result Code
Suppression
ATQ[=]<value>
• OK
• ERROR
Show the current
setting
ATQ?
Q: <value>
Show if the command
is supported
ATQ=?
Q: (list of supported
<value>s)
Determines whether or not the DCE transmits result codes to the DTE.
When result codes are being suppressed, no portion of any intermediate,
final, or unsolicited result code - header, result text, line terminator, or
trailer - is transmitted.
<value>
Description
0
1
DCE transmits result codes. Default value
Result codes are suppressed and not transmitted
3.2 ATS0
Automatic Answer Control
Description
Command
Possible Responses
Automatic answer
control
ATS0=[<rcnt>]
• OK
• ERROR
Show the current
setting
ATS0?
<rcnt>
Show if the command
is supported
ATS0=?
S0: (list of supported
<rcnt>s)
Defines the automatic answering feature of the modem. A non-zero
value specifies the number of rings before the call is answered.
Note!
Call is always answered in the current fax class, regardless of whether
the incoming call is voice, data, or fax.
<rcnt>
Description
0
Disable automatic answer. Default value
1-7
Answer after the specified number of rings
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3.3 ATS2
Escape Sequence Character
Description
Command
Possible Responses
Set escape sequence
character
ATS2=[<esc>]
• OK
• ERROR
Show the current
setting
ATS2?
<esc>
Show if the command
is supported
ATS2=?
S2: (list of supported
<esc>s)
Defines the character to be used as the escape sequence character when
switching from on-line data mode to on-line command mode. The
response to the command is modified to reflect the change.
<esc>
Description
43
Escape sequence character. Default value
0 to 255
Escape sequence character
Note!
If the <esc> parameter is set to a value in the range of 128-255, the
escape sequence detection is disabled.
3.4 ATS3
Command Line Termination Character
Description
Command
Possible Responses
Set Command Line
Termination Character
ATS3=<value>
• OK
• ERROR
Show the current
setting
ATS3?
<value>
Show if the command
is supported
ATS3=?
S3: (list of supported
<value>s)
This S-parameter represents the decimal IA5 value of the character
recognised by the DCE from the DTE to terminate an incoming
command line. It is also generated by the DCE as part of the header,
trailer, and terminator for result codes and information text, along with
the S4 parameter.
The previous value of S3 is used to determine the command line
termination character for entry of the command line containing the S3
setting command. However, the result code issued uses the value of S3
as set during the processing of the command line. For example, if S3
was previously set to 13 and the command line “ATS3=30” is issued,
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the command line is terminated with a <CR> character (IA5 0/13), but
the result code issued uses the character with the ordinal value 30 (IA5
2/14) in place of the <CR>.
<value>
Description
13
Command line termination character, Default value
0 to 127
Command line termination character
3.5 ATS4
Response Formatting Character
Description
Command
Possible Responses
Set Response
Formatting Character
ATS4=<value>
• OK
• ERROR
Show the current
setting
ATS4?
<value>
Show if the command
is supported
ATS4=?
S4: (list of supported
<value>s)
This S-parameter represents the decimal IA5 value of the character
generated by the DCE as part of the header, trailer, and terminator for
result codes and information text, along with the S3 parameter (see the
description of the V parameter for usage).
If the value of S4 is changed in a command line, the result code issued
in response to that command line will use the new value of S4.
<value>
Description
10
Formatting character. Default value
Note: ASCII character 10 is equivalent to <LF>
0 to 127
Formatting character
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3.6 ATS5
Command Line Editing Character (BACKSPACE)
Description
Command
Possible Responses
Request Command
Line Editing Character
ATS5=<value>
• OK
• ERROR
Show the current
setting
ATS5?
<value>
Show if the command
is supported
ATS5=?
S5: (list of supported
<value>s)
This S-parameter represents the decimal IA5 value of the character
recognised by the DCE as a request to delete from the command line the
immediately preceding character.
<value>
Description
8
Line editing character. Default value
0 to 127
Line editing character
3.7 ATS6
Blind Dial Delay Control
Description
Command
Possible Responses
Blind dial delay control
ATS6=[<dly>]
ATS6?
OK
Show the current
setting
<dly>
Show if the command
is supported
ATS6=?
S6: (list of supported
<dly>s)
Included for compatibility. No functionality
<dly>
Description
2
Wait two seconds before blind dialling. Default value
2-255
Number of seconds to wait before blind dialling
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3.8 ATS7
Connection Completion Timeout
Description
Command
Possible Responses
Set connection
completion timeout
ATS7=[<tmo>]
• OK
• ERROR
Show the current
setting
ATS7?
<tmo>
Show if the command
is supported
ATS7=?
S7: (list of supported
<tmo>s)
Defines the maximum time allowed between completion of dialling and
the connection being established. If this time is exceeded then the
connection is aborted.
<tmo>
Description
50
Timeout value in seconds. Default value
1-255
Timeout value in seconds
3.9 ATS8
Comma Dial Modifier Delay Control
Description
Command
Possible Responses
Set Comma Dial
Modifier Delay Control
ATS8=[<dly>]
• OK
• ERROR
Show the current
setting
ATS8?
<dly>
Show if the command
is supported
ATS8=?
S8: (list of supported
<dly>s)
Included for compatibility. No functionality
<dly>
Description
2
The value of the dial modifier delay in seconds. Default value
1-255
The value of the dial modifier delay in seconds
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3.10 ATS10
Automatic Disconnect Delay Control
Description
Command
Possible Responses
Set Automatic
Disconnect Delay
Control
ATS10=[<val>]
• OK
• ERROR
Show the current
setting
ATS10?
<val>
Show if the command
is supported
ATS10=?
S10: (list of supported
<val>s)
Included for compatibility. No functionality
<val>
Description
2
Remains connected for two tenths of a second. Default value
1-254
Number of tenths of a second of delay
3.11 AT*ECAM Ericsson Call Monitoring
Description
Command
Possible Responses
Set Call Monitoring on
or off
AT*ECAM=<onoff>
• +CME ERROR: <err>
• OK
• ERROR
Show the current
setting
AT*ECAM?
• *ECAM: <onoff>
• +CME ERROR: <err>
• OK
• ERROR
Show if the command
is supported
AT*ECAM=?
• *ECAM: list of
supported <onoff>s
• +CME ERROR: <err>
• OK
• ERROR
This command activates or deactivates the call monitoring function in
the ME. When this log function is activated in the ME, the ME informs
about call events, such as incoming call, connected, hang up etc.
It is preferable that the current status shall always be sent with result
code *ECAV when activating the log function. The purpose of this is
two fold:
• to gather relevant information for the call log in a TE;
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• to make it possible for the TE to display call state information for an
ongoing call.
<onoff>
Description
0
1
The call log function is disabled (off). Default value
The call log function is enabled (on)
Unsolicited result codes:
*ECAV: <ccid>,<ccstatus>,<calltype>,[<processid>],[<exitcause>],
[<number>,<type>]
<ccid>
Description
1 to 7
Integer type. A number which uniquely defines a call in
the phone (= number of call control process). There can
not be two call id’s with the same number simultaneously.
The maximum number of call control processes are 7,
which are 5 multiparty members, one call on hold, and
one waiting call
<ccstatus>
Description
0
1
2
3
4
5
6
7
Idle
Calling (MO)
Connecting (MO)
Active (connection between A and B)
Hold
Waiting (MT)
Alerting (MT)
Busy
<calltype>
Description
1
Voice
Data
2
128
Voice2
<processid>
Description
Integer
Reported when returning to the Idle state (<ccstatus>=0)
8 = H’08 = CC (Call Control)
68 = H’44 = MM (Mobile Management)
69 = H’45 = MS (Mobile Station)
122 = H’7A = RR (Radio Resources)
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<exitcause>
Description
Integer
Exit cause according to GSM 04.08 reported when
returning to Idle state (<ccstatus> = 0)
<number>
Description
String
String type phone number of format specified by <type>.
Only valid for <ccstatus> = 1 (Calling)
<type>
Description
Type of address octet in integer format (refer to GSM
04.08, subclause 10.5.4.7)
129
145
ISDN/Telephony numbering plan, national/international
unknown. Default if no “+” in sca
ISDN/Telephony numbering plan, international number.
Default if “+” in sca.
161
ISDN/Telephony numbering plan, national number
128 to 255
Other values refer to GSM 04.08 section 10.5.4.7. Only valid
for <ccstatus> = 1 (Calling)
Examples
AT*ECAM?
*ECAM: 0
AT*ECAM=1
OK
3.12 AT*EDST
Ericsson Daylight Saving Time
Description
Command
Possible Responses
Set Daylight Saving
Time
AT*EDST=<dst>
• +CME ERROR: <err>
• OK
• ERROR
Show the current
setting
AT*EDST?
• *EDST: <dst>
• +CME ERROR: <err>
• OK
• ERROR
Show if the command
is supported
AT*EDST=?
• *EDST: (list of
supported <dst>s)
• +CME ERROR: <err>
• OK
• ERROR
This command sets the daylight saving time hours.
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Note!
This command affects the MS clock set with the AT+CCLK command.
To avoid confusion it is recommended the daylight saving time (DST)
is set with this command before setting the actual local time with
AT+CCLK.
<dst>
Description
0
1
2
Standard time
Daylight saving time, +1 hour
Daylight saving time, +2 hours
3.13 AT*EMAR
Ericsson Master Reset
Description
Command
Possible Responses
Perform a master reset
in the MS
AT*EMAR=<phone lock
code>
• +CME ERROR: <err>
• OK
• ERROR
Show if the command
is supported
AT*EMAR=?
• +CME ERROR: <err>
• OK
• ERROR
This command requests the MS to reset user data. The user data in the
MS will be reset to the default values. This command also unlocks the
MS.
<phone lock code>
Description
String
Security code (phone lock code) must be verified
before performing the master reset, see also
AT+CLCK
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3.14 AT*EPEE
Ericsson Pin Event
Description
Command
Possible Responses
Requests the MS to
inform when the PIN
code has been
inserted
AT*EPEE=<onoff>
• +CME ERROR: <err>
• OK
• ERROR
Show the current
setting
AT*EPEE?
• *EPEE: <onoff>
• +CME ERROR: <err>
• OK
• ERROR
Show if the command
is supported
AT*EPEE=?
• *EPEE: (list of
supported <onoff>s)
• +CME ERROR: <err>
• OK
• ERROR
The command requests the MS to report when the PIN code has been
inserted and accepted.
<onoff>
Description
0
Request for report on inserted PIN code is not activated
(off). Default value
1
Request for report on inserted PIN code is activated (on)
3.15 AT*ESMM Ericsson Settings Minute Minder
Description
Command
Possible Responses
Sets the Minute Minder
to on or off
AT*ESMM=<mode>
• +CME ERROR: <err>
• OK
• ERROR
Show the current
setting
AT*ESMM?
• *ESMM: <mode>
• +CME ERROR: <err>
• OK
• ERROR
Show if the command
is supported
AT*ESMM=?
• *ESMM: list of
supported <mode>s
• +CME ERROR: <err>
• OK
• ERROR
This command sets the minute minder setting to “on” or “off” in the
MS. Test command returns the <mode> value. When set to “on”, a beep
is sent to the audio output every minute.
<mode>
Description
0
1
OFF, minute minder off. Default value
ON, minute minder on
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3.16 AT+CALA Set Alarm
Description
Command
Possible Responses
Set an alarm time in
the ME
AT+CALA=<time>[,
• +CME ERROR: <err>
• OK
• ERROR
<n>[,<type>[,<text>
[,<recurr>[,<silent>]]]
]]
Show the current
setting
AT+CALA?
• +CALA:
<time1>,<n1>,<type1>,[<t
ext1>],[<recurr1>],<silent1
>[<CR><LF>+CALA:
<time2>,<n2>,<type2>,[<t
ext2>],[<recurr2>],<silent2
>[…]]+CME ERROR: <err>
• OK
• ERROR
Show if the
command is
supported
AT+CALA=?
• +CALA: (list of supported
<n>s),(list of supported
type>s),<tlength>,<rlengt
h>,(list of supported
<silent>s)
• +CME ERROR: <err>
• OK
• ERROR
The command sets an alarm time in the ME. An array of different
alarms can be set and each may be recurrent. If alarm setting fails,
ERROR: <err> is returned.
When the alarm is timed out and executed, the unsolicited result code
+CALV: <n> is always returned, even if the alarm is setup to be silent.
The alarm time is set in hours and minutes. Date, seconds and time zone
cannot be set.
The alarm function uses the ring type defined with the AT*ERIN
command.
The read command returns the list of current active alarm settings in the
ME.
Show returns the supported array index values, alarm types and
maximum length of the text strings.
<time>
Description
string type
value
Refer to the AT+CCLK command. Note! Only hours and
minutes are used i.e. date, time zone and seconds are not
used
<n>
Description
Integer type
Index identifying an active alarm
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Note!
Note!
The number of active alarms is manufacturer and product specific.
<tlength>
Description
Integer type
Maximum length of <text> parameter
The maximum length of the <text> parameter is manufacturer and
product specific.
<recurr>
Description
Format:
“<1..7>[,<1..7>
[…]]”
For setting an alarm for one or more days in the week. The
digits 1 to 7 correspond to the days in the week, Monday
(1), …, Sunday (7). Example: The string “1,2,3,4,5” may be
used for setting an alarm for all weekdays
Format:“0”
For setting an alarm for all days in the week
<rlength>
Description
Integer type
Maximum length of the <recurr> parameter
Unsolicited result codes:
+CALV: <n>
3.17 AT+CALD Alarm Delete
Description
Command
Possible Responses
Delete an alarm
AT+CALD=<n>
• +CME ERROR: <err>
• OK
• ERROR
Show if the command
is supported
AT+CALD=?
• +CALD: (list of
supported <n>s)
• +CME ERROR: <err>
• OK
• ERROR
This command removes an active alarm.
<n>
Description
Integer type
Index identifying an active alarm
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3.18 AT+CCLK Set Clock and Date
Description
Command
Possible Responses
Set the real time clock
of the ME
AT+CCLK=<time>
• +CME ERROR: <err>
• OK
• ERROR
Show the current
setting
AT+CCLK?
• +CCLK: <time>
• +CME ERROR: <err>
• OK
• ERROR
Show if the command
is supported
AT+CCLK=?
• OK
• ERROR
Sets the real time clock of the ME. If setting fails in an ME, error +CME
ERROR: <err> is returned. Read command returns the current setting
of the clock.
<time>
Description
string type
value
Format is “yy/mm/dd,hh:mm:ss±zz”, where characters
indicate year (two last digits), month, day, hour, minutes,
seconds and time zone (indicates the difference,
expressed in quarters of an hour, between the local time
and GMT; range -47...+48), e.g. 6th of May 1994, 22:10:00
GMT+2 hours reads “94/05/06,22:10:00+08”
NOTE: If the ME does not support time zone information
then the three last characters of <time> are not returned
by +CCLK?
Example
AT+CCLK?
+CCLK: “00/01/01,22:54:48+00”
OK
AT+CCLK=“19/11/02,09:30:00+00”
OK
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3.19 AT+CEER
Extended Error Report
Description
Command
Possible Responses
Request an Extended
Error Report
AT+CEER
• +CEER: <report>
• OK
• ERROR
Show if the command
is supported
AT+CEER=?
• OK
• ERROR
Causes the TA to return one or more lines of information text <report>.
Typically, the text will consist of a single line containing the failure
information given by the GSM network in text format.
<report>
Description
characters
The total number of characters, including line terminators,
in the information text shall not exceed 2041 characters.
Text shall not contain the sequence 0<CR> or OK<CR>
3.20 AT+CFUN Set Phone Functionality
Description
Command
Possible Responses
Set MS functionality
AT+CFUN=<fun>
• +CME ERROR: <err>
• OK
Show the current
setting
AT+CFUN?
• +CFUN: <fun>
• +CME ERROR: <err>
Show if the
command is
supported
AT+CFUN=?
• +CFUN: (list of
supported <fun>s)
• +CME ERROR: <err>
Selects the level of functionality <fun> in the MS. Level “full
functionality” results in the highest level of power drawn. “Minimum
functionality” results in the minimum power drawn. Manufacturers may
also specify levels of functionality between these two end levels.
Test command returns values supported by the ME as a compound.
“AT+CFUN=” is interpreted as “AT+CFUN=0”.
Note!
<fun>
Description
0
Minimum functionality. Default value
Note: The ME is turned off
1
Full functionality.
Note: If previously turned off, the phone is turned on
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3.21 AT+CIND
Indicator Control
Description
Command
Possible Responses
Set Indicator
Control
AT+CIND=[<ind>
[,<ind>[,…]]]
• +CME ERROR: <err>
• OK
• ERROR
Show the current
setting
AT+CIND?
• +CIND: <ind>,<ind>,…
• +CME ERROR: <err>
• OK
• ERROR
Show if the
command is
supported
AT+CIND=?
• +CIND: (<descr>,(list of
supported <ind>s)),
(<descr>,(list of supported
<ind>s)),…
• +CME ERROR: <err>
• OK
• ERROR
Used to set the values of ME indicators. <ind> value 0 means that the
indicator is off (or in state which can be identified as “off” state), 1
means that indicator is on (or in a state which is more substantial than
“off” state), 2 is more substantial than 1, and so on. If the indicator is a
simple on/off style element, it has values 0 and 1. The number of
elements is ME specific. If the ME does not allow setting of indicators
or it is not currently reachable, +CME ERROR: <err> is returned. If a
certain indicator is not writable, it cannot be set. If the parameter is an
empty field, the indicator will keep the previous value.
Test command returns pairs, where string value <descr> is a maximum
16 character description of the indicator and compound value is the
allowed values for the indicator. If ME is not currently reachable,
+CME ERROR: <err> is returned (refer to GSM 07.07).
<ind>
Description
Integer type
Value shall be in range of corresponding <descr>
<descr>
Description
“signal”
Signal quality (0-5)
“service”
“sounder”
“message”
“call”
Service availability (0-1)
Sounder activity (0-1)
Message received (0-1)
Call in progress (0-1)
Roaming indicator (0-1)
“roam”
“sms full”
A short message memory storage in the MT has become full
(1), or memory locations are available (0); i.e. the range is
(0-1)
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3.22 AT+CLAC List all available AT Commands
Command
Possible Responses
+CLAC
<AT Command1> [<CR> <LF> <AT Command2>[…]]
+CME ERROR: <err>
+CLAC=?
+CME ERROR: <err>
Causes the ME to return one or more lines of AT commands. This
command has the same functionality as AT*.
Note!
This command only returns the AT commands that are available to the
user.
3.23 AT+CMEE Mobile Equipment Error
Description
Command
Possible Responses
Request GSM Mobile
Equipment Error
Control
AT+CMEE=[<n>]
• OK
• ERROR
Show the current
setting
AT+CMEE?
• +CMEE: <n>
• OK
• ERROR
Show if the command
is supported
AT+CMEE=?
• +CMEE: (list of
supported <n>s)
• OK
• ERROR
Disables or enables the use of result code +CME ERROR: <err> as an
indication of an error relating to the functionality of the ME. When
enabled, ME related errors cause +CME ERROR: <err> final result
code instead of the regular ERROR final result code. ERROR is
returned normally when error is related to syntax, invalid parameters, or
TA functionality. For more information, refer to “+CME ERROR
<n>
Description
0
Disable +CME ERROR: <err> result code and use ERROR
instead. Default value
1
2
Enable +CME ERROR: <err> result code and use numeric
Enable +CME ERROR: <err> result code and use verbose
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3.24 AT+CMER Mobile Equipment Event Reporting
Description
Command
Possible Responses
Set Phone
Activity Status
AT+CMER=[<mode> • +CME ERROR: <err>
[,<keyp>[,<disp>
[,<ind>[,<bfr>]]]]]
• OK
• ERROR
Show the current
setting
AT+CMER?
• +CMER:
<mode>,<keyp>,<disp>,
<ind>,<bfr>
• OK
• ERROR
Show if the
command is
supported
AT+CMER=?
• +CMER: (list of supported s),
(list of supported
<keyp>s),(list of supported
<disp>s),(list of supported
<ind>s),(list of supported
<bfr>s)
• OK
• ERROR
The command enables or disables the sending of unsolicited result
codes from the ME to the TE in the case of key pressings, display
changes, and indicator state changes. <mode> controls the processing
of unsolicited result codes specified within this command. <bfr>
controls the effect on buffered codes when <mode> 1, 2 or 3 is entered.
If the ME does not support setting, +CME ERROR: <err> is returned.
Test command returns the modes supported by the TA as compound
values.
<mode>
Description
0
Buffer unsolicited result codes in the TA; if TA result code
buffer is full, codes can be buffered in some other place
or the oldest ones can be discarded
3
Forward unsolicited result codes directly to the TE; TA-TE
link specific inband technique used to embed result
codes and data when TA is in on-line data mode
<keyp>
Description
0
2
No keypad event reporting
Keypad event reporting using result code +CKEV:
<key>,<press>. Enables keypad event reporting of all key
pressings
Note: When this mode is enabled, corresponding result
codes of all keys currently pressed will be flushed to the TA
regardless of <bfr> setting
<disp>
Description
0
No display event reporting
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<ind>
Description
0
1
No indicator event reporting
Indicator event reporting using result code +CIEV:
<ind>,<value>. <ind> indicates the indicator order number
(as specified for +CIND) and <value> is the new value of
indicator. Only those indicator events, which are not
caused by +CIND shall be indicated by the TA to the TE
<bfr>
Description
0
TA buffer of unsolicited result codes defined within this
command is cleared when <mode> 1...3 is entered
Unsolicited Result Codes:
+CKEV: <key>,<press>
+CIEV: <ind>,<value>
3.25 AT+CPAS Phone Activity Status
Description
Command
Possible Responses
Execute Phone Activity
Status
AT+CPAS[=<mode>]
• +CPAS: <pas>
• +CME ERROR <err>
• OK
• ERROR
Show if the command
is supported
AT+CPAS=?
• +CPAS:
(list of supported
<pas>s)
• +CME ERROR <err>
• OK
• ERROR
Returns the activity status <pas> of the ME. It can be used to interrogate
the ME before requesting action from the phone.
When the command is executed without the <mode> argument, the
command returns <pas> values from 0 to 128 (for supported values see
table below). When, on the other hand, the command is executed with
the <mode> argument set to 1, the command may return Ericsson
specific <pas> values from 129 to 255 (for supported values see the
table below).
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Test command returns values supported by the ME as a compound
value: refer to GSM 07.07.
<pas>
Description
0
3
Ready (ME allows commands from TA/TE)
Ringing (ME is ready for commands from TA/TE, but the
ringer is active)
4
Call in progress (ME is ready for commands from TA/TE, but
a call is in progress)
129
130
Not in call
Mobile oriented call in progress. This is a sub-state to ‘call
in progress’
131
Mobile terminated call in progress. This is a sub-state to
‘call in progress’
<mode>
Description
1
Allows the CPAS to return Ericsson specific <pas> values,
such as 129, 130 and 131
Example
AT+CPAS=?
+CPAS: (0,3,4,129,130,131)
OK
AT+CPAS
+CPAS: 0
OK
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3.26 AT+CPIN
PIN Control
Description
Command
Possible Responses
Request PIN Control
AT+CPIN=<pin>[,<new
pin>]
• +CME ERROR:
<err>
• OK
• ERROR
Show the current
setting
AT+CPIN?
• +CPIN: <code>
• +CME ERROR:
<err>
• OK
• ERROR
Show if the command
is supported
AT+CPIN=?
• +CME ERROR:
<err>
• +CPIN: (supported
<code>s)
• OK
• ERROR
Sends the password to the ME, which is necessary to make the ME
operational (SIM PIN, SIM PUK or PH-SIM). If the PIN is to be entered
twice, the TA autonomously repeats the PIN. If no PIN request is
pending, no action is taken towards the ME and an error message
(+CME ERROR <err>) is returned to the TE.
If the PIN required is PUK, the second pin is required. This second PIN,
<newpin>, is used to replace the old PIN in the SIM.
Note!
Commands which interact with the ME that are accepted when the ME
has a pending request for SIM PIN, SIM PUK or PH-SIM are: +CGMI,
+CGMM, +CGMR, +CGSN, +CFUN, +CMEE +CPIN, L and M.
<pin>,<newpin>
Description
string
The range for the SIM PIN and the PH- SIM PIN is 4 - 8
digits. The SIM PUK consists of 8 digits
<code>
Description
READY
SIM PIN
SIM PUK
ME is not pending for any password
ME is waiting SIM PIN to be given
ME is waiting SIM PUK to be given
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<code>
Description
PH-SIM PIN
SIM PIN2
ME is waiting PHone-to-SIM card password to be given
ME is waiting SIM PIN2 to be given. This <code> is
recommended to be returned only when the last
executed command resulted in PIN2 authentication
failure (i.e. +CME ERROR: 17); if PIN2 is not entered
correctly after the failure, it is recommended that ME does
not block its operation
SIM PUK2
ME is waiting SIM PUK2 to be given. This <code> is
recommended to be returned only when the last
executed command resulted in PUK2 authentication
failure (i.e. +CME ERROR:18); if PUK2 and new PIN2 are not
entered correctly after the failure, it is recommended that
ME does not block its operation.
BLOCKED
The SIM cards is blocked for the user
<err>
Description
0
Phone failure
5
PH-SIM PIN required
SIM not inserted
SIM PIN required
SIM PUK required
SIM failure
10
11
12
13
14
15
16
24
25
100
SIM busy
SIM wrong
Incorrect password
Text string too long
Invalid characters in text string
Unknown
Example
AT+CPIN=“0000”
OK
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3.27 AT+CPWD Change Password
Description
Command
Possible Responses
Request facility lock
AT+CPWD=<fac>,
<oldpwd>,
<newpwd>
• +CME ERROR <err>
• OK
• ERROR
Show if the command
is supported
AT+CPWD=?
• +CPWD:
(<fac1>,<pwdlength1>),
(<fac2>,<pwdlength2>),
…
• +CME ERROR <err>
• OK
• ERROR
Sets a new password for the facility lock function defined by command
Facility Lock +CLCK.
Test command returns a list of pairs which present the available
facilities and the maximum length of their password.
<fac>
Description
“PS”
PH-SIM (lock PHone to SIM card) (ME asks password when
other than current SIM card inserted)
“SC”
SIM (lock SIM card) (SIM asks password in ME power-up
and when this lock command issued)
“P2”
“AO”
“OI”
SIM PIN2
BAOC (Barr All Outgoing Calls) (refer GSM 02.88 clause 1)
BOIC (Barr Outgoing International Calls) (refer GSM 02.88
clause 1)
“AI”
“IR”
BAIC (Barr All Incoming Calls) (refer GSM 02.88 clause 2)
BIC-Roam (Bar Incoming Calls when Roaming outside the
home country) (refer GSM 02.88 clause 2)
“OX”
BOIC-exHC (Barr Outgoing International Calls except to
Home Country) (refer GSM 02.88 clause 1)
“AB”
“AG”
“AC”
All Barring services (refer GSM 02.30)
All outGoing barring services (refer GSM 02.30)
All inComing barring services (refer GSM 02.30)
<oldpwd>
Description
string type
<oldpwd> shall be the same as password specified for the
facility from the ME user interface or with the change
password command, +CPWD
<newpwd>
Description
string type
<newpwd> is the new password, maximum length of
password can be determined with <pwdlength>
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<pwdlength>
Description
Integer type
Maximum length of the password for the facility
<err>
Description
0
Phone failure
3
Operation not allowed
PH-SIM PIN required
SIM not inserted
SIM PIN required
SIM PUK required
SIM failure
5
10
11
12
13
14
15
16
17
18
23
24
100
101..255
SIM busy
SIM wrong
Incorrect password
SIM PIN2 required
SIM PUK2 required
Text string too long
Invalid characters in text string
Unknown
Reserved by ETS
Example
AT+CPWD=“SC”,“0000”,“0001”
OK
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3.28 AT+CR
Service Reporting Control
Description
Command
Possible Responses
Set Service Reporting
Control
AT+CR=<mode>
• OK
• ERROR
Show the current
setting
AT+CR?
• +CR: <mode>
• OK
• ERROR
Show if the command
is supported
AT+CR=?
• +CR: (list of
supported
<mode>s)
• OK
• ERROR
Enables or disables display of intermediate bearer capability reports
during the handshake phase.
<mode>
Description
0
1
Disable reporting. Default value
Enable reporting
Intermediate Result Codes:
+CR: <serv>
3.29 AT+CRC
Cellular Result Code
Description
Command
Possible Responses
Set Cellular Result
Code option
AT+CRC=[<mode>]
AT+CRC?
• OK
• ERROR
Show the current
setting
• +CRC: <mode>
• OK
• ERROR
Show if the command
is supported
AT+CRC=?
• +CRC: (list of
supported
<mode>s)
• OK
• ERROR
Command controls whether or not;
• the extended format of incoming call indication;
• or GPRS network request for PDP context activation;
• or notification for VBS/VGCS calls is used.
When enabled, an incoming call is indicated to the TE with unsolicited
result code +CRING: <type> instead of the normal RING.
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Test command returns values supported by the TA as a compound
value.
<mode>
Description
0
1
Disables extended format
Enables extended format
Unsolicited Result Codes:
+CRING: <type>
3.30 AT+CSAS
Save Settings
Description
Command
Possible Responses
Save Settings
AT+CSAS[=<profile>]
• +CMS ERROR: <err>
• OK
• ERROR
Show if the
command is
supported
AT+CSAS=?
• +CSAS: (list of supported
<profile>s)
• +CMS ERROR: <err>
• OK
• ERROR
Saves active message service settings to a non-volatile memory. A TA
can contain several settings profiles. Settings specified in commands
Service Centre Address +CSCA, Set Message Parameters +CSMP and
Select Cell Broadcast Message Types +CSCB (if implemented) are
saved. Certain settings may not be supported by the storage (e.g. SIM
SMS parameters) and therefore can not be saved.
Test command shall display the supported profile numbers for reading
and writing of settings.
<profile>
Description
0..255
Manufacturer specific profile number where settings are
to be stored. Default value is 0
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3.31 AT+CSQ
Signal Strength
Description
Command
Possible Responses
Show the Signal
Strength
AT+CSQ
• +CSQ: <rssi>,<ber>
• +CME ERROR <err>
• OK
• ERROR
Show if the command
is supported
AT+CSQ=?
• +CSQ: (list of
supported
<rssi>s),(list of
supported <ber>s)
• +CME ERROR <err>
• OK
• ERROR
Returns the received signal strength indication <rssi> and channel bit
error rate <ber> from the ME. Test command returns values supported
by the TA as compound values.
<rssi>
Description
0
–113dBm or less
1
–111dBm
2..30
31
99
–109… –53dBm
–51dBm or greater
Not known or not detectable
<ber>
Description
0..7
As RXQUAL values in the table in GSM 05.08 subclause
8.2.4
99
Not known or not detectable
Example
AT+CSQ
+CSQ: 13,99
OK
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3. CONTROL AND STATUS
3.32 AT+CTZU
Automatic Time Zone Update
Description
Command
Possible Responses
Enable and disable
automatic time zone
update via NITZ
AT+CTZU=<onoff>
• +CME ERROR: <err>
• OK
• ERROR
Show the current
setting
AT+CTZU?
• +CTZU: <onoff>
• +CME ERROR: <err>
• OK
• ERROR
Show if the command
is supported
AT+CTZU=?
• +CTZU: (list of
supported <onoff>s)
• +CME ERROR: <err>
• OK
• ERROR
Enables and disables the automatic time zone update via NITZ. If
setting fails in an ME error, +CME ERROR <err> is returned.
<onoff>
Description
0
The automatic time zone update is disabled (off). Default
value
1
The automatic time zone update is enabled (on)
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4. Audio
Note!
*E2EAMS and *E2APR are new commands that replace the
funtionality offered by the *EALR, *EAMS, *EARS and *ELAM
commands. Use the new commands in new applications. The old
commands are included for compatibility.
4.1 AT*E2EAMS Ericsson M2M Audio Profile Modification
Description
Command
Possible Responses
Request
operation
with audio
profile
AT*E2EAMS= <op>[,<TxPGA>, • ERROR
<RxPGA>,<SideToneGain>,
<AuxInGain>,<MicInGain>,
<TxAGC>,<Volume>,
• OK
<MaxVolume>,<MicPath>,
<SpkPath>,<TxPCM>,
<RxPCM>,<HFAlgorithm>,
<LocalAudio>,<TxGainLow>,
<MicVolt2V>,<SideTone>,
<NoiseRed>,<EchoCancel>,
<AnalogRing>,][,<val>]]
Show the
current
setting
AT*E2EAMS?
• *E2EAMS: <TxPGA>,
<RxPGA>,
<SideToneGain>,
<AuxInGain>,
<MicInGain>,
<TxAGC>,<Volume>,
<MaxVolume>,
<MicPath>,<SpkPath>,
<TxPCM>,<RxPCM>,
<HFAlgorithm>,
<LocalAudio>,
<TxGainLow>,
<MicVolt2V>,
<SideTone>,<NoiseRed>,
<EchoCancel>,
<AnalogRing>
OK
• ERROR
Show if the
command
is supported
AT*E2EAMS=?
• *E2EAMS:
(list of supported <op>s)
• ERROR
This command allows the modification and configuration of the current
audio profile. An audio profile is a set of data which uniquely defines
the way in which the audio paths, gains, DSP algorithms and switch
setting are configured. There are several audio profiles available in
non-volatile storage, and the current profile can be modified by use of
the AT*E2APR command.
The AT*E2EAMS command allows the user to:
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• configure the whole profile, specifying each audio parameter in a
comma separated list;
• set a single parameter, given by its parameter number;
• save the current profile to non-volatile memory under the current
profile number (see AT*E2APR).
The current audio settings can also be displayed by running the read
command AT*E2EAMS?
Default audio settings are given in AT*E2APR.
Abortability:
This command may not be aborted.
Refer to the diagram below to understand which parts of the audio
circuit are affected by the various parameters.
CODEC
DSP
Speech
decoder
F/R
ATMS
PCMOUT
PCMULD
AuxInGain
MicInGain
TxPGA
TxGainLow
TxPCM
MicPath
switches
MICP
MICN
SideTone
Gain
Handsfree
EchoCancel
NoiseRed
SideTone
switch
Aux Amp
Ear Amp
SpkPath
switches
PCMIN
PCMDLD
Encoder
F/R
RxPGA
Volume
RxPCM
BEARP
BEARN
Figure 4.1 Audio diagram of the CODEC
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4. AUDIO
<op>
Description
0
Configure current profile (<pr1> to <pr21>)
Set <TxPGA>
1
2
Set <RxPGA>
3
Set <SideToneGain>
Set <AuxInGain>
Set <MicInGain>
Set <TxAGC>
4
5
6
7
Set <Volume>
8
Set <MaxVolume>
Set <MicPath>
9
10
11
12
13
14
15
16
17
18
19
20
255
Set <SpkPath>
Set <TxPCM>
Set <RxPCM>
Set <HFAlgorithm>
Set <LocalAudio>
Set <TxGainLow>
Set <MicVolt2V>
Set <SideTone>
Set <NoiseRed>
Set <EchoCancel>
Set <AnalogRing>
Save current profile to non-volatile storage at current
profile number
<TxPGA>,
<RxPGA>
Description
0
1
2
3
-5dB PGA gain
-2.5dB PGA gain
0dB PGA gain
2.5dB PGA gain
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<TxPGA>,
Description
<RxPGA>
5dB PGA gain
4
5
6
7
7.5dB PGA gain
–7.5dB PGA gain
–10dB PGA gain
<SideToneGain> Description
0
1
2
3
4
5
10dB
13dB
16dB
19dB
22dB
25dB
<AuxInputGain>
Description
0
1
2
3
MUTE
13dB
34dB
46dB
<MicInputGain>
Description
0
1
2
3
4
MUTE
13dB
25dB
34dB
46dB
<TxAGCGain>
Description
0
1
2
0dB
3dB
6dB
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<Volume>,
Description
<MaxVolume>
0
MUTE
1-9
Volume levels 1-9
<MicPath>,
<SpkPath>
Description
0
1
2
3
OFF
MUTE
Internal (using microphone/speaker)
External (using ATMS/AFMS)
<TxPCM>,
<RxPCM>
Description
0
1
13bit PCM
16bit PCM
<HFAlgorithm>
Description
0
1
2
3
4
No handsfree
Advanced handsfree
Switching handsfree
No handsfree handheld
No handsfree external
<LocalAudio>
Description
0
1
2
3
Local audio mode off
Local audio microphone/no speaker
Local audio no microphone/speaker
Local audio microphone/speaker
<TxGainLow>
Description
0
1
Tx gain normal
Tx gain –7dB
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<MicVolt2V>
Description
0
1
Microphone voltage at 2.5V
Microphone voltage at 2V
<SideTone>,
Description
<NoiseRed>,
<EchoCancel>,
<AnalogRing>
0
1
OFF
ON
Examples
AT*E2EAMS=?
*E2EAMS=(0-21,255)
OK
Current default profile is 0:
AT*E2EAMS?
*E2EAMS: 2,2,3,2,3,2,5,9,3,3,0,1,0,0,0,1,1,1,1,1,1
OK
Sets current profile with these settings:
AT*E2EAMS=0,2,1,2,0,0,2,5,9,2,2,0,1,0,0,0,1,1,0,0,1,1
OK
Sets TxPGA gain to 0dB:
AT*E2EAMS=1,2
OK
Turns analog ringing off:
AT*E2EAMS=20,0
OK
Save current profile to currently loaded profile in non-volatile memory:
AT*E2EAMS=255
OK
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4. AUDIO
4.2 AT*E2APR
M2M Audio Profile Manipulation
Description
Command
Possible Responses
Request operation
with audio profile
AT*E2APR=
<op>[,<prnum1>
[,<prnum2>]]
• ERROR
• OK
• *E2APR: <TxPGA>,<RxPGA>,
<SideToneGain>,<AuxInGain>,
<MicInGain>,<TxAGC>,
<Volume>,<MaxVolume>,
<MicPath>,<SpkPath>,
<TxPCM>,<RxPCM>,
<HFAlgorithm>,<LocalAudio>,
<TxGainLow>,<MicVolt2V>,
<SideTone>,<NoiseRed>,
<EchoCancel>,<AnalogRing>
• OK
Show the current
setting
AT*E2APR?
•
•
*E2APR: current <prnum>
ERROR
Show if the
command is
supported
AT*E2APR=?
• *E2APR: (list of supported
<op>s), (list of supported
<prnum1>s), (list of supported
<prnum2>s)
• ERROR
This command allows the maniuplation and storage of the audio
“profiles” stored in the MS. The requirement for the 2nd and 3rd
parameters depend on the operation being carried out.
Using the command you can:
• Set one of the three audio profiles 0, 1 or 2 as the current profile.
This will load the profile's settings from NVM and implement them.
• Read one of the audio profiles. The current settings for the profile
number defined will be displayed.
• Copy all parameters from one profile into another.
• Reset any of the profiles. This will reinstate the factory defaults for
the profile:
- 0 is the handset profile,
- 1 is the portable handsfree profile,
- 2 is the car kit profile.
• Set a profile as the default profile on next power up.
<op>
Description
0
1
2
3
4
Set profile <prnum1> to set as current
Copy profile <prnum1> to <prnum2>
Read profile <prnum1> settings
Reset profile <prnum1> to factory default
Set default profile as <prnum1>. Will store this as defautl
profile in NVM, and use it as default from next power on
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<prnum1>,
Description
<prnum2>
0
1
2
Profile 0 (Factory profile set for handset). Default value
Profile 1 (Factory profile set for portable handsfree)
Profile 2 (Factory profile set for car kit)
Examples
AT*E2APR=?
*E2APR= (0-4),(0-2),(0-2)
OK
Current default profile is profile 0:
AT*E2APR?
*E2APR: 0
OK
Set audio profile now used to profile 1:
AT*E2APR=0,1
OK
Audio profile 1 settings:
AT*E2APR=1,1
*E2APR: 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0
OK
Copy audio profile 1 to audio profile 2:
AT*E2APR=2,1,2
OK
Reset audio profile 1 with factory default - this also resets the current
audio paths to the new profile as 1 is currently used:
AT*E2APR=3,1
OK
Sets profile number 1 as the default when module is powered on:
AT*E2APR=4,1
OK
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4. AUDIO
4.3 AT*EALR
Ericsson Audio Line Request
Description
Command
Possible Responses
Request the audio lines
(ATMS,AFMS)
AT*EALR=<mode>
[,<activation>
[,<aud_status>]]
• *EALR: <mode>,
<activation>,<resp>
• OK
• ERROR
Show the current
setting
AT*EALR?
*EALR:
<mode>,<activation>,
<resp>
Show if the command
is supported
AT*EALR=?
*EALR:(list of supported
<mode>s,
<activation>s and
<aud_status>s
parameters)
Included for compatibility. No functionality.
<mode>
Description
0
1
2
3
No request for ATMS or AFMS
Request ATMS and not AFMS
Request AFMS and not ATMS
Request ATMS and AFMS
<activation>
Description
0
Not direct activated audio accessory (e.g. cordless
portable hands free)
1
Direct activated audio accessory (e.g. vehicle hands
free)
<aud_status>
Description
0
1
No change of the audio status
Audio hand over. Accessory hands over control of both
the audio lines and the call to the phone
2
Audio demand. Accessory demands control of both the
audio lines and the call
<resp>
Description
0
1
2
3
Disable ATMS and AFMS
Enable ATMS and disable AFMS
Disable ATMS and enable AFMS
Enable ATMS and AFMS
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4.4 AT*EAMS
Ericsson Audio Mode Selection
Description
Command
Possible Responses
Sets the audio
mode for the
application
AT*EAMS=<internal_voice_al
g>[,<noise_reduction>
[,<side tone>
• OK
• ERROR
[,<short_echo_canceling>
[,<ATMS_gain>
[,<class>
[,<ATMS_sensitivity_deviation
_from_class>
[,<AFMS_sensitivity_deviation
_from_class>]]]]]]]
Show the
current
setting
AT*EAMS?
*EAMS:<internal_voice_alg
>, <noise_reduction>,
<side_tone>,
<short_echo_canceling>,
<AFMS_gain>,<class>,<AT
MS_sensitivity_deviation_fr
om_class>,<AFMS_sensitivi
ty_deviation_from_class>
Show if the
command is
supported
AT*EAMS=?
*EAMS: (list of supported
<internal_voice_alg >s,
<noise_reduction>s,
<side_tone>s,
<short_echo_canceling>s,
<AFMS_gain>s>,
<class>s,
<ATMS_sensitivity_deviatio
n_from_class>s,
<AFMS_sensitivity_deviatio
n_from_class>s)
Included for compatibility. No functionality.
<internal_voice_alg>
Description
0
1
2
None
Semi Duplex
Full Duplex
(Note! the internal hands free algorithm in the
MS contains echo cancelling)
<noise_reduction>
Description
0
1
Off
On
<side_tone>
Description
0
1
Off
On
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<short_echo_canceling>
Description
0
1
Off
On
<ATMS_gain>
Description
0
Normal (0 dB) (internal voice processing)
<Class>
Description
0
1
2
3
None
Low end, class reference Hector
Mid End, class reference Scott
High End, class reference Hasse
<ATMS_sensitivity_deviation_from_class>, Description
<AFMS_sensitivity_deviation_from_class>
0
1
2
3
4
0 dB
2,5 dB
–2,5 dB
5,0 dB
–5,0 dB
4.5 AT*EARS
Ericsson Audio Ring Signal
Description
Command
Possible Responses
Request analogue ring
signal in the loudspeaker
AT*EARS=<mode>
• OK
• ERROR
Show the current setting
AT*EARS?
*EARS: <mode>
Show if the command is
supported
AT*EARS=?
*EARS: (list of
supported <mode>s)
Included for compatibility. No functionality.
<mode>
Description
0
1
Disable analogue ring signal
Enable analogue ring signal
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4.6 AT*E2PHFB Portable Handsfree Button Sense Enable
Description
Command
Possible Responses
Set PHF functionality
AT*E2PHFB=<op>
• ERROR
• OK
Show the current
setting
AT*E2PHFB?
*E2PHFB: <op>
Show if the command
is supported
AT*E2PHFB=?
• *E2PHFB: (list of
supported <op>s
• ERROR
This command allows the user to set the functionality for a PHF
(portable handsfree) button, as used on simple handsfree equipment.
When set to ON, the MS will detect the shortcircuit of the ATMS and
AFMS lines, and interpret this as a PHF button press. This has the effect
of answering/hanging up a call without recourse to AT commands.
<op>
Description
0
1
Disable PHF button. Default value
Enable PHF button
4.7 AT*ELAM
Ericsson Local Audio Mode
Description
Command
Possible Responses
Set local audio mode
AT*ELAM=<mic>
[,<loudspeaker>]
• *ELAM: <mic>,
<loudspeaker>
• OK
• ERROR
Show the current
setting
AT*ELAM?
*ELAM:
<mic>,<loudspeaker>
Show if the command
is supported
AT*ELAM=?
*ELAM: (list of
supported <mic>s and
<loudspeaker>s
parameters)
Included for compatibility. No functionality.
<mic>
Description
0
1
Off
Microphone analogue
<loudspeaker>
Description
0
1
Off
Loudspeaker analogue
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4. AUDIO
4.8 AT*EMIC
Ericsson Microphone Mode
Description
Command
Possible Responses
Enables/disables the
phone microphone
AT*EMIC=<mode>
• +CME ERROR: <err>
• OK
• ERROR
Show the current
setting
AT*EMIC?
• *EMIC: <mode>
• +CME ERROR: <err>
• OK
• ERROR
Show if the command
is supported
AT*EMIC=?
• *EMIC: (list of
supported
<mode>s)
• +CME ERROR: <err>
• OK
• ERROR
Included for compatibility. No functionality.
<mode>
Description
0
1
Microphone is disabled (off)
Microphone is enabled (on)
4.9 AT*EMIR
Ericsson Music Mute Indication Request
Description
Command
Possible Responses
Request for mute
indications
AT*EMIR=<mode>
• OK
• ERROR
Show the current
setting
AT*EMIR?
*EMIR: <mode>,<resp>
Show if the command
is supported
AT*EMIR=?
*EMIR: (list of supported
<mode>s)
Included for compatibility. No functionality.
<mode>
Description
0
Off, music mute indication result codes will not be sent to
the accessory
1
On, music mute indication result codes will be sent to the
accessory
<resp>
Description
0
1
Music mute inactive
Music mute active
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4.10 AT*EPRR
Ericsson Personal Ring Type Read
Description
Command
Possible Responses
Read phone number
and ring type
AT*EPRR=<indexr>
• *EPRR:
<indexr>,<number>,
<type>,<sound
type>
• +CME ERROR <err>
• OK
• ERROR
Show if the command
is supported
AT*EPRR=?
• *EPRR: (list of
supported
<indexr>s)
• +CME ERROR <err>
• OK
• ERROR
Returns phone number, phone number type and sound type in location
number <indexr>. If listing fails an error, +CME ERROR: <err>, is
returned.
<indexr>
Description
1-50
Value of location number
<number>
Description
string type
Phone number of format <type>
<type>
Description
integer format
Type of address octet
(refer GSM 04.08 [4] section 10.5.4.7)
128
129
Unknown numbering plan, national / international number
unknown
ISDN / telephony numbering plan, national / international
unknown
145
ISDN / telephony numbering plan, international number
ISDN / telephony numbering plan, national number
Other values refer GSM 04.08 [4] section 10.5.4.7
161
128 - 255
<sound type>
Description
0
1
2
3
4
Off. Not supported
Low ring signal
Medium ring signal
High ring signal
Mixed ring signal
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<sound type>
Description
5
Beep. Not supported
6
Alarm. Not supported
7
Calendar Tone. Not supported
Calendar Click. Not supported
Reserved. Not supported
8
9-10
11
Melody 1
12-20
21-30
31-38
39-50
Melody 2. Melody 10 reserved for pre-set melodies
Reserved for melody 11-20. Not supported
Own melody 1-8
Reserved for own melodies. Not supported
4.11 AT*EPRW
Ericsson Personal Ringtype Write
Description
Command
Possible Responses
Request Personal
Ringtype Write
command
AT*EPRW=<indexr>,
<number>,[<type>],
<soundtype>
• +CME ERROR <err>
• OK
• ERROR
Show if the command
is supported
AT*EPRW=?
• *EPRW: (list of
supported
<indexr>s),<nlength
>,(list of supported
<type>s),(list of
supported <sound
type>s)
• +CME ERROR <err>
• OK
• ERROR
Writes phone number, phone number type and sound type in location
number <indexr>. It is possible to use wild cards for phone number by
substituting the digits with question marks. If writing fails an error,
+CME ERROR: <err>, is returned.
If all parameters but <indexr> are omitted, the personal ring type at
position <indexr> will be deleted.
<indexr>
Description
1-50
Value of location number. The location number must be
free. If the given location number is not free, ERROR is
returned
<number>
Description
string type
phone number of format <type>
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<type>
Description
Integer format
Type of address octet
(refer to GSM 04.08 [4] section 10.5.4.7)
128
129
Unknown numbering plan, national/international number
unknown
ISDN/telephony numbering plan, national/international
number unknown
145
ISDN/telephony numbering plan, international number
ISDN/telephony numbering plan, national number
Other values refer to GSM 04.08 [4] section 10.5.4.7
161
128 - 255
<nlength>
Description
integer type
Value indicating the maximum length of field <number>
<sound type>
Description
0
Off. Not supported
1
Low ring signal
2
Medium ring signal
3
High ring signal
4
Mixed ring signal
5
Beep. Not supported
6
Alarm. Not supported
7
Calendar Tone. Not supported
Calendar Click. Not supported
Reserved. Not supported
Melody 1
8
9-10
11
12-30
31-38
39-50
Melody 2. Melody 20 reserved for pre-set melodies
Own melody 1-8
Reserved for own melodies. Not supported
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4. AUDIO
4.12 AT*ERIL
Ericsson Ring Level Set
Description
Command
Possible Responses
Sets ring volume for the
ring signals used for
incoming voice (L1
and L2), fax and data
calls
AT*ERIL=<volume>[,<c
all type>
[,<place>]]
• +CME ERROR: <err>
• OK
• ERROR
Show the current
setting
AT*ERIL?
• *ERIL:
<volume1>[,<call
type1> [,<place1>
[<CR><LF>…*ERIL:
<volume n>[, <call
type n> [,<place
n>]]]]]
• +CME ERROR: <err>
• OK
• ERROR
Show if the command
is supported
AT*ERIL=?
• *ERIL: (list of
supported
<volume>s)[,(list of
supported <call
type>s)
[,(list of supported
<place>s)]]
• +CME ERROR: <err>
• OK
• ERROR
Used to set the volume for the ring signals used for incoming voice,
Line 1, Line 2, fax and data calls. The parameter <place> controls the
ring level set for different types of modes. The signal volume is
specified as “step”, with an increasing volume for each signal, or as a
selected level.
Line 1 is the default for <call type> if the parameter is not given.
<volume>
Description
0
Off
1-6
Volume setting, not increasing ring
Volume setting, increasing ring
129-134
<calltype>
Description
1
2
3
4
5
Line 1
Line 2
Fax
Data
Alarm. Not supported
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<place>
Description
0
1
Hand held
Car mounted
4.13 AT*ERIN
Ericsson Ring Set
Description
Command
Possible Responses
Sets ring type for
AT*ERIN=
<sound type>,
[<call type>]
• +CME ERROR: <err>
• OK
• ERROR
incoming voice (L1
and L2), fax and data
calls and alarm
Show the current
setting
AT*ERIN?
• *ERIN: <sound
type1>,<call type1>
[<CR><LF>…*ERIN:
<sound type
n>,<call type n>]
• +CME ERROR: <err>
• OK
• ERROR
Show if the command
is supported
AT*ERIN=?
• *ERIN: list of
supported <sound
type>s, list of
supported <call
type>s
• +CME ERROR: <err>
• OK
• ERROR
Used to set sound for incoming voice, line L1 and L2, fax, data calls and
alarm. For each of the incoming call types and alarm: voice on line 1,
voice on line 2, fax calls and data calls and alarm a sound type is
selected.
The type of sound is either a ring signal, selected from a predefined set,
a melody, selected from a predefined set, or an own melody, selected
from a set specified by the user.
Line 1 is the default for <call type> if the parameter is not given.
<call type>
Description
1
2
3
4
5
Line 1
Line 2
Fax
Data
Alarm
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4. AUDIO
<sound type>
Description
0
Off. Not supported
1
Low ring signal
2
Medium ring signal
3
High ring signal
4
Mixed ring signal
5
Beep. Not supported
6
Alarm. Not supported
7
Calendar Tone. Not supported
Calendar Click. Not supported
Reserved. Not supported
Melody 1. Melody 10 reserved for preset melodies
Reserved. Not supported
Own melodies 1-8
8
9-10
11-20
21-30
31-38
39-5
Reserved for own melodies. Not supported
4.14 AT*ERIP
Ericsson Ring Signal Playback Command
Description
Command
Possible Responses
Plays the selected
sound type at
specified volume level
AT*ERIP =
<volume>,<sound
type>
• +CME ERROR: <err>
• OK
• ERROR
Show if the command
is supported
AT*ERIP=?
• *ERIP: (list of
supported
<volume>s),(list of
supported <sound
type>s)
• OK
• ERROR
Used to play one of the sound types which are available as ring signals/
message signals on the module. The signal volume may not be chosen
as “step”; with an increasing volume for each signal. If value 1 is chosen
for parameter <volume>, nothing should happen. Signal volume may be
chosen as a selected level.
<volume>
Description
0
Off
1
Step. Not Supported
Volume setting
2-n
Refer to the AT*ERIN command for the <sound type> parameter.
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4.15 AT*ESMA
Ericsson Set Message Alert Sound
Description
Command
Possible Responses
Sets the answer mode
settings in the MS
AT*ESMA=<mode>
• +CME ERROR: <err>
• OK
• ERROR
Show the current
setting
AT*ESMA?
• *ESMA: <mode>
• +CME ERROR: <err>
• OK
• ERROR
Show if the command
is supported
AT*ESMA=?
• *ESMA: list of
supported <mode>s
• +CME ERROR: <err>
• OK
• ERROR
<mode >
Description
0
1
2
Answer mode is not set to “Any key”, or “Auto” (off)
Any Key mode on
Auto mode on
4.16 AT*ESOM Ericsson Settings Own Melody
Description
Command
Possible Responses
Sets the own
melodies in the
MS
AT*ESOM=
[<melody index>],
<melody string>
• +CME ERROR: <err>
• OK
• ERROR
Show the
current setting
AT*ESOM?
• *ESOM: <melody index>
,<melody string 1>, <CR><LF>
……*ESOM: <melody index>,
<melody string n>
• +CME ERROR: <err>
• OK
• ERROR
Shows if the
command is
supported
AT*ESOM=?
• *ESOM: (list of supported
<melody index>),(list of
supported <pause>s),(list of
supported <prefix>s),(list of
supported <tone>s),
<mlength>,<mtones>
• +CME ERROR: <err>
• OK
• ERROR
Sets the user defined own melodies in the MS. The <prefix> and <tone>
indicates together the tone frequency and duration. The <pause> sets a
pause between tones.
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4. AUDIO
Test command returns the possible values of <melody index>, <pause>,
<prefix>, <tone>, <mlength> and <mtones>.
<melody
index>
Description
1-4
Melody 1 – 4. Default setting: 1
<melody
string>
Description
string
A sequence of <tones> and <pause> entries. The <tones>
may be preceded by one or two <prefix>(s)
<pause>
Description
p
Pause
<prefix>
Description
#
Half tone higher
Half tone lower
(b)
+
One octave higher
<tones>
Description
c,d,e,f,g,a,b
C,D,E,F,G,A,B
Short tones
Long tones
<mtones>
Description
integer
Indicating the maximum number of tones in a melody
<mlength>
Description
integer
Indicating the maximum length of <melody string>
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4.17 AT*EXVC
Ericsson Set External Volume Control
Description
Command
Possible Responses
Sets the maximum
volume level on the
audio lines
AT*EXVC=<external
volume>
• +CME ERROR: <err>
• OK
• ERROR
Show the current
setting
AT*EXVC?
• *EXVC: <external
volume>
• +CME ERROR: <err>
• OK
• ERROR
Show if the command
is supported
AT*EXVC=?
• *EXVC: (list of
supported <external
volume>s)
• +CME ERROR: <err>
• OK
• ERROR
Used to set or query whether an external accessory such as the vehicle
handsfree controls the audio volume.
By default, the <external volume> is turned off, i.e. the volume over
AFMS is controlled by the phone MMI.
The set command is effective only as long as the phone senses that it is
connected to an external accessory that has issued the command. Once
the phone and the accessory are disconnected the <external volume>
setting returns to default.
<external
volume>
Description
0
1
The phone MMI controls audio volume over AFMS
Audio volume over AFMS is output at maximum level that
is no clipping occurs. An external accessory such as a
vehicle kit controls the actual volume level heard by the
user
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4. AUDIO
4.18 ATM
Monitor Speaker Control
Description
Command
Possible Responses
Set monitor speaker
control
ATM[=][<speaker>]
• OK
• ERROR
Show the current
setting
ATM?
M: <speaker>
Show if the command
is supported
ATM=?
M: (list of supported
<speaker>s)
Define the activity of the speaker. This command is ignored by the
modem and is only included for compatibility.
<speaker>
Description
0
Off during the entire call. Default value
1-3
Different “on” modes
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5. Data - CSD/HSCSD
Note!
Since the module does not support V42bis compression the following
commands have not been implemented:
• AT+DS
• AT+DR
5.1 AT+CBST
Select Bearer Service Type
Description
Command
Possible Responses
Select bearer service
type
AT+CBST=[<speed>,
[<name>,[<ce>]]]
• OK
• ERROR
Show the current
setting
AT+CBST?
• +CBST:
<speed>,<name>,
<ce>
• OK
• ERROR
Show if the command
is supported
AT+CBST=?
• +CBST: (list of supported
<speed>s,list of
supported <name>s, list
of supported <ce>s)
• OK
• ERROR
Selects the bearer service <name> with data rate <speed>, and the
connection element <ce> to be used when data calls are originated.
Values may also be used during mobile terminated data call setup,
especially in the case of single numbering scheme calls.
Test command returns values supported by the TA as compound values.
<speed>
Description
0
Auto selection of baud rate
2400bps V.22bis
4
6
4800bps V.32
7
9600bps V.32
12
15
68
70
9600bps V.34
19200bps V.34
2400bps V.110 (ISDN)
4800bps V.110 (ISDN)
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<speed>
Description
71
75
79
80
81
82
83
9600bps V.110 (ISDN)
14400bps V.110 (ISDN)
19200bps V.110 (ISDN)
28800bps V.110 (ISDN)
38400bps V.110 (ISDN)
48000bps V.110 (ISDN)
56000bps V.110 (ISDN)
<name>
Description
0
Asynchronous connection (UDI or 3.1kHz modem)
<ce>
Description
1
Non transparent
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5. DATA - CSD/HSCSD
5.2 AT+CRLP
Radio Link Protocol
Description
Command
Possible Responses
Set radio link
protocol
AT+CRLP=[<iws>
[,<mws>[,<T1>
[,<N2>[,<ver>
[, <T4>]]]]]]
• OK
• ERROR
Show the
current setting
AT+CRLP?
• +CRLP:
<iws>,<mws>,<T1>,<N2>[,<ver1>
[,<T4>]][<CR><LF>
• +CRLP:
<iws>,<mws>,<T1>,<N2>[,<ver2>
[,<T4>]][...]]
• OK
• ERROR
Show if the
command is
supported
AT+CRLP=?
• +CRLP: (list of supported <iws>s),
(list of supported <mws>s),
(list of supported <T1>s),
(list of supported<N2>s)[,<ver1>
[,(list of supported <T4>s)]]
[<CR><LF>+CRLP: (list of
supported <iws>s), (list of
supported <mws>s), (list of
supported <T1>s), (list of
supported <N2>s)[,<ver2>[,(list of
supported <T4>s)]][...]]
• OK
• ERROR
Radio link protocol (RLP) parameters used when non-transparent data
calls are originated may be altered with this command. Available
command subparameters depend on the RLP versions implemented by
the device (e.g. <ver> may not be available if device supports only
versions 0 and 1).
Read command returns current settings for each supported RLP version
<verx>. Only RLP parameters applicable to the corresponding <verx>
are returned.
Test command returns values supported by the TA as a compound
value. If ME/TA supports several RLP versions <verx>, the RLP
parameter value ranges for each <verx> are returned in a separate line.
<iws>
Description
120
0 - 496
IWF to MS window size
<mws>
Description
120
0 - 496
MS to IWF window size
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<T1>
Description
48
38 - 100
Acknowledgment timer T1 (*10ms)
<N2>
Description
6
Re-transmission attempts N2
0 - 255
<T4>
Description
5
Re-sequencing period T4 (*10ms)
3 - 255
<ver>
Description
Integer
RLP version. When version indication is not present,
<ver>=0 is assumed
Example
AT+CRLP?
+CRLP: 61,61,48,6,0
+CRLP: 120,120,48,6,2,3
OK
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6. Data - GPRS
6.1 AT+CGACT PDP Context Activate or Deactivate
Description
Command
Possible Responses
Activate or deactivate
the specified PDP
context(s)
+CGACT=[<state>
[,<cid>[,<cid>[,…]]]]
• +CME ERROR: <err>
• OK
• ERROR
Show the current
setting
+CGACT?
• +CGACT: <cid>,
<state>[<CR><LF>
+CGACT: <cid>,
<state>[...]]
• OK
• ERROR
Show if the command
is supported
+CGACT=?
• +CGACT: (list of
supported <state>s)
• OK
• ERROR
Used to activate or deactivate the specified PDP context(s).
After the command has completed, the MS remains in V.250 command
state. If the MS is already in the requested state, the command is ignored
and OK is returned. If the requested state cannot be achieved, ERROR
or +CME: ERROR is returned. If the MS is not attached to the GPRS
service when the activation form of the command is executed, the MS
first performs a GPRS attach and then attempts to activate the specific
contexts.
If no <cid>s are specified the activation form of the command activates
all defined contexts.
If no <cid>s are specified the deactivation form of the command
deactivates all active contexts.
<state>
Description
0
1
PDP context activation deactivated
PDP context activation activated
<cid>
Description
Integer type
A numeric parameter which specifies a specific PDP
context definition
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6.2 AT+CGATT GPRS Attach or Detach
Description
Command
Possible Responses
Attach or detach MS
to the GPRS/packet
domain/packet
+CGATT=[<state>]
• +CME ERROR: <err>
• OK
• ERROR
domain service
Show the current
setting
+CGATT?
• +CGATT: <state>
• OK
• ERROR
Show if the command
is supported
+CGATT=?
• +CGATT: (list of
supported <state>s)
• OK
• ERROR
Used to attach the MS to, or detach the MS from, the GPRS/packet
domain service. After the command has completed, the MS remains in
V.250 command state. If the MS is already in the requested state, the
command is ignored and the OK response is returned. If the requested
state cannot be achieved, an ERROR or +CME ERROR response is
returned. Extended error responses (enabled by the +CMEE command)
Any active PDP contexts will be automatically deactivated when the
attachment state changes to detached.
Note!
This command has the characteristics of both the V.250 action and
parameter commands. Hence it has the read form in addition to the
execution/set and test forms.
<state>
Description
0
1
Detached
Attached
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6. DATA - GPRS
6.3 AT+CGDATA Enter Data State
Description
Command
Possible Responses
Establish GPRS/packet
domain connection
+CGDATA=[<L2p>,[cid
[,cid>[,…]]]]
• CONNECT
• ERROR
• OK
• ERROR
Show if the command
is supported
+CGDATA=?
• +CGDATA: (list of
supported <L2P>s)
• OK
• ERROR
Causes the MS to perform whatever actions are necessary to establish
communication between the TE and the network using one or more
GPRS/packet domain PDP types. This may include performing a
GPRS/packet domain attach and one or more PDP context activations.
<L2P>
Description
PPP
Point-to-point protocol for a PDP such as IP
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6.4 AT+CGDCONT Define PDP Context
Description
Command
Possible Responses
Select PDP
context
parameters
+CGDCONT=[<cid>
[,<PDP_type> [,<APN>
[,<PDP_addr>
• +CME ERROR: <err>
• OK
• ERROR
[,<d_comp>
[,<h_comp> [,<pd1>
[,…[,pdN]]]]]]]]]
Show the
current setting
+CGDCONT?
• +CGDCONT: <cid>,
<PDP_type>,<APN>,
<PDP_addr>,<d_comp>,
<h_comp>[,<pd1>[,…[,pdN]]]
[<CR><LF>+CGDCONT:
<cid>, <PDP_type>,<APN>,
<PDP_addr>,<d_comp>,
<h_comp>[,<pd1>[,…[,pdN]]]
[...]]
• OK
• ERROR
Show if the
command is
supported
+CGDCONT=?
• +CGDCONT: (range of
supported <cid>s),
<PDP_type>,,,(list of
supported <d_comp>s),
(list of supported <h_comp>s)
[,(list of supported <pd1>s)
[,…[,(list of supported
<pdN>s)]]]
[<CR><LF>+CGDCONT:
(range of supported <cid>s),
<PDP_type>,,,(list of
supported <d_comp>s),
(list of supported <h_comp>s)
[,(list of supported
<pd1>s)[,…[,(list of supported
<pdN>s)]]] [...]]
• OK
• ERROR
Specifies PDP context parameter values for a PDP context identified by
the (local) context identification parameter, <cid>.
<cid>
Description
Integer type
(PDP Context Identifier) a numeric parameter which
specifies a particular PDP context definition. The
parameter is local to the TE-MS interface and is used in
other PDP context-related commands. The range of
permitted values (minimum value = 1) is returned by the
test form of the command
1-10
Supported values. Ericsson specific
<PDP_type>
Description
IP
Internet Protocol (IETF STD 5)
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<APN>
Description
String type
(Access Point Name) a string parameter which is a logical
name that is used to select the GGSN or the external
packet data network. If the value is null or omitted, then
the subscription value will be requested
<PDP_address>
Description
String type
A string parameter that identifies the MS in the
address space applicable to the PDP. If the value is
null or omitted, then a value may be provided by
the TE during the PDP startup procedure or, failing
that, a dynamic address will be requested
<d_comp>
Description
0
PDP data compression OFF
PDP data compression ON
Reserved
1
2..255
<h_comp>
Description
0
PDP header compression OFF
PDP header compression ON
Reserved
1
2..255
<pdN>
Description
String type
Zero to N string parameters whose meanings are specific
to the <PDP_type>
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6.5 AT+CGEREP GPRS Event Reporting
Description
Command
Possible Responses
Set command
+CGEREP=[<mode>
[,<bfr>]]
• +CME ERROR: <err>
• OK
• ERROR
Show the current
setting
+CGEREP?
• +CGEREP:
<mode>,<bfr>
• OK
• ERROR
Show if the command
is supported
+CGEREP=?
• +CGEREP: (list of
supported
<mode>s),(list of
supported <bfr>s)
• OK
• ERROR
Enables or disables the sending of unsolicited result codes, +CGEV:
XXX from MS to TE in the case of certain events occurring in the
GPRS/packet domain MS or the network.
<mode>
Description
0
Buffer unsolicited result codes in the MS. No codes are
forwarded to the TE
1
Discard unsolicited result codes when MS-TE link is
reserved; otherwise forward them directly to the TE
<bfr>
Description
0
MS buffer of unsolicited result codes defined within this
command is cleared when <mode> 1 or 2 is entered
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6.6 AT+CGPADDR Show PDP Address
Description
Command
Possible Responses
Show PDP addresses
for specified CIDs
+CGPADDR=[<cid>
[,<cid> [,…]]]
• +CGPADDR:
<cid>,<PDP_addr>
[<CR><LF>+CGPAD
DR:
<cid>,<PDP_addr>
[...]]
• OK
• ERROR
Show if the command
is supported
+CGPADDR=?
• +CGPADDR: (list of
defined <cid>s)
• OK
• ERROR
Returns a list of PDP addresses for the specified context identifiers. The
test command returns a list of defined <cid>s.
<cid>
Description
Integer type
Parameter which specifies a particular PDP context
definition (see +CGDCONT command). If no <cid> is
specified, the addresses for all defined contexts are
returned
<PDP_address>
Description
String type
A string that identifies the MS in the address space
applicable to the PDP. The address may be static or
dynamic. For a static address, it will be the one set by
the +CGDCONT command when the context was
defined. For a dynamic address it will be the one
assigned during the last PDP context activation that
used the context definition referred to by <cid>.
<PDP_address> is omitted if none is available
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6.7 AT+CGQMIN Quality of Service Profile (Minimum Acceptable)
Description
Command
Possible Responses
Set minimum
acceptable
profile
+CGQMIN=[<cid>
[,<precedence>
[,<delay> [,<reliability>
[,<peak>
• +CME ERROR: <err>
• OK
• ERROR
[,<mean>]]]]]]
Show the
current
setting
+CGQMIN?
• +CGQMIN: <cid>,
<precedence>, <delay>,
<reliability>, <peak>,
<mean>[<CR><LF>+CGQMIN:
<cid>, <precedence>,
<delay>, <reliability>, <peak>,
<mean>[…]]
• OK
• ERROR
Show if the
command is
supported
+CGQMIN=?
• +CGQMIN: <PDP_type>, (list of
supported <precedence>s),
(list of supported <delay>s),
(list of supported <reliability>s)
, (list of supported <peak>s),
(list of supported
<mean>s)[<CR><LF>+CGQMI
N: <PDP_type>, (list of
supported <precedence>s),
(list of supported <delay>s),
(list of supported <reliability>s)
, (list of supported <peak>s),
(list of supported
<mean>s)[…]]
• OK
• ERROR
Allows the TE to specify a minimum acceptable profile which is
checked by the MS against the negotiated profile returned in the
Activate PDP Context Accept message.
The set command specifies a profile for the context identified by the
(local) context identification parameter, <cid>. Since this is the same
parameter that is used in the +CGDCONT command, the +CGQMIN
command is effectively an extension to the +CGDCONT command.
The QoS profile consists of a number of parameters, each of which may
be set to a separate value.
A special form of the set command, +CGQMIN=<cid> causes the
minimum acceptable profile for context number <cid> to become
undefined. In this case no check is made against the negotiated profile.
<cid>
Description
Integer type
Parameter which specifies a particular PDP context
definition
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<precedence>
Description
0
1
2
3
Subscribed (from network) value used
High priority
Normal priority
Low priority
<delay>
Description
0
Subscribed (from network) value used
Delay class
1-4
<reliability>
Description
0
Subscribed (from network) value used
Reliability class
1-5
<peak>
Description
0
1
2
3
4
5
6
7
8
9
Subscribed (from network) value used
Up to 1000 (8kbits/s)
Up to 2000 (16kbits/s)
Up to 4000 (32kbits/s)
Up to 8000 (64kbits/s)
Up to 16000 (128kbits/s)
Up to 32000 (256kbits/s)
Up to 64000 (512kbits/s)
Up to 128000 (1024kbits/s)
Up to 256000 (2048kbits/s)
<mean>
Description
0
1
2
3
4
5
6
7
Subscribed (from network) value used
Best effort
100 (~0.22bits/s)
200 (~0.44bits/s)
500 (~1.11bits/s)
1000 (~2.2bits/s)
2000 (~4.4bits/s)
5000 (~11.1bits/s)
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<mean>
Description
8
10000 (~22bits/s)
9
20000 (~44bits/s)
10
11
12
13
14
15
16
17
18
31
50000 (~111bits/s)
100000 (~0.22kbits/s)
200000 (~0.44kbits/s)
500000 (~1.11kbits/s)
1000000 (~2.2kbits/s)
2000000 (~4.4kbits/s)
5000000 (~11.1kbits/s)
10000000 (~22kbits/s)
20000000 (~44kbits/s)
50000000 (~111kbits/s)
6.8 AT+CGQREQ Quality of Service Profile (Requested)
Description
Command
Possible Responses
Set quality
of service
profile
+CGQREQ=[<cid>
[,<precedence>
[,<delay>
• +CME ERROR: <err>
• OK
• ERROR
[,<reliability>
[,<peak>
[,<mean>]]]]]]
Show the
current
setting
+CGQREQ?
• +CGQREQ: <cid>, <precedence>,
<delay>, <reliability>, <peak>,
<mean>[<CR><LF>+CGQREQ:
<cid>, <precedence>, <delay>,
<reliability>, <peak>, <mean>[…]]
• OK
• ERROR
Show if the
command
is supported
+CGQREQ=?
• +CGQREQ: <PDP_type>,
(list of supported <precedence>s),
(list of supported <delay>s),
(list of supported <reliability>s),
(list of supported <peak>s),
(list of supported <mean>s)
[<CR><LF>+CGQREQ: <PDP_type>,
(list of supported <precedence>s),
(list of supported <delay>s),
(list of supported <reliability>s),
(list of supported <peak>s),
(list of supported <mean>s)[…]]
• OK
• ERROR
Allows the TE to specify a quality of service profile that is used when
the MS sends an activate PDP context request message to the network.
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The set command specifies a profile for the context identified by the
(local) context identification parameter, <cid>. Since this is the same
parameter that is used in the +CGDCONT command, the +CGQREQ
command is effectively an extension to the +CGDCONT command.
The QoS profile consists of a number of parameters, each of which may
be set to a separate value.
A special form of the set command, +CGQREQ= <cid> causes the
requested profile for context number <cid> to become undefined.
<cid>
Description
Integer type
Parameter which specifies a particular PDP context
definition
<precedence>
Description
0
1
2
3
Subscribed (from network) value used
High priority
Normal priority
Low priority
<delay>
Description
0
Subscribed (from network) value used
Delay class
1-4
<reliability>
Description
0
Subscribed (from network) value used
Reliability class
1-5
<peak>
Description
0
1
2
3
4
5
6
7
8
9
Subscribed (from network) value used
Up to 1000 (8kbits/s)
Up to 2000 (16kbits/s)
Up to 4000 (32kbits/s)
Up to 8000 (64kbits/s)
Up to 16000 (128kbits/s)
Up to 32000 (256kbits/s)
Up to 64000 (512kbits/s)
Up to 128000 (1024kbits/s)
Up to 256000 (2048kbits/s)
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<mean>
Description
0
Subscribed (from network) value used
Best effort
1
2
100 (~0.22bits/s)
3
200 (~0.44bits/s)
4
500 (~1.11bits/s)
5
1000 (~2.2bits/s)
6
2000 (~4.4bits/s)
7
5000 (~11.1bits/s)
8
10000 (~22bits/s)
9
20000 (~44bits/s)
10
11
12
13
14
15
16
17
18
31
50000 (~111bits/s)
100000 (~0.22kbits/s)
200000 (~0.44kbits/s)
500000 (~1.11kbits/s)
1000000 (~2.2kbits/s)
2000000 (~4.4kbits/s)
5000000 (~11.1kbits/s)
10000000 (~22kbits/s)
20000000 (~44kbits/s)
50000000 (~111kbits/s)
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6. DATA - GPRS
6.9 AT+CGREG GPRS Network Registration Status
Description
Command
Possible Responses
Set command
AT+CGREG=[<n>]
• +CME ERROR: <err>
• OK
• ERROR
Show the current
setting
AT+CGREG?
• +CGREG:
<n>,<stat>[,<lac>,
<ci>]
• +CME ERROR: <err>
• OK
• ERROR
Show if the command
is supported
AT+CGREG=?
• +CGREG: (list of
supported <n>s)
• OK
• ERROR
Controls the presentation of an unsolicited result code +CGREG: <stat>
when <n>=1 and there is a change in the GPRS/packet domain network
registration status of the MS, or code +CGREG: <stat>[,<lac>,<ci>]
when <n>=2 and there is a change of the network cell.
Note!
If the GPRS/Packet Domain MS also supports circuit mode services, the
+CGREG command and +CGREG: result code apply to the registration
status and location information for those services.
<n>
Description
0
1
2
Disable network registration unsolicited result code
Enable network registration unsolicited result code
Enable network registration and location information
unsolicited result code
<stat>
Description
0
Not registered, MS is not searching for a new operator to
register with
1
2
Registered, home network
Not registered, but MS is searching for a new operator to
register with
3
4
5
Registration denied
Unknown
Registered, roaming
<lac>
Description
String type
Two byte location area code in hexadecimal format
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<ci>
String type
Description
Two byte cell ID in hexadecimal format
Example
AT+CGREG?
+CGREG: 0,3
OK
6.10 AT+CGSMS Select Service for MO SMS Messages
Description
Command
Possible Responses
Set service or service
preference
+CGSMS=[<service>]
• OK
• ERROR
Show the current
setting
+CGSMS?
• +CGSMS: <service>
• OK
• ERROR
Show if the command
is supported
+CGSMS=?
• +CGSMS: (list of
available
<service>s)
• OK
• ERROR
Used to specify the service or service preference that the MS will use to
send MO SMS messages. The read command returns the currently
selected service or service preference.
<services>
Description
2
GPRS/packet domain preferred (use circuit switched if
GPRS/packet domain not available)
3
Circuit switched preferred (use GPRS/packet domain if
circuit switched not available)
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7. Data - HSCSD
7.1 AT+CHSC
HSCSD Current Call Parameters
Description
Command
Possible Responses
Show the current
setting
AT+CHSC
• +CHSC:<rx>,<tx>,<aiur>,<coding>
• +CME ERROR: <err>
• OK
• ERROR
Show if the
command is
supported
AT+CHSC=?
• +CME ERROR: <err>
• OK
• ERROR
Returns information about the current HSCSD call parameters, i.e. the
current number of receive and transmit timeslots, air interface user rate
and channel coding.
<rx>
Description
0
1
2
No HSCSD call is active. See also note below
The number of receive timeslots currently in use is 1
The number of receive timeslots currently in use is 2
<tx>
Description
0
1
No HSCSD call is active. See also note below
The number of transmit timeslots currently in use is 1
<aiur>
Description
0
1
3
No HSCSD call is active. See also note below.
Current air interface user rate is 9.6kbits/s
Current air interface user rate is 19.2kbits/s
<coding>
Description
0
4
8
No HSCSD call is active. See also note
Current channel coding is 9.6kbits/s (TCH/F9.6)
Current channel coding is 14.4kbits/s (TCH/F14.4)
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7.2 AT+CHSD
HSCSD Device Parameters
Description
Command
Possible Responses
Show the current
setting
AT+CHSD
• +CHSD:
<mclass>,<maxRx>,
<maxTx>,<sum>,<codings>
• +CME ERROR: <err>
• OK
• ERROR
Show if the command
is supported
AT+CHSD=?
• +CME ERROR: <err>
• OK
• ERROR
Shows information about HSCSD features supported by the ME/TA.
<mclass>
Description
2
Multislot class is 2
<maxRx>
Description
2
Maximum number of receive timeslots that ME can use is 2
<maxTx>
Description
1
Maximum number of transmit timeslots that ME can use is 1
<sum>
Description
3
Total number of receive and transmit timeslots that ME
can use at the same time is 3 (i.e. 2+1). The following
applies in a HSCSD call: 2 (receive slots) + (transmit slots)
<sum>
<codings>
Description
4
Indicates that the accepted channel coding for the next
established non-transparent HSCSD call is 9.6kbits/s only
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7.3 AT+CHSN
HSCSD Non Transparent Call Configuration
Description
Command
Possible Responses
Set HSCSD
AT+CHSN=[<wAiur>
[,<wRx>[,<topRx>
[,<codings>]]]]
• +CME ERROR: <err>
• OK
• ERROR
configuration. This
command is also used
during a call if new
<wAiur> and/or <wRx>
are/is desired
Show the current
setting
AT+CHSN?
• +CHSN: <wAiur>,
<wRx>, <topRx>,
<codings>
• +CME ERROR: <err>
• OK
• ERROR
Show if the command
is supported
AT+CHSN=?
• +CHSN: (list of
supported <wAiur>s),
(list of supported
<wRx>s), (list of
supported <topRx>s),
(list of supported
<codings>s)
• +CME ERROR: <err>
• OK
• ERROR
Controls parameters for non-transparent HSCSD calls. Changing
<topRx> or <codings> during a call does not affect the current call.
Changing <wAiur> or <wRx> affects the current call only if <topRx>
was non-zero when the call was established. When using the command
in this way it comes in the “action” command category. This is what is
referred to as user initiated up- and down-grading in GSM 02.34 and
GSM 03.34.
Note!
Recommended value for parameter <speed> in AT+CBST is 0.
<wAiur>
Description
0
TA/ME shall calculate a proper number of receive
timeslots from currently selected fixed network user rate
(<speed> parameter from +CBST command, and
<codings>, and <wRx> (or <maxRx> from +CHSD
command if <wRx>=0)
1
2
3
4
Wanted air interface user rate is 9.6kbit/s
Wanted air interface user rate is 14.4kbit/s
Wanted air interface user rate is 19.2kbit/s
Wanted air interface user rate is 28.8kbit/s
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<wRx>
Description
0
TA/ME shall calculate a proper number of receive
timeslots from currently selected <wAiur> and <codings>
See note below
1
2
Wanted number of receive timeslots is 1
Wanted number of receive timeslots is 2
<topRx>
Description
0
Indicates that the user is not going to change <wAiur>
and /or <wRx> during the next call
1
2
Top value for <wRx> that user is going to request during
the next established non-transparent HSCSD call is 1
Top value for <wRx> that user is going to request during
the next established non-transparent HSCSD call is 2
<codings>
Description
4
Indicates that the accepted channel coding for the next
established non-transparent HSCSD call is 9.6kbit/s only
7.4 AT+CHSR
HSCSD Parameters Report
Description
Command
Possible Responses
Set HSCSD parameters
reporting on or off
AT+CHSR=[<mode>]
• +CME ERROR: <err>
• OK
• ERROR
Show the current
setting
AT+CHSR?
• +CHSR: <mode>
• +CME ERROR: <err>
• OK
• ERROR
Show if the command
is supported
AT+CHSR=?
• +CHSR: (list of
supported
<modes>s)
• +CME ERROR: <err>
• OK
• ERROR
With this command enabled, the intermediate result code +CHSR:
<rx>,<tx>,<aiur>,<coding> is returned (from TA to TE) when an
HSCSD call is being set up. The result code represents the current
(negotiated or renegotiated) HSCSD parameters. If enabled, the
intermediate result code is transmitted at the point of the call setup
negotiation, where the ME/TA has determined what type of HSCSD
connection will be used. Result code transmission is done after possible
service (CR), error control (+ER), and/or compression (+DR) reporting,
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but before possible TE-TA rate (+ILRR) reporting and before the
intermediate result code CONNECT is transmitted. The format of the
intermediate result code is:
+CHSR: <rx>,<tx>,<aiur>,<coding>
For the value definitions, refer to “AT+CHSC HSCSD Current Call
Parameters”, page 171. For instance, for a non-transparent HSCSD call,
result code ‘CHSR: 2, 1, 4, 8’ means that the call has two timeslots
downlink, one timeslot uplink, the air interface user rate is 28.8 kbits/s
and the used channel coding is
TCH/F14.4.
<mode>
Description
0
1
Disable reporting
Enable reporting
Itermediate Result Codes:
+CHSR: <rx>,<tx>,<aiur>,<coding>
7.5 AT+CHSU
HSCSD Automatic User Initiated Upgrading
Description
Command
Possible Responses
Set HSCSD automatic
user initiated
upgrading on or off
AT+CHSU=[<mode>]
• OK
• ERROR
Show the current
setting
AT+CHSU?
• +CHSU=<mode>
• OK
• ERROR
Show if the command
is supported
AT+CHSU=?
• +CHSU: (list of
supported
<modes>s)
• OK
• ERROR
Enables or disables the HSCSD automatic user-initiated upgrade.
<mode>
Description
0
1
Disable use of UP bit for upgrading. Default value
Enable use of UP bit for upgrading
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8. GPS Interoperability
8.1 AT*EENMEA NMEA (GPS) Mode on UART2
Description
Command
Possible Responses
Enable NMEA
commands on the
UART
AT*EENMEA=<mode>
• OK
• ERROR
• +CME ERROR: < err>
Show the current
setting
AT*EENMEA?
AT*EENMEA=?
• *EENMEA:<mode>
• +CME ERROR: <err>
Shows if the command
is supported
• *EENMEA: (list of
supported
<mode>s)
• +CME ERROR: < err>
This command enables transmission of NMEA commands from
UART1 to UART2 and vice versa. The module acts as a transparent link
between the GPS device connected to UART2 and the application
communicating with it on UART1.
When the application sends the command AT*EENMEA=2 the module
is able to handle both AT and NMEA commands simultaneously. If the
OK response is received the application can start handling both NMEA
and AT commands. Otherwise the response ERROR is returned.
In the mode with simultaneous AT and NMEA commands, <CR> is
required after each NMEA command and after the last AT command
before the new NMEA. NMEA commands must start with a $. All
NMEA commands are forwarded to UART2. All NMEA responses
from UART2 are displayed as responses to UART1 along with AT
responses.
By sending AT*EENMEA=0, the application ends AT and NMEA
commands, simultaneous handling mode. It sends OK, and then returns
to AT mode.
The port rate of UART1 for NMEA commands can be controlled using
the AT*NMPR command.
Responses
Description
OK
The requested action has been performed
ERROR
Following causes of error are considered:
- incorrect syntax
- NMEA commands have already been enabled in other
07.10 channels
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<mode>
Description
0
2
Disable NMEA communication. Default value
Enable NMEA communication simultaneously with AT
commands
8.2 AT*E2NMPR Ericsson M2M Set NMEA (GPS) Port Rate
Description
Command
Possible Responses
Request operation to
set data rate for GPS/
NMEA Port
AT*E2NMPR=<pr>
• ERROR
• OK
Show the current
setting
AT*E2NMPR?
AT*E2NMPR=?
*E2NMPR: <pr>
Show if the command
is supported
• *E2NMPR: (list of
supported <pr>s)
• ERROR
This command allows the user to set the physical Data rate for the GPS/
NMEA port. The port rate will be set for the GPS/NMEA port only
when NMEA is active - see AT*EENMEA.
<op>
Description
o
1
600 Baud rate
1200 Baud rate
2
2400 Baud rate
3
4800 Baud rate
4
9600 Baud rate. Default value
19200 Baud rate
38400 Baud rate
57600 Baud rate
115200 Baud rate
230400 Baud rate
460800 Baud rate
5
6
7
8
9
10
Examples
AT*E2NMPR=?
*E2NMPR=(0-10)
OK
Port rate currently set:
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AT*E2NMPR?
*E2NMPR: 4
OK
Set GPS/NMEA port rate to 4800 baud:
AT*E2NMPR=2
OK
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9. Fax
9.1 AT*E2FAX
Ericsson M2M Fax Comm. Baud Rate Modification
Description
Command
Possible Responses
Request change of fax
comm. baud rate
AT*E2FAX= <RcV>
• ERROR
• OK
Show the current
setting
AT*E2FAX?
• *E2FAX: <RcV>
• ERROR
Shows if the command
is supported
AT*E2FAX=?
• *E2FAX: (list of
supported <RcV>s)
• ERROR
This command allows the modification of the factory default RS232
comm. setting between standard 9600 baud and 19200 baud. This is
needed as the addition of fax capabilities, within the module, require
communication between fax applications and the module to run at a
higher baud rate than the fax transmission baud rate (In this case the
fastest transmission rate is 9600 baud). Once this command has been
performed, the user must then execute the AT&F command to reset the
module with the new RS232 comm's baud rate.
The AT*E2FAX command allows the user to:
• “Configure” the RS232 Comm. speed default factory profile,
specifying whether the speed should be 9600 baud (standard) or
19200 baud for FAX application comm. This value will then be used
once the AT&F command is next used.
• “Read” what value this default factory profile has been set to.
<RcV>
Description
0
1
Configure RS232 default setting to 9600 baud
Configure RS232 default setting to 19200 baud
Examples
AT*E2FAX=?
*E2FAX= (0-1)
OK
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AT*E2FAX?
*E2FAX: 0
OK
(Current default setting is 19200 baud)
(Sets default RS232 setting to 9600 baud)
AT*E2FAX=0
OK
9.2 Low Level Fax Commands
The following table of low level fax commands are supported and used
by the GM47 for fax operation.
AT+FAA
AT+FBADLIN
AT+FBUG
AT+FCQ
AT+FDFFC
AT+FDT
AT+FBADMUL
AT+FCIG
AT+FCR
AT+FBOR
AT+FCLASS
AT+FDCC
AT+FDR
AT+FDIS
AT+FECM
AT+FLID
AT+FET
AT+FK
AT+FLNFC
AT+FMFR?
AT+FMM?
AT+FPTS
AT+FLPL
AT+FMI?
AT+FMR?
AT+FRBC
AT+FRH
AT+FMDL?
AT+FMINSP
AT+FPHCTO
AT+FREL
AT+FREV?
AT+FRS
AT+FRM
AT+FSPL
AT+FTM
AT+FTBC
AT+FTS
AT+FTH
AT+FVRFC
AT+FWDFC
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10. Identification
10.1 AT
Attention Command
Description
Command
Possible Responses
Checks the communication
between the MS and
application
AT
• OK
• +CME ERROR <err>
This command is used to determine the presence of an MS. If the MS
supports AT commands, it returns an OK final result code.
10.2 AT&F
Set to Factory Defined Configuration
Description
Command
Possible Responses
Execute
AT&F
• OK
• ERROR
Show if the command
is supported
AT&F=?
&F: (list of supported
<profile>s)
This command instructs the DCE to set all parameters to default values
specified by the manufacturer, which may take in consideration
hardware configuration and other manufacturer defined criteria.
10.3 AT&W
Store User Profile
Description
Command
Possible Responses
Stores the current user
profile to non volatile
memory
AT&W=[<pr>] or
AT&W[<pr>]
• OK
• ERROR
Show if the command
is supported
AT&W=?
&W: (list of supported
<pr>s)
This command stores the current user profile in non-volatile memory.
< pr>
Description
0
Stores current settings in User Profile 0
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10.4 AT*
List all Supported AT Commands
Description
Command
Possible Responses
List all implemented AT
commands
AT*
<AT Command1>
[<CR> <LF>
<AT Command2>[…]]
/
<AT Command1>
[<CR> <LF>
<AT Command2>[…]]
Lists all the commands supported by the MS.
10.5 AT+CGMI Read MS Manufacturer Identification
Description
Command
Possible Responses
Request manufacturer
identification
AT+CGMI
• <manufacturer>
• +CME ERROR: <err>
Show if the command
is supported
AT+CGMI=?
• OK
• ERROR
Causes the MS to return one or more lines of information text.
<manufacturer>
Description
Sony Ericsson
This company’s name is displayed
Example
AT+CGMI
Sony Ericsson
OK
10.6 AT+CGMM Read MS Model Identification
Description
Command
Possible Responses
Request the model
identification
AT+CGMM
• <model type>
<model name>
• +CME ERROR: <err>
Show if the command
is supported
AT+CGMM=?
• OK
• ERROR
Causes the MS to return one or more lines of information text <model>,
determined by the MS manufacturer. It is intended to permit the user of
the ITAE/ETAE to identify the specific model of the MS to which it is
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10. IDENTIFICATION
connected. Typically the text will consist of a single line containing the
name of the product, but manufacturers may choose to provide more
information if desired.
<model type>
Description
String type
A unique ASCII character/digit string, always 10
characters long. Spaces are used when the number of
characters/digits is less than 10
<model name>
Description
String type
Model name for the transceiver unit, for example, GM47
Example
AT+CGMM
6100501-BVGM47
OK
10.7 AT+CGMR Read MS Revision Identification
Description
Command
Possible Responses
Request MS revision
identification string
AT+CGMR
• <revision>
• +CME ERROR: <err>
Show if the command
is supported
AT+CGMR=?
• OK
• ERROR
This command causes the MS to return a string containing information
about the software version.
<revision>
Description
String type
An ASCII string containing date (year, month, day, hour,
minute) plus KRC number.
Example: 9710051610 CXC125112
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10.8 AT+CGSN Read MS Product Serial Number Identification
Description
Command
Possible Responses
Request product serial
number
AT+CGSN
• <sn>
• +CME ERROR: <err>
Show if the command
is supported
AT+CGSN=?
• OK
• ERROR
This command causes the MS to return the IMEI (International Mobile
station Equipment Identity), which identifies the individual ME.
<sn>
Description
String
The IMEISV, which is the IMEI (International Mobile station
Equipment Identity; refer GSM 03.03) number of the ME and the
software version number. Text shall not contain the sequence
0<CR> or OK<CR>
10.9 AT+GMI
Read Manufacturer Identification
Description
Command
Possible Responses
Request manufacturer
identification
AT+GMI
<manufacturer>
Show if the command
is supported
AT+GMI=?
• OK
• ERROR
This command causes the DCE to transmit one or more lines of
information text. Typically, the text will consist of a single line
containing the name of the manufacturer, but may provide more
information such as address and telephone number for customer
service.
<manufacture>
Description
string type
The total number of characters, including line
terminators, in the information text returned in response
to this command shall not exceed 2048 characters.
Note that the information text shall not contain the
sequence “0” or “OK”, so that DTE can avoid false
detection of the end of this information text
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10.10 AT+GMM Read Model Identification
Description
Command
Possible Responses
Request revision
identification
AT+GMM
<model>
Show if the command
is supported
AT+GMM=?
• OK
• ERROR
This command causes the DCE to transmit one or more lines of
information text, determined by the manufacturer, which is intended to
permit the user of the DCE to identify the specific model of device.
Typically, the text will consist of a single line containing the name of
the product, but manufacturers may choose to provide any information
desired.
<model>
Description
string type
The total number of characters, including line terminators,
in the information text returned in response to this
command shall not exceed 2048 characters. Note that
the information text shall not contain the sequence “0 ” or
“OK”, so that DTE can avoid false detection of the end of
this information text
10.11 AT+GMR Read Revision Identification
Description
Command
Possible Responses
Request revision
identification
AT+GMR
<revision>
Show if the command
is supported
AT+GMR=?
• OK
• ERROR
This command returns a manufacturer specified software revision name
in a text string.
<revision>
Description
string type
The total number of characters, including line terminators,
in the information text returned in response to this
command shall not exceed 2048 characters. Note that
the information text shall not contain the sequence “0” or
“OK”, so that DTE can avoid false detection of the end of
this information text.
Example
AT+GMR
R2A009prgCXC1122112
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10.12 ATI
Identification Information
Description
Command
Possible Responses
Execute
ATI[<value>]
<information>
This command causes the DCE to transmit one or more lines of text,
followed by a final result code. As an option, <value> can be used to
select from among multiple types of identifying information as shown
in the table below.
This command provides compatibility with Microsoft Windows 95.
<value>
Description
0
Same information as +GMM command (model
identification)
1
Same information as +GMR command (revision
identification)
3
5
7
Modem model description
Active settings
Modem configuration profile (brief listing of the modem
functionality: fax classes, Bluetooth, IrDA, modem type,
etc.)
8
9
DCE hardware type version
PnP (plug and play) information
Examples
ATI=1
CXC1122112
ATI=5
Configuration Settings on Channel 0
&C: 1
&D: 0
*EENMEA: 0
+CGACT: 1,0
+CGATT: 0
+CGDCONT: 1,“IP”,“internet”,“”,0,0
+CGEREP: 0,0
+CGREG: 0,3
+CHSR: 0
+CHSU: 0
+CMEE: 1
+CMUX: 0,0,1,31,10,3,30,10,2
+CR: 0
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+CRC: 0
+CRLP: 61,61,48,6,0
+CRLP: 120,120,48,6,2,3
+CVHU: 2
+ICF: 3,3
+IFC: 2,2
+ILRR: 0
+IPR: 115200
E: 1
M: 0
Q: 0
S0: 000
S10: 002
S2: 043
S3: 013
S4: 010
S5: 008
S6: 002
S7: 050
S8: 002
V: 1
X: 4
OK
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11. Input/Output
11.1 AT*E2IO
Ericsson M2M Input/Output Read/Write
Description
Command
Possible Responses
Request operation
with the I/O signals
AT*E2IO=<op>,<io>
[,<val>][,<adc_val>]
• ERROR
• OK
• *E2IO: <op>,<io>[,[<val>]
[,<adc_val>]]
OK
Show if the
command is
supported
AT*E2IO=?
• *E2IO: (list of supported
<op>s), <io>s,(list of
supported <val>s),(list of
supported <adc_val>s)
• ERROR
Description:
The module has 8 digital I/Os; 4 configurable GPIOs, 1 input-only, and
3 output-only.
The module also has 3 ADCs, and 1 DAC. All of these signals are
controlled by the AT*E2IO command.
Note!
IO1 to IO4 are set to INPUT as a factory default. Their status (Input/
Output) is stored in non-volatile memory.
Set command controls the operations with the I/O signals for the M2M
devices. It is possible to perform up to 5 operations. These operations
have the following meaning:
• Read (<op> = 0): It reads the state of the specified signal. It returns
the binary state of digital signals or value (0-255) of an ADC input
or the DAC output. In case of a digital I/O the command has the
following syntax:
AT*E2IO=0,“IO1”
*E2IO: 0,“IO1”,0
OK
If reading from the ADC/DACs:
AT*E2IO=0,“AD1”
*E2IO: 0,“AD1”,,62
OK
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• Write (<op> = 1): Sets an output to a specific value. For digital
sources <val>=‘0’ or ‘1’ and for the analog ones, 0-255. If the signal
is bi-directional (IO1 to IO4) it must be configured as an output
before writing is allowed. If the output can be written to, the signal is
set to <val> and OK is returned, otherwise ERROR is returned.
AT*E2IO=1,“IO1”,1
OK
or
AT*E2IO=1,“DA1”,,100
OK
• Configure (<op> = 2): The configuration operation is used for the
bi-directional signals (IO1 to IO4). They can be configured as input,
<val>= ‘0’ or output, <val>=‘1’. If the signal is not configurable,
ERROR is returned in place of OK. Once set, the signal remains
configured even after a power cycle. Example shown below:
AT*E2IO=2,“IO1”,1 (Set IO1 as an output)
OK
• Configure Check (<op> = 3): This operation reads the current
configuration of the signal. Returned <val> is current signal state. If
the signal is configurable, the current state and OK are returned, if
not ERROR is returned.
AT*E2IO=3,“IO1”
*E2IO: 3,“IO1”,1
(IO1 is currently set as an output)
OK
• Trigger (<op> = 4): Input signals can be set to send an unsolicited
result code whenever a change in one of the inputs has been
produced. Setting a trigger (<val> = ‘1’) will cause the unsolicited
result to be sent when a change from the current signal state occurs
(signal must be unchanging when command is executed). Clearing a
trigger (<val> = ‘0’) will clear a currently set trigger. Configurable
signals (IO1 to IO4) must be set as inputs before they can be
triggered. Triggers are only applicable while the module is ON.
Power-cycling will clear all current triggers. If a signal is triggerable
OK is returned and the trigger is set/cleared, otherwise ERROR is
returned.
AT*E2IO=4,“I5”,1
OK
(Set trigger on I5)
(I5 changes state, sometime later)
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11. INPUT/OUTPUT
*E2IO: 3,“I5”,1
(I5 triggered, current state ‘1’)
• Trigger Check (<op> = 5): Checks if a signal input is configured as
a trigger. Returned <val> shows the current trigger state; ‘1’ for
triggered or ‘0’ for not triggered. If the signal is triggerable, the
current trigger status and OK are return, otherwise ERROR is
returned.
AT*E2IO=5,“I5”
*E2IO: 5,“I5”,1
(I5 is currently set to trigger)
OK
The test command returns the supported I/Os and allowed value ranges.
Abortability:
This command may not be aborted.
<op>
Description
0
1
2
3
4
5
Read
Write
Configure
Configure Check
Trigger
Trigger Check
<io>
Description
“IO1”
“IO2”
“IO3”
“IO4”
“I5”
Digital Input 1. Supported Operations: 0,1,2,3,4,5
Digital Input 2. Supported Operations: 0,1,2,3,4,5
Digital Input 3. Supported Operations: 0,1,2,3,4,5
Digital Input 4. Supported Operations: 0,1,2,3,4,5
Digital Input 5. Supported Operations: 0,4,5
“O5”
“O6”
“O7”
“DA1”
“AD1”
“AD2”
“AD3”
Digital Output 5. Supported Operations: 0,1
Digital Output 6. Supported Operations: 0,1
Digital Output 7. Supported Operations: 0,1
Digital/Analogue Input: Supported Operations: 0,1
Analogue/Digital Output 1: Supported Operations: 0
Analogue/Digital Output 2: Supported Operations: 0
Analogue/Digital Output 3: Supported Operations: 0
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<val>
Description
Configure
Read/Write
Trigger
0
1
The logic value is
FALSE
I/O signal is INPUT
I/O signal is NOT set
to trigger
Logic value is TRUE
I/O signal is OUTPUT
I/O signal is set to
trigger
<adc_val>
Description
0-255
The decimal value shall represent the analogue voltage it
is hold on the I/O. Applicable only to A/D or D/A signals.
Unsolicited Result Codes:
*E2IO: <source>, <io>, <val>
Scenario Cases
Reading an I/O:
AT Command
Response
Comment
AT*E2IO=0,“I1”
The TE is requesting for the
logic value of I1 (Digital Input
1)
*E2IO:0,“I1”,1
OK
The MS responds I1 has a TRUE
logic value
AT*E2IO=0,“AD1”
The TE is requesting for the
reading of AD1 value
(Analogue Input 1)
*E2IO:0,“AD1”, ,87
OK
The MS responds AD1 has a
decimal value of 87. In volts:
((2.75*0.9)/256)*87 = 0.841V
Writing in an Output:
AT Command
Response
Comment
AT*E2IO=1,“O1”,1
The TE is requesting to write a
TRUE logic to O1 (Digital
Output 1)
OK
The MS responds OK because
the operation has been
performed
AT*E2IO=1,“I3”,0
The TE is requesting to write a
FALSE logic value to I3 (Digital
Input 3)
ERROR
The MS responds ERROR
because the operation is not
possible
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AT Command
Response
Comment
AT*E2IO=1,“DA1”,95
The TE is writing 95 decimal
value to hold a voltage of:
((2.75*0.9)/256)*95 = 0.918V
OK
The MS responds OK because
the operation has been
performed
Configuring an I/O:
AT Command
Response
Comment
AT*E2IO=2,“I1”,0
or
AT*E2IO=2,“O1”,0
The TE is requesting to
configure IO1 as an input
OK
The MS responds OK because
the operation has been
performed
AT*E2IO=2,“I4”,1
or
AT*E2IO=2,“O4”,1
The TE is requesting to
configure IO4 as an output
OK
The MS responds OK because
the operation has been
performed
Checking an I/O status:
AT Command
Response
Comment
AT*E2IO=3,“I1”
or
AT*E2IO=3,“O1”
The TE is requesting to check
the configuration of the IO1
signal
*E2IO:3,“I1”,0
The MS responds IO1 is
configured as an input
OK
or
*E2IO:3,“O1”,0
OK
AT*E2IO=3,“I4”
or
AT*E2IO=3,“O4”
The TE is requesting to check
the configuration of the IO4
signal
*E2IO:3,“I4”,1
The MS responds IO4 is
configured as an output
OK
or
*E2IO:3,“O4”,1
OK
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Triggering an Input:
AT Command
Response
Comment
AT*E2IO=4,“I1”,1
The TE is requesting to trigger
Input 1
OK
The MS responds OK because
the operation has been
performed
AT*E2IO=4,“I4”,0
The TE is requesting to not
trigger Input 4
OK
The MS responds OK because
the operation has been
performed
*E2IO:4,“I1”,1
OK
An event has occurred. The
input 1 has triggered on
changing the input to logic
value 1
Checking an Input Trigger:
AT Command
Response
Comment
AT*E2IO=5,“I1”
The TE is requesting the trigger
state of the Input 1
*E2IO=5,“I1”,1
OK
The MS responds that I1 has its
trigger active
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12. Interface
12.1 AT+CPIN
PIN Control
12.2 AT&C
Circuit 109 (DCD) Control
Description
Command
Possible Responses
Set behavior of carrier
detect
AT&C[<value>]
OK
ERROR
Determines the behaviour of the carrier detect.
<value>
Description
0
1
DCD always on
DCD follows the connection. Default value
12.3 AT&D
Circuit 108 (DTR) Response
Description
Command
Possible Responses
Control actions from
DTE
AT&D[<value>]
OK
ERROR
Controls all actions initiated by data terminal ready from DTE.
<value>
Description
0
1
Ignore. Default value
When in on-line data mode, switch to on-line command
mode. For all other states, see <value>=2
2
Disconnect and switch to off-line command mode
12.4 AT&S
Circuit 107 (DSR) Response
This command is not availalbe in software releases up to and including
R2A.
Description
Command
Possible Responses
Set behaviour of data
set ready
AT&S[<value>]
• OK
• ERROR
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Determines the behaviour of the data set ready signal.
<value>
Description
0
1
DSR always on
DSR on in data mode. DSR off in command mode. Default
value
12.5 AT+WS46
Mode Selection
Description
Command
Possible Responses
Sets the cellular
protocol mode
AT+WS46=n
• OK
• ERROR
Show the current
setting
AT+WS46?
• <n> OK
• ERROR
Show if the command
is supported
AT+WS46=?
• (list of supported <n>s) OK
• ERROR
Allows an accessory to query and control the cellular protocol mode of
the phone.
<n> parameter
Description
12
This value is used for GSM at 900 Mhz., DCS-1800, and
PCS-1900 phones
12.6 ATE
Command Echo
Description
Command
Possible Responses
Request Command
Echo
ATE[<value>]
ATE=[<value>]
• OK
• ERROR
Show the current
setting
ATE?
<value>
Show if the command
is supported
ATE=?
E: (list of supported
<value>s)
The setting of this parameter determines whether or not the DCE echoes
characters received from the DTE during command state and online
command state.
<value>
Description
0
DCE does not echo characters during command state and
online command state
1
DCE echoes characters during command state and online
command state. Default value
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12.7 ATV
DCE Response Format
Description
Command
Possible Responses
Set DCE response
format
ATV[=]<value>
• OK
• ERROR
Show the current
setting
ATV?
V: <value>
Show if the command
is supported
ATV=?
V: (list of supported
<value>s)
Select either descriptive or numeric response codes. The ATV
command sets the verbose numeric response codes and strips off the
<S3><S4> additions to the command response.
<value>
Description
0
1
Display numeric result codes
Display verbose result codes. Default value
List of result codes
ATV1/ATV=1
ATV0/ATV=0
Description
OK
0
1
Acknowledges execution of a
command
CONNECT
A connection has been established;
the DCE is moving from command
state to online data state
RING
2
3
The DCE has detected an incoming
call signal from the network
NO CARRIER
The connection has been terminated
or the attempt to establish a
connection failed
ERROR
4
Command not recognized, command
line maximum length exceeded,
parameter value invalid, or other
problem with processing the command
line
NO DIALTONE
BUSY
6
7
8
No dial tone detected
Engaged (busy) signal detected
NO ANSWER
“@” (Wait for Quiet Answer) dial
modifier was used, but remote ringing
followed by five seconds of silence was
not detected before expiration of the
connection timer
CONNECT
<TEXT>
Manufacturer
-specific
Same as CONNECT, but includes
manufacturer-specific text that may
specify DTE speed, line speed, error
control, data compression, or other
status
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12.8 ATZ
Reset to Default Configuration
Description
Command
Possible Responses
Execute
ATZ
• OK
• ERROR
Execute
ATZ=<profile>
ATZ=?
• OK
• ERROR
Show if supported and
list available
parameter range
Z: (list of supported
<profile>s)
This command instructs the DCE to set all parameters to their default
values as specified by the user. Consider hardware configuration
switches or non-volatile parameter storage (if implemented) when using
this command.
Commands included on the same command line as the Z command will
be ignored.
<profile >
Description
0
Select the user profile to restore
12.9 AT+CMUX Switch to 07.10 Multiplex Protocol
Description
Command
Possible Responses
Switch to 07.10
AT+CMUX=<transpa
rency>[,<subset>[,
<port_speed>[,<N1>
[,<T1>[,<N2>[,<T2>
[,<T3>[,<k>]]]]]]]]
+CME ERROR: <err>
Show the current
setting
AT+CMUX?
• +CMUX:<transparency>,
<subset>,<port_speed>,<N1>
,<T1>,<N2>,<T2>,<T3>[,<k>]
• +CME ERROR: <err>
Show if the
command is
supported
AT+CMUX=?
• +CMUX: (list of supported
<transparency>s),
(list of supported <subset>s),
(list of supported
<port_speed>s),
(list of supported <N1>s),
(list of supported <T1>s),
(list of supported <N2>s),
(list of supported <T2>s),
(list of supported <T3>s),
(list of supported <k>)
• +CME ERROR: <err>
The command is used to turn on the multiplexer. Only “no transparency
is supported”. The parameter <k> is not used.
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The default values for the parameters below are for “no transparency”
and “only UIH frames used”.
<transparency>
Description
0
No transparency
<subset>
Description
0
Only UIH frames used
<port_speed>
Description
1
2
3
4
5
6
7
9600bits/s
19200bits/s
38400bits/s
57600bits/s
115200bits/s
230400bits/s
460800bits/s
<N1>
Description
31
Default maximum frame size
<T1>
Description
10
100ms default timer
<N2>
Description
3
Default maximum number of re-transmissions
<T2>
Description
30
300ms default timer
<T3>
Description
10
10s default timer
<k>
Description
1..7
Window size
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12.10 AT+CRES Restore SMS Settings
Description
Command
Possible Responses
Restore settings
AT+CRES[=<profile>]
• +CMS ERROR: <err>
• OK
• ERROR
Show if the command
is supported
AT+CRES=?
• +CRES: (list of
supported
<profile>s)
• +CMS ERROR: <err>
• OK
• ERROR
Restores message service settings from non-volatile memory to active
memory. A TA can contain several profiles of settings. Settings
specified in commands Service Centre Address +CSCA, Set Message
Parameters +CSMP and Select Cell Broadcast Message Types +CSCB
(if implemented) are restored. Certain settings, such as SIM SMS
parameters, cannot be restored.
<profile>
Description
0..2
Profile number where settings are to be stored. Default
value is 0
12.11 AT+ICF
Cable Interface Character Format
Description
Command
Possible Responses
Defines DTE-DCE
character framing
AT+ICF=[format[,parity]]
• OK
• ERROR
Show the current
setting
AT+ICF?
• +ICF:
<format>,<parity>
• OK
• ERROR
Show if the
command is
supported
AT+ICF=?
• +ICF: (list of
supported
<format>s), (list of
supported <parity>s)
• OK
• ERROR
This extended-format compound parameter is used to determine the
local serial port start-stop (asynchronous) character framing used by the
DCE to accept DTE commands, and while transmitting information text
and result code, if this is not automatically determined; (Not
supported) +IPR=0 forces +ICF=0 (see +IPR).
<format>
Description
3
8 Data 1 Stop. Default value
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<parity>
Description
3
Space. Default value
Example
AT+ICF?
+ICF: 3,3
OK
12.12 AT+IFC
DTE-DCE Local Flow Control
Description
Command
Possible Responses
Defines DTE-DCE local
flow control
AT+IFC=[<by_te>,
[<by_ta>]]
• OK
• ERROR
Show the current
setting
AT+IFC?
+IFC: <by_te>,<by_ta>
Show if the command
is supported
AT+IFC=?
+IFC: (list of supported
<by_te>s,<by_ta>s)
Defines the flow control between the modem and the computer when in
on-line data mode.
No flow control is enabled in any of the command modes.
<by_te>
Description
0
1
No flow control on DTE
Xon/Xoff flow control on DCE. Control characters are
removed by the DCE interface
2
3
RTS flow control on DCE. Default value
Xon/Xoff flow control on DCE. Control characters are
passed to the remote DCE/DTE
<by_ta>
Description
0
1
2
No flow control on DCE
Xon/Xoff flow control on DTE
CTS flow control on DCE. Default value
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12.13 AT+ILRR
Cable Interface Local Rate Reporting
Description
Command
Possible Responses
Defines DTE-DCE
character framing
AT+ILRR=<value>
• OK
• ERROR
Show the current
setting
AT+ILRR?
+ILRR:<value>
Show if the command
is supported
AT+ILRR=?
+ILRR:(list of supported
<values>s)
Specifies whether or not the extended-format “+ILRR:<rate>”
information text is transmitted from the DCE to the DTE. The <rate>
reported shall represent the current (negotiated or renegotiated) DTE-
DCE rate. If enabled, the intermediate result code is transmitted after
any modulation, error control or data compression reports are
transmitted, and before any final result code (e.g. CONNECT) is
transmitted. The <rate> is applied after the final result code is
transmitted.
<value>
Description
0
Disables reporting of local port rate (+ILRR: is not
transmitted). Default value
1
Enables reporting of local port rate (+ILRR: is transmitted)
12.14 AT+IPR
Cable Interface Port Command
Description
Command
Possible Responses
Defines fixed DTE rate
AT+IPR=[rate]
• OK
• ERROR
Show the current
setting
AT+IPR?
• +IPR:<rate>
• OK
• ERROR
Show if the command
is supported
AT+IPR=?
• +IPR: (), (list of fixed-
only <rate>s)]
• OK
• ERROR
Specifies the data rate at which the DCE will accept commands, in
addition to 1200bits/s or 9600bits/s (as required in v25ter, subclause
4.3). It may be used to select operation at rates used by the DTE, which
the DCE is not capable of automatically detecting.
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The specified rate takes effect following the issuance of any result
code(s) associated with the current command line.
<rate>
Description
Discrete
integer value
The <rate> value specified shall be the rate in bits per
second at which the DTE-DCE interface should operate,
e.g. “19200” or “115200”. The rates supported by a
particular DCE are manufacturer specific.
The following rates, are supported;
1200
2400
4800
9600
19200
38400
57600
115200
230400
460800
12.15 AT*E2SPI Serial Peripheral Interface
Description
Command
Possible Responses
Set Serial Peripheral
interface
AT*E2SPI=<op>
[,<byteformat>
[,<InitSync>]]
[,<byte1>,<byte2>,...,
<byte n>]
• ERROR
• OK
• *E2SPI:
<byte1rx>,<byte2rx>,...,
<bytenrx>
OK
Show the current
setting
AT*E2SPI?
• *E2SPI: <active>,
<byteformat>
OK
Shows if the
command is
supported
AT*E2SPI=?
• *E2SPI: (list of supported
<op>s,list of supported
<byteformat>s, list of
supported <InitSync>s)
• ERROR
This command allows the user to send data via an SPI bus. The SPI bus
is made up from the IO pins (IO1 = Clock, IO2 = Data In, IO3 = Data
Out, and O6/ RI = Sync (optional)).
The bus works with the GM47 being the SPI master. The clock is
generated by the GM47, and on each clock cycle, data is both
transmitted on the Data Out pin, and received on the Data in pin. The
Sync pin (optional) can be used as a chipselect pin for latching the data
after a number of bytes have been sent. The initial state of the Sync pin
can be set, so it is toggled from that state.
Once the SPI bus is enabled, the IOs that are used can not be used for
any other purpose until the SPI is disabled. This means the AT*E2IO
command cannot modify these pins, and if the Sync pin is activated, RI
will not be output.
Three operations can be made on the SPI bus:
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SPI Enable (<op> = 255)
This command is entered to set up the SPI bus, and to enable the
relevant signals. The byte format is defined here (the number of bytes
output between toggling the Sync pin high and low). The Initial state of
the Sync pin is also defined. If the byte format is set to zero (0), then the
Sync pin is not used, and is not controlled by the SPI.
Example:
AT*E2SPI=255,2,1<CR>
OK
This command sets the SPI bus active, and the Sync pin is made toggle
every 2 bytes of output data. The initial state of the Sync pin is HIGH.
SPI Send/Receive (<op> = 1-32)
This command sends from 1 - 32 bytes of data across the enabled SPI
bus. Data is sent MSB first, from the first byte to the last byte.
Example:
AT*E2SPI=8,170,170,85,85,170,170,85,85<CR>
OK
This command sends 8 bytes (170,170,85,85,170,170,85,85) across the
SPI bus. Bytes are in decimal format.
SPI Disable (<op>= 0)
This command is sent to disable the SPI functionality, and restore use
of IO pins to other applications. The SPI bus must be disabled before
being enabled with a new set of parameters.
AT*E2SPI=0
OK
<op>
Description
0
Disable SPI bus
1-32
255
Send/ receive 1-32 bytes
Enable SPI bus
<byteformat>
Description
0
No Sync Pin function
1-32
Sync is toggled every 1-32 bytes sent/received
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<InitSync>
Description
0
1
Sync Pin initial state LOW
Sync Pin initial state HIGH
<byte x>,
Description
<byte x rx>
0-255
decimal value denoting the byte value to be sent
<active>
Description
0
1
SPI bus is active (pins are controlled by SPI)
SPI bus is not active (pins are not controlled by SPI)
12.16 AT*E2ESC M2M Escape Sequence Guard Time
Description
Command
Possible responses
Set GPRS online
command guard time
AT*E2ESC=[<gt>]
• OK
• ERROR
Show the current
setting
AT*E2ESC?
*E2ESC: <gt>
Show if the command
is supported
AT*E2ESC=?
• OK
• ERROR
Defines a guard time for the escape sequence in GPRS to return to on-
line command mode i.e. if +++AT<CR> is received either as part of the
data stream or a terminating string from the application and no further
data is received for the duration of the guard time the module will go
into on line command mode. This guards against the module
accidentally going into on line command mode. The verbose format of
+++AT<CR> is <S2><S2><S2>AT<S3>.
<gt>
Description
0
No guard time. Default value
1-10
Guard time in seconds
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13. Network
13.1 AT*E2CD
Ericsson M2M Cell Description
Description
Command
Possible Responses
Request network cell
description
AT*E2CD=<n>
• ERROR
• OK
Show the current
setting
AT*E2CD?
• *E2CD:
<n>,<lac>,<ci>,<ta>
• ERROR
Show if the command
is supported
AT*E2CD=?
• *E2CD: (list of
supported <n>s)
• ERROR
Controls the presentation of an unsolicited result code E2CD: when
<n>=1, or when there is a change in one of the network cell parameters,
E2CD: <lac>,<ci>,<ta>.
Read command returns the status of result code presentation and several
values, which show the network cell parameters.
Location information <lac>, <ci> and <ta> are returned only when
<n>=1 and the ME is registered in the network. To know if the ME is
registered use the AT+CREG command. If the ME is not registered in
the cellular network an ERROR message is returned.
<n>
Description
0
Disable network location information unsolicited result
code. Default value
1
Enable network location information unsolicited result
code *E2CD: <lac>,<ci>,<ta>
<lac>
Description
String type
Two byte location area code in hexadecimal format
<ci>
Description
string type
Two byte cell ID in hexadecimal format
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<ta>
Description
0-63
According to GSM 04.18 V8.6.0, the coding of the timing
advance value is the binary representation of the timing
advance in bit periods; 1 bit period = 48/13 ìs. <ta> is the
integer representation of the timing advance in binary
format
64-255
Reserved
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13.2 AT*E2EMM Ericsson M2M Engineering Monitoring Mode
Description
Command
Possible Responses
Set the
AT*E2EMM= • ERROR
response
presentation
mode
<n>[,<m>]
• OK
Display mode
neighbour cells
are taken from
the toplist
*E2EMM:
Serving Cell
MCC,MNC,LAC,CellID,BSIC,Ch[,RxL,C1,
C2][,RxLFull,RxLSub,RxQFull,RxQSub,TA,T
N],
<mcc>,<mnc>,<lac>,<ci>,<bsic>,<ch>
[,<rxl>,<c1>,<c2>][,<rxlFull>,<rxlSub>,
<rxqfull>,<rxqsub>,<ta>,<tn>],
NeighBours Cells
MCC,MNC,LAC,CellID,BSIC,Ch,RxL[,C1,
C2],
<mcc>,<mnc>,<lac>,<ci>,<bsic>,<ch>,
<rxl>[,<c1>,<c2>]
<mcc>,<mnc>,<lac>,<ci>,<bsic>,<ch>,
<rxl>[,<c1>,<c2>]
…
<mcc>,<mnc>,<lac>,<ci>,<bsic>,<ch>,
<rxl>[,<c1>,<c2>]
OK
Compact mode.
The first cell is the
serving cell, the
rest are
neighbour cells
taken from the
toplist
*E2EMM: <mcc>,<mnc>,<ci>,
<bsic>,<ch>[,<rxl>][,<rxlSub>,<rxqsub>,
<ta>],<mcc>,<mnc>,<ci>,<bsic>,<ch>,
<rxl>,
<mcc>,<mnc>,<ci>,<bsic>,<ch>,<rxl>,
…
<mcc>,<mnc>,<ci>,<bsic>,<ch>,<rxl>
OK
Verbose mode.
The first cell is the
serving cell and
the rest are
*E2EMM: <mcc>,<mnc>,<lac>,
<ci>,<bsic>,<ch>[,<rxl>,<c1>,<c2>]
[,<rxlFull>,<rxlSub>,<rxqfull>,<rxqsub>,
<ta>,<tn>],
neighbour cells
as provided by
the network in
the system info.
messages (2 and
5) and via the
AT*E2NBTS
<mcc>,<mnc>,<lac>,<ci>,<bsic>,<ch>,
<rxl>[,<c1>,<c2>]
<mcc>,<mnc>,<lac>,<ci>,<bsic>,<ch>,
<rxl>[,<c1>,<c2>]
…
<mcc>,<mnc>,<lac>,<ci>,<bsic>,<ch>,
<rxl>[,<c1>,<c2>]
command
OK
Reduced display
mode - info. as
display mode but
without text
*E2EMM: <mcc>,<mnc>,<lac>,
<ci>,<bsic>,<ch>[,<rxl>,<c1>,<c2>]
[,<rxlFull>,<rxlSub>,<rxqfull>,<rxqsub>,
<ta>,<tn>],
headings or
<mcc>,<mnc>,<lac>,<ci>,<bsic>,<ch>,
<rxl>[,<c1>,<c2>]
<CR><LF>
separators,
<mcc>,<mnc>,<lac>,<ci>,<bsic>,<ch>,
<rxl>[,<c1>,<c2>]
neighbour cells
from top list
…
<mcc>,<mnc>,<lac>,<ci>,<bsic>,<ch>,
<rxl>[,<c1>,<c2>]
OK
Show the current
setting
AT*E2EMM? • *E2EMM: <n>
• ERROR
Show if the
command is
supported
AT*E2EMM= • *E2EMM: (list of supported <n>s),(list
?
of supported <m>s)
• ERROR
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There are four presentation format modes (Display, Compact, Verbose,
and Reduced Display) and two response types (one shot response or
continuous unsolicited responses).
The purpose of the presentation format mode Display is to display the
data in a readable form, including headers and line breaks
(<CR><LF>). This format is, however, not well suited for machine
decoding. The formats Verbose, Compact and Reduced Display do not
have headers or line breaks. Verbose mode displays more parameters
than the compact mode.
The response types give the user the choice of one a shot information or
an unsolicited response with <m> seconds between each response.
Examples
AT*E2EMM=1
*E2EMM:
Serving Cell
MCC,MNC,LAC,CellId,BSIC,Ch,RxL,C1,C2
234,15,0016,0D91,2E,0081,-085,00019,00019
Neighbour Cells
MCC,MNC,LAC,CellId,BSIC,Ch,RxL,C1,C2
000,00,0016,4047,3A,0083,-103,00001,00001
000,00,0016,423C,3A,0065,-104,00000,00000
000,00,0016,2F21,21,0067,-104,00000,00000
000,00,0016,8E3D,34,0077,-104,00000,00000
000,00,0016,348A,10,0091,-104,00000,00000
OK
AT*E2EMM=3
*E2EMM: <servcell mcc>,<servcell mnc>,<servcell ci>,
<servcell bsic>,<servcell ch>[,<servcell rxl>][,<servcell rxlSub>,
<servcell rxqsub>,<servcell ta>],<neighborcell1 mcc>,
<neighborcell1 mnc>,<neighborcell1 ci>,<neighborcell1 bsic>,
<neighborcell1 ch>,<neighborcell1 rxl>,<neighborcell2 mcc>,
<neighborcell2 mnc>,<neighborcell2 ci>,<neighborcell2 bsic>,
<neighborcell2 ch>,<neighborcell2 rxl>,
…
<neighborcelln mcc>,<neighborcellnmnc>,<neighborcellnci>,
<neighborcelln bsic>,<neighborcelln ch>,<neighborcelln rxl>
<CR><LF>
OK
AT*E2EMM=5
*E2EMM: <servcell mcc>,<servcell mnc>,<servcell lac>,
<servcell ci>,<servcell bsic>,<servcell ch>[,<servcell rxl>,
<servcell C1>,<servcell C2>][,<servcell rxlFull>,<servcell rxlSub>,
<servcell rxqfull>,<servcell rxqsub>,<servcell tn>,<servcell ta>],
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<neighborcell1 mcc>,<neighborcell1 mnc>,<neighborcell1 lac>,
<neighborcell1 ci>,<neighborcell1 bsic>,<neighborcell1 ch>,
<neighborcell1 rxl>[,<neighborcell1 C1>,<neighborcell1 C2>],
<neighborcell2 mcc>,<neighborcell2 mnc>,<neighborcell2 lac>,
<neighborcell2 ci>,<neighborcell2 bsic>,<neighborcell2 ch>,
<neighborcell2 rxl>[,<neighborcell2 C1>,<neighborcell2 C2>],
…
<neighborcelln mcc>,<neighborcellnmnc>,<neighborcelln lac>,
<neighborcelln ci>,<neighborcelln bsic>,<neighborcelln ch>,
<neighborcelln rxl>[,<neighborcelln C1>,<neighborcelln C2>]
<CR><LF>
OK
AT*E2EMM=7
*E2EMM:<servcell mcc>,<servcell mnc>,<servcell lac>,
<servcell ci>,<servcell bsic>,<servcell ch>[,<servcell rxl>,
<servcell c1>,<servcell c2>][,<servcell rxlFull>,<servcell rxlSub>,
<servcell rxqfull>,<servcell rxqsub>,<servcell ta>,<servcell tn>],
<neighborcell1 mcc>,< neighborcell1 mnc>,<neighborcell1 lac>,
<neighborcell1 ci>,<neighborcell1 bsic>,<neighborcell1 ch>,
<neighborcell1 rxl>[,< neighborcell1 c1>,<neighborcell1 c2>],
<neighborcell2 mcc>,<neighborcell2 mnc>,<neighborcell2 lac>,
<neighborcell2 ci>,<neighborcell2 bsic>,<neighborcell2 ch>,
<neighborcell2 rxl>[,<neighborcell2 c1>,<neighborcell2c2>]
…
<neighborcelln mcc>,<neighborcelln mnc>,<neighborcelln lac>,
<neighborcelln ci>,<neighborcelln bsic>,<neighborcelln ch>,
<neighborcelln rxl>[,<neighborcelln c1>,<neighborcelln c2>]
OK
The mode setting <n> in the set command has the combination listed in
the table below.
When <n>=5, the shot information is the same as in <n>=1, but
neighbouring cells, which have to be up to 16. This is the information
that comes from the Serving Cell through the BCCH, reporting the BTS
that are on the Serving Cell's surroundings.
<n>
Description
0
Disable network monitoring unsolicited result code.
Default value
1
2
3
One shot presentation of the network location
information. Display mode with headers and <CR><LF>
line separators
Enable network location information unsolicited result
code in Display mode (like n=1). There will be continuous
unsolicited information responses <m> seconds apart
One shot presentation of the compact network location
information
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<n>
Description
4
Enable compact network location information unsolicited
result code. There will be continuous unsolicited
information responses <m> seconds apart
5
One shot presentation of the network location information
(verbose format), including 16 BTSs, coming from the
Serving Cell signalling information
6
7
As n=5 format but there will be continuous unsolicited
information responses <m> seconds apart
One shot presentation of the network information (same
information as in n=1) but no headers or <CR><LF> line
separators. Neighbor cells from the Toplist
8
As n=7 format but there will be continuous unsolicited
information responses <m> seconds apart
<m>
Description
1-255
Integer type giving time (in seconds) between unsolicited
responses. Default value is 5
<mcc>
Description
Integer type
Three digits in decimal format. The Mobile Country Code
identifies the PLMN serving cell country according to ITU
<mnc>
Description
Integer type
Two digits in decimal format. The Mobile Network Code
identifies the PLMN operator in the serving cell
<lac>
Description
Integer type
Two byte location area code in hexadecimal format
<ci>
Description
Integer type
Two byte cell ID in hexadecimal format
<bsic>
Description
Integer type
One byte Base Stations Identification code in
hexadecimal format
<ch>
Description
(0-1023)
It represents the ARFCN that shows the Absolute RF
Channel, which identifies the BCCH carrier
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<rxl>
Description
Integer type
Received Signal Strength level in dBm measured on idle
mode
<rxlfull>
Description
Integer type
Received Signal Strength level in dBm. The Rx Level is
taken in the Downlink and statistically is applied to 100
TDMA frames of the TCH or during a SACCH multiframe
<rxlsub>
Description
Integer type
Received Signal Strength level in dBm. The Rx Level is
taken from the DownLink signal and the average is
applied to subset of SACCH frames
<rxqfull>
Description
0
1
2
3
4
5
6
7
BER < 0.1%
0.26% < BER < 0.30%
0.51% < BER < 0.64%
1.0% < BER < 1.3%
1.9% < BER < 2.7%
3.8% < BER < 5.4%
7.6% < BER < 11.0%
BER > 15.0%
<mcc>
Description
Integer type
Three digits in decimal format. The Mobile Country Code
identifies the PLMN serving cell country according to ITU
<rxqsub> is the parameter that indicates the quality in the received
signal on dedicated mode. The measurement average is applied to a
subset of a SACCH multiframe.
<rxqsub>
Description
0
1
2
3
BER < 0.1%
0.26% < BER < 0.30%
0.51% < BER < 0.64%
1.0% < BER < 1.3%
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<rxqsub>
Description
4
5
6
7
1.9% < BER < 2.7%
3.8% < BER < 5.4%
7.6% < BER < 11.0%
BER > 15.0%
<c1>
Description
Integer
Path Loss criterion parameter for neighbour cells. The MS
calculates this parameter, in idle mode, to decide if the
cell is suitable to camp on. After the calculation the
criterion is C1 > 0. See GSM 05.08
<c2>
Description
Integer
Cell reselection parameter for neighbour cells. This
parameter shall optimise the selected cell reselection
<ta>
Description
0-63
According to GSM 04.18 V8.6.0, the coding of the timing
advance value is the binary representation of the timing
advance in bit periods; 1 bit period = 48/13 ìs. <ta> is the
integer representation of the timing advance in binary
format
64-255
Reserved
<tn>
Description
0-7
Its value indicates the time slot number in a traffic channel
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13.3 AT*E2SPN M2M Service Provider Indication
Description
Command
Possible Responses
Request service
provider indication
AT*E2SPN
• *E2SPN: <spi>
• +CME ERROR: <err>
Show if the command
is supported
AT*E2SPN=?
• OK
• ERROR
Causes the MS to return the service provider name stored in the SIM
card (<spi> parameter). The text will consist of a maximum of 16 bytes
containing the service provider name stored in the EF
file in the SIM
SPN
card (see GSM 11.11). ERROR is returned if the field is not present on
the SIM.
<spi>
Description
String
String type field of maximum length 16 bytes; character
set as specified by command Select TE character set
+CSCS
13.4 AT*EALS
Ericsson Request ALS Status
Description
Command
Possible Responses
Requests current status
for ALS
AT*EALS
• *EALS: <status>
• +CME ERROR: <err>
• OK
• ERROR
Show if the command
is supported
AT*EALS=?
• +CME ERROR: <err>
• OK
• ERROR
Used to request the MS to give ALS (Alternate Line Services) status.
The information is available on the SIM card. If ALS is active, the user
has two lines for voice calls. The line number or name tag for the line is
then indicated on the display.
<status>
Description
0
1
ALS function is not active (off)
ALS function is active (on)
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13.5 AT*ECSP
Ericsson Customer Service Profile
Description
Command
Possible Responses
Read the customer
service profile from the
SIM
AT*ECSP=<service
group>
• *ECSP: <service
group>,<services>
• +CME ERROR: <err>
• OK
• ERROR
Show if the command
is supported
AT*ECSP=?
• +CME ERROR: <err>
• OK
• ERROR
This command is used to read the customer service profile (CSP) from
the SIM. CSP is a list on the SIM, which indicates the services that are
user accessible. Each of the services has a related bit within the CSP.
The services are grouped into service groups, with a maximum of 8
services in a group. For each service group, a bit mask tells which
services are available (bit=1). Unused bits are set to 0.
<service
group>
Description
Byte
Each service group has a corresponding number, service
group code
<services>
Description
byte
Bit mask (8 bits), indicating the services within the service
group
Bit=0: unused or unavailable service
Bit=1: available service
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13.6 AT*EPNR
Ericsson Read SIM Preferred Network
Description
Command
Possible Responses
Read entries in SIM
preferred list
AT*EPNR=<format>
[,<index1>
[,<index2]]
• *EPNR:
<index1>,<oper1>[...]
*EPNR: <index2>,
<oper2>
• +CME ERROR: <err>
• OK
• ERROR
Show if the command is
supported
AT*EPNR=?
• *EPNR: (list of
supported <index>s),
(list of supported
<format>s)
• +CME ERROR: <err>
• OK
• ERROR
This command is used to read the SIM preferred list of networks
(EF ).
PLMNSEL
<index1>
Description
integer
Start index (>0)
<index2>
Description
integer
Stop index (>0)
<format>
Description
2
Numeric <oper>
<oper>
Description
string
String indicates the code for the operator.
E.g. GSM - Sweden - Europolitan: “24008” (3 + 2).
PCS: 3 digits for country and 3 digits for network
Example
AT*EPNR=2,1,10
*EPNR: 1,“24008”
*EPNR: 2,“20404”
*EPNR: 3,“20810”
*EPNR: 4,“20205”
*EPNR: 5,“65501”
*EPNR: 6,“26203”
*EPNR: 7,“50503”
*EPNR: 8,“27201”
*EPNR: 9,“64101”
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*EPNR: 10,“27801”
OK
13.7 AT*EPNW Ericsson Write SIM Preferred Network
Description
Command
Possible Responses
Write/delete entries in
SIM preferred list
AT*EPNW=[<index>]
[,<format>,<oper>]
• +CME ERROR: <err>
• OK
• ERROR
Show if the command
is supported
AT*EPNW=?
• *EPNW: (list of
supported
<index>s), (list of
supported
<format>)s
• +CME ERROR: <err>
• OK
• ERROR
This command is used to edit the SIM preferred list of networks
(EF ). The entry field <oper> contains mobile country code
PLMNSEL
(MCC) and mobile network code (MNC).
<index>
Description
Integer
Index to entry in SIM preferred list.
The SIM preferred list contains at least 8 positions
according to GSM 11.11
<format>
Description
2
Numeric <oper>
<oper>
Description
String
String indicates the code for the operator.
E.g. GSM – Sweden - Europolitan: “24008” (3 + 2).
PCS: 3 digits for country and 3 digits for network
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13.8 AT*E2SSN Ericsson M2M SIM Serial Number
Description
Command
Possible Responses
Request SIM Serial
number
AT*E2SSN?
<SSN>
Shows if the command
is supported
AT*E2SSN=?
• OK
• ERROR
This command requests the SIM serial number held in the ICCid field
(address 2FE2) on the SIM and returns all valid characters to the TE.
This field is detailed in GSM 11.11 section 10.1.1.
<SSN>
Description
String without
double quotes
SIM serial number
EXAMPLES
AT*E2SSN?
8944110063503224707
OK
where the raw data contained in the ICCid field on the SIM is
984411003605234207F7.
Test command:
AT*E2SSN=?
OK
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13.9 AT*ESLN
Ericsson Set Line Name
Description
Command
Possible Responses
Sets the line name tag
in the MS
AT*ESLN=<line>
[,<name>]
• +CME ERROR: <err>
• OK
• ERROR
Show the current
setting
AT*ESLN?
• *ESLN:
<line1>,<name1><CR><LF>
*ESLN: <line2>,<name2>
• +CME ERROR: <err>
• OK
• ERROR
Show if the command
is supported
AT*ESLN=?
• *ESLN: (list of supported
<line>s),<lname>
• +CME ERROR: <err>
• OK
• ERROR
Sets the name tag for a selected line.
<line>
Description
0
This means that the two lines will use the default name
tags, i.e. “L1” and “L2”. Default value
1
2
Line 1
Line 2
<name>
Description
String
Characters for name tag
This parameter is optional when <line> is set to 0
<lname>
Description
Integer
Maximum number of characters to use in <name> string
(20)
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13.10 AT+CIMI Subscriber Identification
Description
Command
Possible Responses
Read IMSI
AT+CIMI
• <IMSI>
• +CME ERROR <err>
• OK
• ERROR
Show if the command
is supported
AT+CIMI=?
• OK
• ERROR
Causes the TA to return <IMSI>, identifying the individual SIM
attached to the ME.
<IMSI>
Description
string without
double quotes
International Mobile Subscriber Identity
Example
AT+CIMI
234157411545420
OK
13.11 AT+CLCK Facility Lock
Description
Command
Possible Responses
Request facility lock
AT+CLCK=<fac>,
<mode>[,<passwd>
[,<class>]]
• when <mode>=2 and
command successful:
+CLCK:
<status>[,<class1>
[<CR><LF>+CLCK:
<status>,<class2>[...]]
• +CME ERROR <err>
• OK
• ERROR
Show if the
command is
supported
AT+CLCK=?
• +CLCK: (list of
supported <fac>s)
• +CME ERROR <err>
• OK
The command is used to lock, unlock or interrogate an ME or a network
facility <fac>. A password is normally needed to carry out such actions.
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Call barring facilities are based on GSM supplementary services (refer
to GSM 02.88). The interaction of these, with other commands based on
other GSM supplementary services, is described in the GSM standard.
<fac>
Description
“PS”
PH-SIM (lock PHone to SIM card) (ME asks password when
other than current SIM card inserted)
“SC”
SIM (lock SIM card) (SIM asks password in ME power-up
and when this lock command issued)
“FD”
“P2”
“AO”
“OI”
“AI”
“IR”
SIM fixed dialling feature. PIN2 is required as a password
SIM PIN2
BAOC (bar all outgoing calls)
BOIC (bar outgoing international calls)
BAIC (bar all incoming calls)
BIC-Roam (bar incoming calls when roaming outside the
home country)
“OX”
BOIC-exHC (bar outgoing international calls except to
home country)
“AB”
“AG”
“AC”
“PN”
“PU”
“PP”
“PC”
All barring services
All out going barring services
All in coming barring services
Network personalization
Network subset personalization
Service provider personalization
Corporate personalization
<mode>
Description
0
Unlock
1
Lock
2
Query status
10
Full lock (only valid for <fac>=“PS”, after power on always
ask for password)
<status>
Description
0
1
Not active
Active
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<passw>
Description
string type
Is the same as password specified for the facility from the
ME user interface or with change password command,
+CPWD
<classx>
Description
1
Voice L1
2
Data
4
Fax
8
Short message service
Data circuit sync
Data circuit async
Dedicated packet access
Voice L2
16
32
64
128
1..30
When “no reply” is enabled or queried, this gives the time
in seconds to wait before the call is forwarded. Default
value is 20
13.12 AT+CNUM Subscriber Number
Description
Command
Possible Responses
Request subscriber
number
AT+CNUM
• +CNUM:
[<alpha1>],<number1>,<type1>
[,<speed>,<service>[,<itc>]][<CR>
<LF>+CNUM:
[<alpha2>],<number2>,<type2>
[,<speed>,<service> [,<itc>]][…]]
• +CME ERROR: <err>
• OK
• ERROR
Show if the
command is
supported
AT+CNUM=?
• +CME ERROR: <err>
• OK
• ERROR
This command returns the MSISDNs related to the subscriber (this
information can be stored in the SIM or in the ME). If subscriber has
different MSISDN for different services, each MSISDN is returned in a
separate line.
<alphax>
Description
Alphanumeric
string
Associated with <numberx>; used character set should be
the one selected with the Select TE character set
command, +CSCS
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<numberx>
Description
String type
Phone number of format specified by <typex>
<typex>
Description
Integer format Type of address, (refer to GSM 04.08 subclause 10.5.4.7)
<speed>
Description
data rate
As defined in subclause 6.7 GSM 07.07
<service>
Description
0
4
5
Asynchronous modem
Voice
Fax
<itc>
Description
0
1
3.1kHz
UDI
13.13 AT+COLP Connected Line Identification Presentation
Description
Command
Possible Responses
Request connected
line identification
presentation
AT+COLP=[<n>]
• OK
• ERROR
Show the current
setting
AT+COLP?
• +COLP: <n>,<m>
• OK
• ERROR
Show if the command
is supported
AT+COLP=?
• +COLP: (list of
supported <n>s)
• OK
• ERROR
This command refers to the GSM/UMTS supplementary service COLP
(Connected Line Identification Presentation) that enables a calling
subscriber to get the connected line identity (COL) of the called party
after setting up a mobile originated call. The command enables or
disables the presentation of the COL at the TE. It has no effect on the
execution of the supplementary service COLR in the network.
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When enabled (and allowed by the called subscriber), +COLP:
<number>,<type>[,<subaddr>,<satype> [,<alpha>]] intermediate
result code is returned from the TA to the TE before any +CR or V.25ter
responses. It is manufacturer specific if this response is used when
normal voice call is established.
Read command gives the status of <n>, and also triggers an
interrogation of the provision status of the COLP service according
3GPP TS 22.081 (given in <m>).
Test command returns values supported by the TA as a compound
value.
<n>
Description
0
1
Disable
Enable
<m>
Description
0
1
2
COLP not provisioned
COLP provisioned
unknown (e.g. no network, etc.)
Intermediate Result codes:
+COLP: <number>,<type>[,<subaddr>,<satype> [,<alpha>]]
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13.14 AT+COPS Operator Selection
Description
Command
Possible Responses
Request operator
selection
AT+COPS=[<mode> • +CME ERROR <err>
[,<format>
[,<oper>]]]
• OK
• ERROR
Show the current
setting
AT+COPS?
• +COPS:
<mode>[,<format>,
<oper>]
• +CME ERROR <err>
• OK
• ERROR
Show if the command
is supported
AT+COPS=?
• +COPS: list of supported
(<stat>,long
alphanumeric <oper>,
short alphanumeric
<oper>,numeric
<oper>)s
• +CME ERROR <err>
• OK
• ERROR
Forces an attempt to select and register the GSM network operator.
<mode>
Description
0
1
3
Automatic (<oper> field is ignored)
Manual (<oper> field present)
Set only <format> (for read command +COPS?), do not
attempt registration/de-registration (<oper> field is
ignored); this value is not applicable in read command
response
4
Manual/automatic (<oper> field present); if manual
selection fails, automatic mode (<mode>=0) is entered
<format>
Description
0
2
Automatic (<oper> field is ignored)
Numeric <oper>
<oper>
Description
string type
Format determined by the <format> setting
<stat>
Description
0
1
2
3
Unknown
Available
Current
Forbidden
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Example
AT+COPS=?
+COPS: (2,“UK VODAFONE”,“UK Vodafone”,“23415”)
+COPS: (3,“UK Orange PCS Ltd”,“Orange”,“23433”)
+COPS: (3,“T-Mobile UK”,“T-Mobile UK”,“23430”)
+COPS: (3,“O2 - UK”,“O2 - UK”,“23410”)
OK
13.15 AT+CREG Network Registration
Description
Command
Possible Responses
Request network
registration
AT+CREG=[<n>]
AT+CREG?
• +CME ERROR <err>
• OK
• ERROR
Show the current
setting
• +CREG: <n>,<stat>
• +CME ERROR <err>
• OK
• ERROR
Show if the command
is supported
AT+CREG=?
• +CREG: (list of
supported <n>s)
• +CME ERROR <err>
• OK
• ERROR
Set command controls the presentation of an unsolicited result code
+CREG: <stat> when <n>=1 and there is a change in the ME network
registration status.
Read command returns the status of result code presentation and an
integer <stat>, which shows whether the network has currently
indicated the registration of the ME.
Controls the presentation of the unsolicited result code +CREG.
<n>
Description
0
Disable network registration unsolicited result code.
Default value
1
Enable network registration unsolicited result code
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<stat>
Description
0
Not registered, ME is not currently searching for a new
operator to register with
1
2
Registered, home network
Not registered, but ME is currently searching for a new
operator to register with
3
4
5
Registration denied
Not detailed
Registered, roaming
Example
AT+CREG?
+CREG: 0,1
OK
13.16 AT*ECPI
Ciphering Indicator
Description
Command
Possible Responses
Request activation of
the ciphering
AT*ECPI=<switch>
AT*ECPI?
• OK
• +CME: <error>
• ERROR
indication
Shows the current
setting
• *ECPI: <switch>
• OK
• ERROR
Show if the command
is supported
AT*ECPI=?
• *ECPI: (list of supported
<switch>es values)
• OK
• ERROR
This command allows the external application to activate/deactivate the
ciphering indication. The ciphering indication allows the external
application to detect when the mobile connection becomes deciphered
and thus unsecured.
Test command gives the current value of the <switch> parameter,
informing if the indicator is enabled or disabled.
The ciphering indicator feature may be disabled by the home network
operator setting data in the “administrative data” field (EFAD) in the
SIM as defined in GSM 11.11.
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If this feature is not disabled by the SIM, then whenever a connection is
in place, which is or becomes deciphered, an indication is given via the
unsolicited result code *ECPV:<ciphering>.
<switch>
Description
1
Ciphering indication is on. The unsolicited result code
*ECPV is sent anytime the communication is unsecured
and when it becomes secure again
0
Ciphering indication is off. Disable the ciphering
indication, *ECPV is not sent
Unsolicited Result Codes:
*ECPV: <ciphering>. Sent only when <switch> is set to 0.
Unsolicited Result Codes
*ECPV - Ciphering Indicator
SYNTAX - Unsolicited Result code
Description
Response
When
Set command informs
the TE when a
communication is
unsecured due to the
fact that the network
is not enciphering the
communication
*ECPV: <ciphering>
When AT*ECPI enables it,
the *ECPV:<ciphering> is
sent during a connection
whenever the
communication is not
enciphered. If a
connection becomes
secure after that, the
*ECPV:<ciphering> is sent
again to indicate that now
the communication is
enciphered
<ciphering>
Description
0
The connection is secured. The network enciphers the
communication
1
The connection is unsecured. The network does not
encipher the communication
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13.17 AT*E2NBTS Ericsson M2M Neighbour BTS
Description
Command
Possible Responses
Set Neighbour
AT*E2NBTS=<ch1>,<bsic1>[,<ch2
• ERROR
• OK
Cells to monitor >,<bsic2>[,<ch3>,<bsic3>[,<ch4
>,<bsic4>[,<ch5>,<bsic5>[,<ch6
>,<bsic6>[,<ch7>,<bsic7>[,<ch8
>,<bsic8>[,<ch9>,<bsic9>[,<ch1
0>,<bsic10>[,<ch11>,<bsic11>[,<
ch12>,<bsic12>[,<ch13>,<bsic13
>[,<ch14>,<bsic14>[,<ch15>,<bsi
c15>[,<ch16>,<bsic16>]]]]]]]]]]]]]
]]
Show the
current setting
AT*E2NBTS?
• *E2NBTS:
<mcc>,<mnc>,
<ci>,<bsic>,<ch>,
<rxl><CR><LF>
<mcc>,<mnc>,
<ci>,<bsic>,<ch>,
<rxl><CR><LF>
…
<mcc>,<mnc>,
<ci>,<bsic>,<ch>,
<rxl><CR><LF>
<CR><LF>
• OK
• ERROR
Show if the
command is
supported
AT*E2NBTS=?
• *E2NBTS: (list of
supported <ch>s)
• ERROR
The set command shall provide with the ARFCNs (<ch>) and the BSIC
(the BSIC is a cell colour code) to the MS in order to monitor those
channels, belonging to the neighbour cells, instead of the ones that come
through the air interface, in the serving cell information broadcast
channel.
It is possible to update that information with up to 16 neighbour cells.
If less than 16 <ch>s are provided, then the assigned channels shall
substitute the last previous channel (given either by the BCCH or by
another AT*E2NBTS command), if it is not in the list yet. Therefore,
<ch1>,<bsic1> will substitute BTS 16 in the MS, <ch2>,<bsic2> to the
BTS 15 and so on. If any of the <ch>s is already in the top-list, then it
is skipped.
The read command displays the data of every neighbour cell, including
the following parameters: MCC, MNC, Cell ID, BSIC, Channel and Rx
Level.
<ch>
Description
(0-1023)
It represents the ARFCN that shows the Absolute RF
Channel, which identifies a BCCH carrier
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<mcc>
Description
String Type
Three digits in decimal format. The Mobile Country Code
identifies the PLMN serving cell country according to ITU
<mnc>
Description
String Type
Two digits in decimal format. The Mobile Network Code
identifies the PLMN operator in the serving cell
<ci>
Description
String type
Two byte cell ID in hexadecimal format
<bsic>
Description
String Type
One byte Base Stations Identification code in
hexadecimal format
<rxl>
Description
String Type
Received Signal Strength level in dBm, measured in idle
mode
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14. Phonebook
14.1 AT*E2PBCS Ericsson M2M Phonebook Check Sum
Description
Command
Possible Responses
Request phone book
checksum
AT*E2PBCS
• *E2PBCS: <cks>
• +CME ERROR: <err>
Show if the command
is supported
AT*E2PBCS=?
• OK
• ERROR
Command causes the ME to return the phone book checksum <cks>
stored internally . Phone book checksum is recalculated whenever there
is a change in the phone book. By requesting the checksum, the external
application can detect if the phone book in the ME has changed, without
downloading the whole phone book.
During the SIM initialisation process, it takes some time to download
the phone book from the SIM card to the ME, depending on the number
of entries. In case the command is invoked before the checksum has
been calculated, the ME gives an ERROR message.
<cks>
Description
Hex type
1 byte in hexadecimal (between “”), containing the
checksum
14.2 AT*ESAG
Ericsson Add to Group
Description
Command
Possible Responses
Adds a new item to the
group with <gindex>
AT*ESAG=<gindex>,
<type>,
<itemindex>
• +CME ERROR: <err>
• OK
• ERROR
Show if the command
is supported
AT*ESAG=?
• *ESAG: (list of
supported
<gindex>s, list of
supported <type>s
• OK
• ERROR
This command adds a contact or a phone number to the current group.
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<gindex>
Description
1-10
The group index within the hierarchical phone book
<type>
Description
1
2
Contact
Phone number
<itemindex>
Description
Integer
The index of the contact/group/phone number to add.
The <itemindex> parameter has the following meaning: if
the item to add is a contact, the <itemindex> is the index
of the contact in the contacts book. If the item to add is a
phone number the <itemindex> is the index in the phone
book
14.3 AT*ESCG
Ericsson Create Group
Description
Command
Possible Responses
Adds a new group to
the hierarchical phone
book
AT*ESCG=<name>
AT*ESCG=?
• +CME ERROR: <err>
• OK
• ERROR
Shows if the command
is supported
• *ESCG:
<maxnamelength>
• +CME ERROR: <err>
• OK
• ERROR
This command creates a new group in the hierarchical phone book. The
group is stored at the first available position. There are 10 group
positions in the hierarchical phone book.
<name>
Description
String
The group name. Character set as specified by
command Select TE Character Set (AT+CSCS)
<maxnamelength>
Description
integer
The maximum length of the grouping (bytes)
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14. PHONEBOOK
14.4 AT*ESCN
Ericsson Set Credit Card Number
Description
Command
Possible Responses
Set up a credit
card number
AT*ESCN=<mode>
[,<passwd>][,<indexn>]
[,<asn>,<type>,<name>,
<vercode>[,<send
order>]]
• +CME ERROR: <err>
when mode=3:*ESCN:
<indexn>,<asn>,<type>,
<name>,<vercode>,
<send order>
When mode=4:*ESCN:
<selindexn>
• OK
• ERROR
Show if the
command is
supported
AT*ESCN=?
• *ESCN: (list of supported
<index>s),(list of
supported <mode>s),(list
of supported <send
order>s)
• +CME ERROR: <err>
• OK
• ERROR
Command is used to:
• set up a credit card number in the ME.
• disable credit card calls.
• enable one of the credit card call services.
• query the settings for one of the services.
• query the active credit call access server.
<mode>
Description
0
Settings for a credit card call (<passwd>, <indexn>,
<asn>,<type>,<name>,<vercode> [,<send order>]). The
four (4) parameters (<passwd>, <indexn>, <asn>,
<vercode>) are mandatory when <mode>=0. If all those
are not submitted ERROR will be returned
1
2
Disable credit card calling (<passwd>). If any other
parameters are submitted, they are ignored
Enable one of the credit card call services (<passwd>,
<indexn>). If any other parameters are submitted, they
are ignored
3
4
Query (<passwd>, <indexn>). If any other parameters are
submitted, they are ignored
Query for the selected credit call access server. If any
parameters are submitted, they are ignored
<passwd>
Description
String
character string, phone lock code “PS”, PH-SIM
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<indexn>
Description
1
2
Index number to the first credit card call access server
Index number to the second credit card call access server
<selindexn>
Description
0
1
2
Credit card calling disabled
Index number to the first credit card call access server
Index number to the second credit card call access server
<asn>
Description
String
Character string <0..9,+>, max. 20 characters Phone
number of format specified by <typex>
<type>
Description
Integer format Type of address
<name>
Description
String
Character string of the name tag, for M&M. Maximum of
18 characters
<vercode>
Description
String
Character string <0..9,#,*>. Maximum of 20 characters
<send order>
Description
1
2
Verification code first. Default value
phone number to call first
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14. PHONEBOOK
14.5 AT*ESDG
Ericsson Delete Group
Description
Command
Possible Responses
Deletes a group
defined in the
hierarchical phone
book
AT*ESDG=<gindex>
AT*ESDG=?
• +CME ERROR: <err>
• OK
Show if the command
is supported
• *ESDG: list of
<gindex>s
• OK
This command deletes the group at position <gindex> from the
hierarchical phone book.
<gindex>
Description
1-10
The group index
14.6 AT*ESDI
Ericsson Delete Group Item
Description
Command
Possible Responses
Deletes the item in
group <gindex> with
position <index>
AT*ESDI=<gindex>,<ind
ex>
• +CME ERROR: <err>
• OK
• ERROR
Show if the command
is supported
AT*ESDI=?
• +CME ERROR: <err>
• OK
• ERROR
The command deletes the item with <index> in the group with
<gindex>.
<gindex>
Description
1-10
The groups index within the hierarchical phone book
<index>
Description
1-15
The items index within the group
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14.7 AT*ESGR
Ericsson Group Read
Description
Command
Possible Responses
Lists the groups defined
in the hierarchical
phone book
AT*ESGR
• *ESGR: <gindex1>,
<name1>[<CR><LF>
<gindex2>,
<name2>..]
• OK
• ERROR
Shows if the command
is supported
AT*ESGR=?
OK
This command lists the groups in the hierarchical phone book.
<gindex>
Description
1-10
The group index
<name>
Description
String
The group name
14.8 AT*EGIR
Ericsson Group Item Read
Description
Command
Possible Responses
Lists the items in the
<gindex> group
AT*EGIR=<gindex>
• *EGIR: <index1>,
<type1>,<itemindex>
[<CF><LF><index2>,
<type2>, <itemindex>
[...]]
• OK
• ERROR
Show if the command
is supported
AT*EGIR=?
• OK
• ERROR
This command lists the items stored in the group identified by
<gindex>.
<gindex>
Description
1-10
The groups index within the hierarchical phonebook
<index>
Description
1-15
The items index within the group
<type>
Description
Integer
The kind of item. See AT*ESAG <item> table for definition
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<itemindex>
Description
Integer
The item's index within the phonebook/contacts/group
14.9 AT*ESIL
Ericsson Silence Command
Description
Command
Possible Responses
Sets the MS to silent
mode
AT*ESIL=[<mode>]
• +CME ERROR: <err>
• OK
• ERROR
Show the current
setting
AT*ESIL?
• *ESIL: <mode>
• +CME ERROR: <err>
• OK
• ERROR
Show if the command
is supported
AT*ESIL=?
• *ESIL: (list of
supported
<mode>s)
• +CME ERROR: <err>
• OK
• ERROR
This command orders the phone to be in silent mode. When the phone
is in silent mode, all sounds from the MS are prevented.
<mode>
Description
0
1
Silent mode off. Default value
Silent mode on
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14.10 AT*ESNU Ericsson Settings Number
Description
Command
Possible Responses
Sets a number in the
MS
AT*ESNU=<type>,
<number>[,<number
type>]
• +CME ERROR: <err>
• OK
• ERROR
Show the current
setting
AT*ESNU?
• *ESNU: <type 1>,
<number 1>,
<number type 1>
<CR><LF> ….*ESNU:
<type n>,
<number n>,
<number type n>
• +CME ERROR: <err>
• OK
• ERROR
Show if the command
is supported
AT*ESNU=?
• *ESNU: (list of
supported <type>s)
• +CME ERROR: <err>
• OK
• ERROR
This command sets a <type> number, in the format <number type>, in
the MS.
<type>
Description
0
1
2
3
Voice L1
Voice L2
Fax
Data
<number type>
Description
129
Default value when dialling string does not include the
international access code character ‘+’
145
Default value when dialling string includes the
international access code character ‘+’
<number>
Description
0-9, +
Number
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14. PHONEBOOK
14.11 AT+CPBF Phonebook Find
Description
Command
Possible Responses
Show the current
setting
+CPBF=<findtext>
• +CPBF:
<index1>,<number>,<type>,
<text>[[...]<CR><LF>+CBPF:
<index2>,<number>,<type>,
<text>]
• +CME ERROR: <err>
• OK
• ERROR
Show if the
command is
supported
+CPBF=?
• +CPBF: <nlength>,<tlength>
• +CME ERROR: <err>
• OK
• ERROR
Returns phone book entries whose alphanumeric field starts with
<findtext>. Only currently selected source will be searched for,
<findtext>
Description
string type
Field of maximum length <tlength>; character set as
specified by the select TE character set command, +CSCS
14.12 AT+CPBR Phonebook Read
Description
Command
Possible Responses
Read phone
book entries
+CPBR=<index1>
[,<index2>]
• +CPBR:<index1>,<number>,
<type>,<text>[[,<text_date>,
<text_time>]<CR><LF>+CPBR:
<index2>,<number>,<type>,
<text>[,<text_date>,
<text_time>]]
• +CME ERROR <err>
• OK
• ERROR
Show if the
command is
supported
+CPBR=?
• +CPBR: (list of supported
<index>s),<nlength>,<tlength>
• +CME ERROR <err>
• OK
• ERROR
Returns phone book entries in location number range <index1>...
<index2> from the current phone book memory storage selected with
+CPBS. If <index2> is left out, only location <index1> is returned.
Entry fields returned are location number <indexn>, phone number
stored there <number> (of format <type>) and text <text> associated
with the number.
<indexn>
Description
integer type
Values in the range of location numbers of phone book
memory
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<number>
Description
string type
Phone number of format <type>
<type>
Description
129
ISDN/telephony numbering plan, national/international
unknown
145
ISDN/telephony numbering plan, international number
ISDN/telephony numbering plan, national number
Other values refer to GSM 04.08 section 10.5.4.7
161
128 - 255
<text>
Description
string type
Field of maximum length <tlength>;
character set as specified by the select TE character set
command, +CSCS.
<nlength>
Description
integer type
Value indicating the maximum length of field <number>
<tlength>
Description
integer type
Value indicating the maximum length of field <text>
Example
AT+CPBR=1,99
+CPBR: 1,“44123456789”,145,“Test Number”
+CPBR: 2,“440987654321”,145,“Test number 2”
+CPBR: 3,“449876543210”,129,“Test Number 3”
OK
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14.13 AT+CPBS Phone Storage
Description
Command
Possible Responses
Set phone book
storage
AT+CPBS=<storage>
[,<password>]
• +CME ERROR <err>
• OK
• ERROR
Show the current
setting
AT+CPBS?
• +CPBS: <storage>
• +CME ERROR <err>
• OK
• ERROR
Show if the command
is supported
AT+CPBS=?
• +CPBS: (list of
supported
<storage>s)
• +CME ERROR <err>
• OK
• ERROR
Selects phone book memory storage <storage>, which is used by other
phone book commands. Read command returns currently selected
memory, and when supported by manufacturer, number of used
locations and total number of locations in the memory.
<storage>
Description
“FD”
“EN”
“ME”
“SM”
“DC”
“RC”
“MC”
Fixed dialled numbers
Emergency numbers
ME phone book
SIM phone book
ME dialled calls list (30 entries)
ME received calls list (30 entries)
ME missed calls list (30 entries)
<passwd>
Description
String type
Represents the password required when selecting
password protected <storage>s, for example PIN2 for
storage “ME”
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14.14 AT+CPBW Phonebook Write
Description
Command
Possible Responses
Request phone book
write
AT+CPBW=[<index>]
[, <number>[,<type>
[,<text>]]]
• +CME ERROR <err>
• OK
• ERROR
Show if the command
is supported
AT+CPBW=?
• +CPBW: (list of
supported
<index>s),<nlength>
,(list of supported
<type>s),<tlength>
• +CME ERROR <err>
• OK
• ERROR
Writes phone book entry in location number <index> in the current
phone book memory storage area, selected with AT+CPBS. If the
<number> and <text> parameters are omitted, the entry is deleted. If
<index> is omitted but <number> is included, the entry is written to the
first free location in the phone book.
<index>
Description
integer type
Values in the range of location numbers of phone book
memory
<number>
Description
string type
Phone number of format <type>
<type>
Description
integer format Type of address octet, default 145 when dialing string
includes international access code character "+",
otherwise 129. (refer to GSM 04.08 subclause 10.5.4.7)
129
ISDN/telephony numbering plan, national/international
unknown
145
ISDN/telephony numbering plan, international number
ISDN/telephony numbering plan, national number
Other values refer GSM 04.08 section 10.5.4.7
161
128-255
<text>
Description
string type
Field of maximum length <tlength>;
character set as specified by the select TE character set
command, +CSCS
<nlength>
Description
integer type
Value indicating the maximum length of field <number>
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<tlength>
Description
integer type
Value indicating the maximum length of field <text>
Example
AT+CPBW=1,“44123456789”,145,“Test Number”
OK
AT+CPBW=2,“440987654321”,145,“Test number 2”
OK
AT+CPBW=3,“449876543210”,129,“Test Number 3”
OK
14.15 AT*ECAW Ericsson Callers Allowed Write
Description
Command
Possible Responses
Write to or remove
from CA list
AT*ECAW=[<CAindex>] • +CME ERROR <err>
,[<groupname>][,[<stor
age>],[<PBindex>][,<CL
UID>]]
• OK
• ERROR
Show if the
command is
supported
AT*ECAW=?
• *ECAW: (list of supported
<CAindex>s),<gn_length
>,(list of supported
<storage>s)
• +CME ERROR <err>
• OK
• ERROR
Command is used for writing entries to and removing entries from the
Callers Allowed (CA) list.
If only <CAindex> is given, the entry at position <CAindex> will be
deleted.
If only <groupname> is given, a reference (group name) to a group is
added to the CA list.
If only <storage> and <PBindex> are given, a reference (PB index) to a
phonebook entry is added to the Callers Allowed (CA) list.
If only <CLUID> is given, a reference (CLUID) to the unique identifier
to a contact is added to the CA list.
Supplying <CAindex> and any of the following parameters will result
in an ME error, +CME ERROR: <err>.
If writing fails in an ME, error +CME ERROR: <err> is returned.
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Test command returns location range supported by the CA list and the
supported storages.
<CAindex>
Description
Integer type
Values in the range of location numbers of CA list
<groupname> Description
String format
Name of callers allowed group
<storage>
Description
ME
ME phonebook
<PBindex>
Description
Integer type
Values in the range of location numbers of phonebook
memory
<CLUID>
Description
Integer format LUID for contact
14.16 AT*ECAR Ericsson Callers Allowed Read
Description
Command
Possible Responses
List calls allowed
AT*ECAR=
<Caindex1>
[,<Caindex2>]
• *ECAR:<CAindex>,[<groupname>][,
[<storage>],[<PBindex>][,CLUID]]
• +CME ERROR <err>
• OK
• ERROR
Show if the
command is
supported
AT*ECAR=?
• *ECAR: (list of supported
<CAindex>s),<gn_length>,(list of
supported <storage>s)
• +CME ERROR <err>
• OK
• ERROR
This command returns entries in the Callers Allowed list. The list
consists of a mix of phonebook entries, contacts and groups. The
response consists of list index <CAindex> and one of the following
types: <groupname>, phonebook storage <storage> plus phonebook
index <PBindex>, or unique identifier to a contact <CLUID>. If
<CAindex2> is supplied, all list items from <CAindex1> to
<CAindex2> will be returned.
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If listing fails in a ME +CME ERROR: <err> is returned.
<CAindexn>
Description
Integer format Start value of location number
<groupname> Description
String format
Name of callers allowed group
<CLUID>
Description
Integer format LUID for contact
Refer to the AT*ECAW command for the <storage> and <PBindex>
parameters.
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15. Short Message Services - Point to Point
15.1 AT+CPIN
PIN Control
15.2 AT+CGSMS Select Service for MO SMS Messages
15.3 AT+CPMS Preferred Message Storage
Common for both PDU (Protocol Data Unit) and Text Modes
Description
Command
Possible Responses
Set preferred
message storage
AT+CPMS=<mem1>
[,<mem2>]
[,<mem3>]
• +CPMS:
<used1>,<total1>,<used2>,
<total2>,<used3>,<total3>
• +CMS ERROR: <err>
• OK
• ERROR
Show the current
setting
AT+CPMS?
• +CPMS:
<mem1>,<used1>,<total1,
<mem2>,<used2>,<total2,
<mem3>,<used3>,<total3>
• +CMS ERROR: <err>
• OK
• ERROR
Show if the
command is
supported
AT+CPMS=?
• +CPMS: (list of supported
<mem1>s),(list of
supported <mem2>s),(list
of supported <mem3>s)
• OK
• ERROR
Selects memory storage <mem1>, <mem2> and <mem3> to be used for
reading, writing, etc. If chosen storage is not appropriate for the ME
(but is supported by the TA), final result code +CMS ERROR: <err> is
returned.
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Test command returns lists of memory storage supported by the TA.
<mem1>
Description
string type
Memory from which messages are read and deleted
(commands List Messages +CMGL, Read Message
+CMGR and Delete Message +CMGD)
“ME”
“SM”
ME message storage
SIM message storage. Default value
<mem2>
Description
string type
Memory to which writing and sending operations are
made (commands Send Message from Storage +CMSS
and Write Message to Memory +CMGW)
“ME”
“SM”
ME message storage
SIM message storage
<mem3>
Description
string type
Memory to which received SMs are preferred to be stored
(unless forwarded directly to TE). Received CBMs are
always stored in “BM” (or some manufacturer specific
storage) unless directly forwarded to TE
“ME”
“SM”
ME message storage
SIM message storage
<used1>,<used2>,<used3> Description
integer type
Total number of messages currently in
<mem1>, <mem2> and <mem3> respectively
<total1>,<total2> ,<total3> Description
integer type
Total number of message locations in
<mem1>, <mem2> and <mem3> respectively
Examples
AT+CPMS=?
+CPMS: (“ME”,“SM”),(“ME”,“SM”),(“ME”,“SM”)
OK
AT+CPMS?
+CPMS: “ME”,0,40,“SM”,1,15,“ME”,0,40
OK
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AT+CPMS=“sm”,“sm”,“sm”
+CPMS: 1,15,1,15,1,15
OK
15.4 AT+CSCA Service Centre Address
Common for both PDU and Text Modes
Description
Command
Possible Responses
Set service centre
address
AT+CSCA=<sca>
[,<tosca>]
• OK
• ERROR
Show the current
setting
AT+CSCA?
• +CSCA:
<sca>,<tosca>
• OK
• ERROR
Show if the command
is supported
AT+CSCA=?
• OK
• ERROR
Updates the SMSC address, through which mobile originated SMs are
transmitted. In text mode, the setting is used by send (+CMGS) and
write (+CMGW) commands. In PDU mode, the setting is used by the
same commands, but only when the length of the SMSC address coded
into <pdu> parameter equals zero. Note that a “+” in front of the number
in <sca> has precedence over the <tosca> parameter, so that a number
starting with “+” will always be treated as an international number.
<sca>
Description
string type
GSM 04.11 (3G TS 24.011) RP SC address Address-Value
field in string format; BCD numbers (or GSM default
alphabet characters) are converted to characters of the
currently selected TE character set
<tosca>
Description
integer type
GSM 04.11 (3G TS 24.011) RP SC address type-of-address
octet in integer format
129
ISDN/telephony numbering plan, national/international
unknown
145
ISDN/telephony numbering plan, international number
ISDN/telephony numbering plan, national number
Other values refer GSM 04.08 section 10.5.4.7
161
128-255
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Example
AT+CSCA?
+CSCA: “44385016005”,145
OK
15.5 AT+CMGF Message Format
Common for both PDU and Text Modes
Description
Command
Possible Responses
Set message format
AT+CMGF=<mode>
• OK
• ERROR
Show the current
setting
AT+CMGF?
• +CMGF: <mode>
• OK
• ERROR
Show if the command
is supported
AT+CMGF=?
• +CMGF: (list of
supported
<mode>s)
• OK
• ERROR
This command tells the TA, which input and output format to use for
messages. The <mode> parameter indicates the format of messages
used with send, list, read and write commands, and unsolicited result
codes resulting from received messages. Mode can be either PDU mode
(entire TP data units used) or text mode (headers and body of the
messages given as separate parameters).
Test command returns supported modes as a compound value.
<mode>
Description
0
1
PDU mode
Text mode
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15.6 AT+CMGW Write Message to Memory
PDU Mode
Description
Command
Possible Responses
Write message to
memory
AT+CMGW=<length>
[,<stat>]<CR>
PDU is given<ctrl-Z/ESC>
• +CMGW: <index>
• +CMS ERROR: <err>
• OK
• ERROR
Show if the command
is supported
AT+CMGW=?
• OK
• ERROR
Stores a message to memory storage <mem2>. Memory location
<index> of the stored message is returned. By default message status
will be set to ‘stored unsent’, but parameter <stat> allows other status
values to be given. ME/TA manufacturer may choose to use different
default <stat> values for different message types. Entering PDU is the
same as specified by the send message command, +CMGS. If writing
fails, final result code +CMS ERROR: <err> is returned. See
<stat>
Description
2
Stored unsent message (only applicable to SMs)
<index>
Description
Integer type
Value in the range of location numbers supported by the
associated memory
<length>
Description
Integer type
Value indicating in PDU mode (+CMGF=0), the length of
the actual TP data unit in octets (i.e. the RP layer SMSC
address octets are not counted in the length)
<pdu>
Description
...
In the case of SMS: GSM 04.11 SC address followed by
GSM 03.40 TPDU in hexadecimal format: ME/TA converts
each octet of TP data unit into two IRA character long
hexadecimal number (e.g. octet with integer value 42 is
presented to TE as two characters 2A (IRA 50 and 65))
In the case of CBS: GSM 03.41 TPDU in hexadecimal format
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Text Mode
Description
Command
Possible Responses
Write message to
memory
AT+CMGW [=<oa/da>
[,<tooa/toda>[,<stat>]]]
<CR>
Text is entered <ctrl-Z/
ESC>
• +CMGW: <index>
• +CMS ERROR: <err>
• OK
• ERROR
Show if the command
is supported
AT+CMGW=?
• OK
• ERROR
Stores message (either SMS-DELIVER or SMS-SUBMIT) to memory
storage <mem2>. Memory location <index> of the stored message is
returned. By default message status will be set to ‘stored unsent’, but
parameter <stat> allows also other status values to be given. The
entering of text is done as specified in the send message command,
+CMGS. If writing fails, final result code +CMS ERROR: <err> is
returned.
Note!
SMS-COMMANDs and SMS-STATUS-REPORTs cannot be stored in
text mode.
<stat>
Description
2
Stored unsent message (only applicable to SMs)
<oa>
Description
String type
GSM 03.40 TP-Originating-Address Value in string format;
BCD numbers (or GSM default alphabet characters) are
converted to characters of the currently selected TE
character (refer command +CSCS). Type of address given
by <tooa>
<da>
Description
String type
GSM 03.40 TP-Destination-Address Value in string format;
BCD numbers (or GSM default alphabet characters) are
converted to characters of the currently selected TE
character (refer command +CSCS). Type of address given
by <toda>
<tooa>
Description
String type
GSM 04.11 TP-Originating-Address Type-of-Address octet
in integer format (default refer <toda>)
<toda>
Description
String type
GSM 04.11 TP-Destination- Address Type-of-Address octet
in integer format (when first character of <da> is +(IRA 43)
default is 145, otherwise default is 129
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<index>
Description
Integer type
Value in the range of location numbers supported by the
associated memory
15.7 AT+CMGS Send Message
PDU Mode
Description
Command
Possible Responses
Send message
AT+CMGS=<length>
<CR>
PDU is given<ctrl-Z/
ESC>
• +CMGS:
<mr>[,<ackpdu>]
• +CMS ERROR: <err>
• OK
• ERROR
Show if the command
is supported
AT+CMGS=?
• OK
• ERROR
Sends a message from a TE to the network (SMS-SUBMIT). Message
reference value <mr> is returned to the TE on successful message
delivery. Optionally, when AT+CSMS <service> value is 1 and there is
network support, <ackpdu> is returned. Values can be used to identify
message upon unsolicited delivery status report result code. If sending
fails in a network or an ME error, final result code +CMS ERROR:
<err> is returned. This command is abortable.
• <length> must indicate the number of octets coded in the TP layer
data unit to be given (i.e. SMSC address octets are excluded).
• The TA shall send a four character sequence
<CR><LF><greater_than><space> (IRA 13, 10, 62, 32) after
command line is terminated with <CR>; after that PDU can be given
from TE to ME/TA.
• The DCD signal is in the ON state as PDU is given.
• The echoing of given characters back from the TA is controlled by
V.25ter echo command E.
• The PDU shall be hexadecimal format (similarly as specified for
<pdu>) and given in one line; ME/TA converts this coding into the
actual octets of PDU.
• When the length octet of the SMSC address (given in the <pdu>)
equals zero, the SMSC address set with command Service Centre
Address +CSCA is used.
• Sending can be cancelled by giving <ESC> character (IRA 27).
• <ctrl-Z> (IRA 26) must be used to indicate the ending of PDU.
<mr>
Description
Integer type
GSM 03.40 TP-Message-Reference in integer format
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<length>
Description
Integer type
Value indicating in PDU mode (+CMGF=0), the length of
the actual TP data unit in octets (i.e. the RP layer SMSC
address octets are not counted in the length)
<ackpdu>
Description
...
GSM 03.40 RP-User-Data element of RP-ACK PDU; format is
same as for <pdu> in case of SMS, but without GSM 04.11
SC address field and parameter shall be bounded by
double quote characters like a normal string type
parameter
Text Mode
Description
Command
Possible Responses
Send message
AT+CMGS=<da>
[,<toda>] <CR>
Text is entered<ctrl-Z/
ESC>
• +CMGS:
<mr>[,<scts>]
• +CMS ERROR: <err>
• OK
• ERROR
Show if the command
is supported
AT+CMGS=?
• OK
• ERROR
Sends a message from a TE to the network (SMS-SUBMIT). Message
reference value <mr> is returned to the TE on successful message
delivery. Optionally, when AT+CSMS <service> value is 1 and there is
network support, <scts> is returned. Values can be used to identify
message upon unsolicited delivery status report result code. If sending
fails in a network or an ME error, final result code +CMS ERROR:
<err> is returned. This command is abortable.
• The entered text (GSM 03.40 TP-Data-Unit) is sent to address <da>
and all current settings (refer Set Text Mode Parameters +CSMP and
Service Centre Address +CSCA) are used to construct the actual
PDU in the ME/TA.
• The TA shall send a four character sequence
<CR><LF><greater_than><space> (IRA 13, 10, 62, 32) after the
command line is terminated with <CR>; after that text can be
entered from the TE to the ME/TA.
• The DCD signal is in the ON state as text is entered.
• The echoing of entered characters back from the TA is controlled by
V.25ter echo command E.
• The entered text should be formatted as follows:
if <dcs> (set with +CSMP) indicates that GSM 03.38 default
alphabet is used and <fo> indicates that GSM 03.40 TP-User-
Data-Header-Indication is not set:
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if TE character set other than “HEX” (refer command Select
TE Character Set +CSCS in TS 07.07): ME/TA converts the
entered text into GSM alphabet according to rules of Annex
A; backspace can be used to delete last character and
carriage returns can be used (previously mentioned four
character sequence shall be sent to the TE after every
carriage return entered by the user);
if TE character set is “HEX”: the entered text should consist
of two IRA character long hexadecimal numbers which
ME/TA converts to 7-bit characters of GSM alphabet (e.g.
17 (IRA 49 and 55) will be converted to character Π (GSM
23));
if <dcs> indicates that 8-bit or UCS2 data coding scheme is used
or <fo> indicates that GSM 03.40 TP-User-Data-Header-
Indication is set: the entered text should consist of two IRA
character long hexadecimal numbers which ME/TA converts into
8-bit octet (e.g. two characters 2A (IRA 50 and 65) will be
converted to an octet with integer value 42).
• Sending can be cancelled by giving <ESC> character (IRA 27).
• <ctrl-Z> (IRA 26) must be used to indicate the ending of the
message body.
<da>
Description
String type
GSM 03.40 TP-Destination-Address Value in string format;
BCD numbers (or GSM default alphabet characters) are
converted to characters of the currently selected TE
character (refer command +CSCS). Type of address given
by <toda>
<toda>
Description
String type
GSM 04.11 TP-Destination- Address Type-of-Address octet
in integer format (when first character of <da> is +(IRA 43)
default is 145, otherwise default is 129
<mr>
Description
String type
GSM 03.40 TP-Service-Centre-Time-Stamp in time-string
format (refer <dt>)
<scts>
Description
Integer
GSM 03.40 TP-Message-Reference
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Example
AT+CMGF=1
OK
AT+CSDH=1
OK
AT+CSMP=17,167,0,0
OK
AT+CMGS=“+447747008670”
> Test SMSꢀ
+CMGS: 15
OK
15.8 AT+CMSS Send From Storage
PDU mode
Description
Command
Possible Responses
Send from storage
AT+CMSS=<index>
• +CMSS: <mr>
• +CMS ERROR: <err>
• OK
• ERROR
Show if the command
is supported
AT+CMSS=?
• OK
• ERROR
Sends message with location value <index> from message storage
<mem2> to the network (SMS-SUBMIT or SMS-COMMAND).
Reference value <mr> is returned to the TE on successful message
delivery. If sending fails in a network or an ME error, final result code
+CMS ERROR: <err> is returned. This command is abortable. See
<index>
Description
Integer type
Value in the range of location numbers supported by the
associated memory
<mr>
Description
Integer type
GSM 03.40 TP-Message-Reference in integer format
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Text Mode
Description
Command
Possible Responses
Send from storage
AT+CMSS=<index>
[,<da> [,<toda>]]
• +CMSS: <mr> [,<scts>]
• +CMS ERROR: <err>
• OK
• ERROR
Show if the
command is
supported
AT+CMSS=?
• OK
• ERROR
Sends message with location value <index> from message storage
<mem2> to the network (SMS-SUBMIT or SMS-COMMAND).
Reference value <mr> is returned to the TE on successful message
delivery. Optionally, when +CSMS <service> value is 1 and network
supports, <scts> is returned. If sending fails in a network or an ME
error, final result code +CMS ERROR: <err> is returned. This
command is abortable.
<index>
Description
Integer type
Value in the range of location numbers supported by the
associated memory
<da>
Description
String type
GSM 03.40 TP-Destination-Address Value in string format;
BCD numbers (or GSM default alphabet characters) are
converted to characters of the currently selected TE
character (refer command +CSCS). Type of address given
by <toda>
<toda>
Description
String type
GSM 04.11 TP-Destination- Address Type-of-Address octet
in integer format (when first character of <da> is +(IRA 43)
default is 145, otherwise default is 129
<scts>
Description
String type
GSM 03.40 TP-Service-Centre-Time-Stamp in time-string
format (refer <dt>)
<mr>
Description
Integer type
GSM 03.40 TP-Message-Reference in integer format
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15.9 AT+CMGC
Send Command
PDU Mode
Description
Command
Possible Responses
Send command
message
AT+CMGC=<length><CR>
<pdu><ctrl-Z/ESC>
• if PDU mode
(+CMGF=0) and
sending successful:
+CMGC:
<mr>[,<ackpdu>]
• if sending fails:
+CMS ERROR: <err>
• OK
• ERROR
Show if the
command is
supported
AT+CMGC=?
• OK
• ERROR
Sends a command message from a TE to the network (SMS-
COMMAND). The entering of PDU is as specified in the send message
command, +CMGS. Message reference value <mr> is returned to the
TE on successful message delivery. Optionally (when +CSMS
<service> value is 1 and network supports) <ackpdu> is returned.
Values can be used to identify message upon unsolicited delivery status
report result code. If sending fails in a network or an ME error, final
result code +CMS ERROR: <err> is returned. This command is
abortable.
<length>
Description
Integer type
Value indicating in PDU mode (+CMGF=0), the length of
the actual TP data unit in octets (i.e. the RP layer SMSC
address octets are not counted in the length)
<pdu>
Description
String
In the case of SMS: GSM 04.11 SC address followed by
GSM 03.40 TPDU in hexadecimal format: ME/TA converts
each octet of TP data unit into two IRA character long
hexadecimal number (e.g. octet with integer value 42 is
presented to TE as two characters 2A (IRA 50 and 65))
In the case of CBS: GSM 03.41 TPDU in hexadecimal format
<mr>
Description
Integer type
GSM 03.40 TP-Message-Reference in integer format
<ackpdu>
Description
String
GSM 03.40 RP-User-Data element of RP-ACK PDU; format is
same as for <pdu> in case of SMS, but without GSM 04.11
SC address field and parameter shall be bounded by
double quote characters like a normal string type
parameter
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Text Mode
Description
Command
Possible Responses
Send command
message
AT+CMGC=<fo>,<ct>[,<pid>
[,<mn>[,<da>[,<toda>]]]]
<CR>
• if PDU mode
(+CMGF=1) and
sending successful:
+CMGC:
Text is entered<ctrl-Z/ESC>
<mr>[,<scts>]
• if sending fails:
+CMS ERROR: <err>
• OK
• ERROR
Show if the
commands is
supported
AT+CMGC=?
• OK
• ERROR
Sends a command message from a TE to the network (SMS-
COMMAND). The entering of text is as specified in the send message
command, +CMGS, but the format is fixed to be a sequence of two IRA
character long hexadecimal numbers, which the ME/TA converts into
8-bit octets (refer to +CMGS). Message reference value <mr> is
returned to the TE on successful message delivery. Optionally, when
+CSMS <service> value is 1 and there is network support, <scts> is
returned. Values can be used to identify message upon unsolicited
delivery status report result code. If sending fails in a network or an ME
error, final result code +CMS ERROR: <err> is returned. This
command is abortable.
<fo>
Description
0
1
2
3
First octet of SMS-DELIVER in integer format
First octet of SMS_SUBMIT in integer format
First octet of SMS-STATUS-REPORT in integer format
First octet of SMS-COMMAND in integer format
<ct>
Description
Integer
GSM 03.40 TP-Command-Type. Default value is 0
<pid>
Description
0-255
Protocol Identifier in integer format. Default value is 0,
according to 07.05 section 9.2.3.9
<mn>
Description
Integer
GSM 03.40 TP-Message-Number
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<da>
Description
String type
GSM 03.40 TP-Destination-Address Value in string format;
BCD numbers (or GSM default alphabet characters) are
converted to characters of the currently selected TE
character (refer command +CSCS). Type of address given
by <toda>
<toda>
Description
String type
GSM 04.11 TP-Destination- Address Type-of-Address octet
in integer format (when first character of <da> is +(IRA 43)
default is 145, otherwise default is 129
<mr>
Description
Integer type
GSM 03.40 TP-Message-Reference in integer format
<scts>
Description
String type
GSM 03.40 TP-Service-Centre-Time-Stamp in time-string
format (refer to <dt>)
15.10 AT+CNMI New Message Indications to TE
PDU Mode
Description
Command
Possible Responses
Set new message
indication to TE
AT+CNMI=[<mode>
[,<mt>[,<bm>[,<ds>
]]]]
• +CMS ERROR: <err>
• OK
• ERROR
Show the current
setting
AT+CNMI?
• +CNMI:
<mode>,<mt>,<bm>,<ds>
• OK
• ERROR
Show if the
command is
supported
AT+CNMI=?
• +CNMI:
(list of supported <mode>s),
(list of supported <mt>s),
(list of supported <bm>s),
(list of supported <ds>s)
• OK
• ERROR
Selects the procedure for the way in which new messages received from
the network, are indicated to the TE when it is active, e.g. DTR signal
is ON. If the TE is inactive (DTR signal is OFF), message receiving is
carried out as specified in GSM 03.38 (3G TS 23.038).
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If the command fails and the error is related to mobile equipment or
network, the final result code CMS ERROR: <err> is returned.
<mode>
Description
3
Forward unsolicited result codes directly to the TE. TA-TE
link specific inband technique used to embed result
codes and data when TA is in on-line data mode
<mt>
Description
0
No SMS-DELIVER indications are routed to the TE.
No class, Class 0, class 1 and class 3 use <mem3> as
preferred storage. Class 2 messages shall be stored in the
SIM. If it this is not possible then the MS shall send an error
message accordingly to GSM 03.38
1
2
SMS-DELIVER is stored into ME/TA and the indication of the
memory location is routed to the TE using unsolicited result
code:
+CMTI: <mem>,<index>
Class 0, class 1, and class 3 SMS-DELIVERs are routed
directly to the TE using the unsolicited result code but not
stored in ME/TA:
+CMT:[<alpha >], <length><CR><LF><pdu> (PDU mode
enabled)
Class 2 data coding scheme result in indication as defined
in <mt>=1
3
Class 3 SMS-DELIVERs are routed directly to TE using
unsolicited result codes +CMT: <length><CR><LF><pdu>.
Class 3 SMS-DELIVER is not stored in ME/TA. Messages of
other data coding schemes result in indication as defined
in <mt>=1
<bm>
Description
0
Store message to “BM” (or some manufacturer specific
memory). No CBM indications are routed to the TE
2
New CBMs are routed directly to the TE using unsolicited
result code:
+CBM: <length><CR><LF><pdu> (PDU mode enabled).
New CBMs are not stored in CBM memory
<ds>
Description
0
No SMS-STATUS-REPORTs are routed to the TE. SMS-STATUS-
REPORT is stored in ME/TA
1
2
SMS-STATUS-REPORTs are routed to the TE using unsolicited
result code: +CDS: < length>< CR>< LF>< pdu> (PDU
mode enabled). SMS-STATUS-REPORT is not stored in ME/TA
SMS-STATUS-REPORTs are routed to the TE using unsolicited
result code: +CDSI: < mem><index> (PDU mode enabled).
SMS-STATUS-REPORT is stored in ME/TA
Unsolicited Result codes:
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+CMT: <length><CR><LF><pdu>
+CMTI: <mem>,<index>
+CBM: <length><CR><LF><pdu>
+CDS: <length><CR><LF><pdu>
+CDSI: <mem><index>
Text Mode
Description
Command
Possible Responses
Set new message
indication to TE
AT+CNMI=[<mode>
[,<mt>[,<bm>[,<ds>
]]]]
• +CMS ERROR: <err>
• OK
• ERROR
Show the current
setting
AT+CNMI?
• +CNMI:
<mode>,<mt>,<bm>,<ds>
• OK
• ERROR
Show if the
command is
supported
AT+CNMI=?
• +CNMI:
(list of supported <mode>s),
(list of supported <mt>s),
(list of supported <bm>s),
(list of supported <ds>s)
• OK
• ERROR
Selects the procedure for the way in which new messages received from
the network, are indicated to the TE when it is active, e.g. DTR signal
is ON. If TE is inactive (DTR signal is OFF), message receiving is
carried out as specified in GSM 03.38 (3G TS 23.038).
If the command fails and the error is related to mobile equipment or
network, the final result code CMS ERROR: <err> is returned.
<mode>
Description
3
Forward unsolicited result codes directly to the TE. TA-TE
link specific inband technique used to embed result
codes and data when TA is in on-line data mode
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<mt>
Description
0
No SMS-DELIVER indications are routed to the TE.
No class, Class 0, class 1 and class 3 use <mem3> as
preferred storage. Class 2 messages shall be stored in the
SIM. If it this is not possible then the MS shall send an error
message accordingly to GSM 03.38
1
2
SMS-DELIVER is stored into ME/TA and the indication of the
memory location is routed to the TE using unsolicited result
code:
+CMTI: <mem>,<index>
Class 0, class 1, and class 3 SMS-DELIVERs are routed
directly to the TE using the unsolicited result code:
+CMT:<oa>, [<alpha>, <scts> [ ,<tooa>,<fo>,<pid>,<dcs>,
<sca>,<tosca>,<length>]<CR><LF><data> (text mode
enabled). About parameters in italics, refer to the show
text mode command, +CSDH
3
Class 3 SMS-DELIVERs are routed directly to TE using
unsolicited result codes +CMT:<oa>, [<alpha>, <scts> [
,<tooa>,<fo>,<pid>,<dcs>,<sca>,<tosca>,<length>]<CR>
<LF><data> (Text Mode enabled). About parameters in
italics, refer to the show text mode command, +CSDH.
Messages of other data coding schemes result in
indication as defined in <mt>=1
<bm>
Description
0
Store message to “BM” (or some manufacturer specific
memory). No CBM indications are routed to the TE
2
New CBMs are routed directly to the TE using unsolicited
result code:
+CBM:
<sn>,<mid>,<dcs>,<page>,<pages><CR><LF><data>
(Text mode enabled)
<ds>
Description
0
1
No SMS-STATUS-REPORTs are routed to the TE
SMS-STATUS-REPORTs are routed to the TE using unsolicited
result code: : +CDS:
<fo>,<mr>,[<ra>],[<tora>],<scts>,<dt>,<st> (Text mode
enabled). SMS-STATUS-REPORT is not stored in ME/TA
2
SMS-STATUS-REPORTs are routed to the TE using unsolicited
result code: +CDSI: < mem><index> (Text mode enabled).
SMS-STATUS-REPORT is stored in ME/TA
Unsolicited Result codes:
+CMT:<oa>, [<alpha>, <scts>
[,<tooa>,<fo>,<pid>,<dcs>,<sca>,<tosca>,<length>]<CR><LF>
<data> (Text Mode enabled). Refer to the show text mode command,
+CSDH for information on the parameters in italics.
+CMTI: <mem>,<index>
+CBM: <sn>,<mid>,<dcs>,<page>,<pages><CR><LF><data>
+CDS: <fo>,<mr>,[<ra>],[<tora>],<scts>,<dt>,<st>
+CDSI: <mem><index>
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Example
Display cell broadcast messages:
AT+CNMI=3,0,2,0,0
15.11 AT+CMGR Read Message
PDU Mode
Description
Command
Possible Responses
Read
message
AT+CMGR=
<index>
• +CMGR: <stat>,[<alpha>],<length>]
<CR><LF><pdu>
• +CMS ERROR: <err>
• OK
• ERROR
Show if the
command is
supported
AT+CMGR=?
• OK
• ERROR
Returns message with location value <index> from preferred message
storage <mem1> to the TE. Status of the message and entire message
data unit <pdu> is returned. If status of the message is ‘received
unread’, status in the storage changes to ‘received read’. If reading fails,
final result code +CMS ERROR: <err> is returned.
<stat>
Description
0
1
2
3
Received unread message (i.e. new message)
Received read message
Stored unsent message (only applicable to SMs)
Stored sent message (only applicable to SMs)
<index>
Description
Integer type
Value in the range of location numbers supported by the
associated memory
<alpha>
Description
String type
Manufacturing specific. Should be left empty but not
omitted
<length>
Description
Integer type
Value indicating in PDU mode (+CMGF=0), the length of
the actual TP data unit in octets (i.e. the RP layer SMSC
address octets are not counted in the length)
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<pdu>
Description
In the case of SMS: GSM 04.11 SC address followed by
GSM 03.40 TPDU in hexadecimal format: ME/TA converts
each octet of TP data unit into two IRA character long
hexadecimal number (e.g. octet with integer value 42 is
presented to TE as two characters 2A (IRA 50 and 65))
In the case of CBS: GSM 03.41 TPDU in hexadecimal format
Note!
It is possible to send SMS in PDU mode, if help for this is required then
please contact customer support.
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Text Mode
Description
Command
Possible Responses
Read
message
AT+CMGR=
[<index>]
• if text mode (+CMGF=1), command
successful and SMS-DELIVER:
+CMGR:
<stat>,<oa>,[<alpha>],<scts>,[<tooa>,
<fo>,<pid>,<dcs>,<sca>,<tosca>,
<length>]<CR><LF><data>
• if text mode (+CMGF=1), command
successful and SMS-SUBMIT:
+CMGR:
<stat>,<da>,[<alpha>],[<toda>,<fo>,
<pid>,<dcs>,[<vp>],<sca>,<tosca>,
<length>]<CR><LF><data>
• if text mode (+CMGF=1), command
successful and SMS-STATUS-REPORT:
+CMGR:
<stat>,<fo>,<mr>,[<ra>],[<tora>],
<scts>,<dt>,<st>
• if text mode (+CMGF=1), command
successful and SMS-COMMAND:
+CMGR:
<stat>,<fo>,<ct>[,<pid>,[<mn>],[<da>],
[<toda>],<length><CR><LF><cdata>]
• if text mode (+CMGF=1), command
successful and CBM storage:
+CMGR:
<stat>,<sn>,<mid>,<dcs>,<page>,
<pages><CR><LF><data>
• +CMS ERROR: <err>
• OK
• ERROR
Show if the
command is
supported
AT+CMGR=?
• OK
• ERROR
Returns messages with location index <index> from message storage
<mem1> to the TE. About text mode parameters in Italics, refer
command Show Text Mode Parameters (+CSDH), If the status of the
message is ‘received unread’, status in the storage changes to ‘received
read’. If listing fails final result code +CMS ERROR: <err> is returned.
<index>
Description
Integer type
Value in the range of location numbers supported by
<mem1>
<stat>
Description
0
1
2
3
Received unread message (new message)
Received read message
Stored unsent message (only applicable to SMs)
Stored sent message (only applicable to SMs)
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<oa>
Description
String type
GSM 03.40 TP-Originating-Address Value in string format;
BCD numbers (or GSM default alphabet characters) are
converted to characters of the currently selected TE
character (refer command +CSCS). Type of address given
by <tooa>
<da>
Description
String type
GSM 03.40 TP-Destination-Address Value in string format;
BCD numbers (or GSM default alphabet characters) are
converted to characters of the currently selected TE
character (refer command +CSCS). Type of address given
by <toda>
<toda>
Description
String type
GSM 04.11 TP-Destination- Address Type-of-Address octet
in integer format (when first character of <da> is +(IRA 43)
default is 145, otherwise default is 129
<tooa>
Description
String type
GSM 04.11 TP-Originating-Address Type-of-Address octet
in integer format (default refer <toda>)
<tora>
Description
String type
GSM 04.11 TP-Recipient-Address Type-of-Address octet in
integer format (default refer <toda>)
<alpha>
Description
String type
Manufacturing specific. Should be left empty but not
omitted, i.e. commas shall mark the place were it should
be. Used character set should be the one selected with
command Select TE Character Set +CSCS
<scts>
Description
String type
GSM 03.40 TP-Service-Centre-Time-Stamp in time-string
format (refer <dt>)
<length>
Description
Integer type
Value indicating in PDU mode (+CMGF=0), the length of
the actual TP data unit in octets (i.e. the RP layer SMSC
address octets are not counted in the length)
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<data>
The entered text should be formatted as follows:
if <dcs> (set with +CSMP) indicates that GSM 03.38 default alphabet is used and
<fo> indicates that GSM 03.40 TP-User-Data-Header-Indication is not set:
if TE character set other than "HEX" (refer command Select TE Character Set
+CSCS in TS 07.07): ME/TA converts the entered text into GSM alphabet
according to rules of Annex A; backspace can be used to delete last
character and carriage returns can be used (previously mentioned four
character sequence shall be sent to the TE after every carriage return
entered by the user);
if TE character set is "HEX": the entered text should consist of two IRA
character long hexadecimal numbers which ME/TA converts to 7-bit
characters of GSM alphabet (e.g. 17 (IRA 49 and 55) will be converted to
character Π (GSM 23));
if <dcs> indicates that 8-bit or UCS2 data coding scheme is used or <fo> indicates
that GSM 03.40 TP-User-Data-Header-Indication is set: the entered text should
consist of two IRA character long hexadecimal numbers which ME/TA converts
into 8-bit octet (e.g. two characters 2A (IRA 50 and 65) will be converted to an
octet with integer value 42);
sending can be cancelled by giving <ESC> character (IRA 27)
<ctrl-Z> (IRA 26) must be used to indicate the ending of the message body
<fo>
Description
0
1
2
3
First octet of SMS-DELIVER in integer format
First octet of SMS_SUBMIT in integer format
First octet of SMS-STATUS-REPORT in integer format
First octet of SMS-COMMAND in integer format
<mr>
Description
Integer
GSM 03.40 TP-Message_Reference
<ra>
Description
String type
GSM 03.40 TP-Recipient-Address-Value field. BCD (or GSM
default alphabet) are converted to characters of the
currently selected TE character set (refef command
+CSCS. Type of address given by <tosca>
<dt>
Description
String type
GSM 03.40 TP-Discharge-Time in string format "yy/mm/
dd,hh:mm:ss±zz where characters indicate year, month,
day, hour,minutes, seconds and time zone
<st>
Description
Integer
GSM 03.40 TP-status
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<ct>
Description
Integer
GSM 03.40 TP--command-type. Default value is 0
<sn>
Description
Integer
GSM 03.41 CBM serial number
<mid>
Description
String type
All different possible combinations of CBM message
identifiers (refer <mid>) (default is empty string);
e.g. “0,1,5-7”
<mid> GSM 03.41 CBM message identifier in integer format
<page>
Description
Integer format GSM 03.41 CBM page parameter bits 4-7 in integer format
<pages>
Description
Integer type
GSM 03.41 CBM page parameter bits 0-3 in integer format
<pid>
Description
0 - 255
Protocol Identifier in integer format. Default value is 0,
according to 07.05 section 9.2.3.9
<dcs>
Description
0 - 255
Data coding scheme. See GSM 03.48. UCS2 and
compressed text not supported
<sca>
Description
String type
GSM 04.11 RP SC address Address-Value field in string
format; BCD numbers (or GSM default alphabet
characters) are converted to characters of the currently
selected TE character set
<tosca>
Description
Integer type
GSM 04.11 RP SC address type-of-address octet in integer
format
129
ISDN/telephony numbering plan, national/international
unknown
145
ISDN/telephony numbering plan, international number
ISDN/telephony numbering plan, national number
Other values refer to GSM 04.08 section 10.5.4.7
161
128 - 255
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<vp>
Description
0 - 143
(TP-VP+1) x 5 minutes (i.e. 5 minute intervals up to 12 hous)
12 hours + ((TP_VP-143) x 30 minutes)
(TP-VP-166) x 1 day
144 - 167
168 - 196
197 - 255
(TP-VP-192) x 1 week
<mn>
Description
Integer type
GSM 03.40 TP-message-number
Example
AT+CMGR
R1A100
CXC1122112
OK
15.12 AT+CMGL List Message
PDU Mode
Description
Command
Possible Responses
List message
AT+CMGL [=<stat>] • +CMGL:
<index>,<stat>,[<alpha>],<length>
<CR><LF><pdu>[<CR><LF>
+CMGL:
<index>,<stat>,[<alpha>],<length>
<CR><LF><pdu>[…]]
• +CMS ERROR: <err>
Show if the
command is
supported
AT+CMGL=?
• +CMGL: (list of supported <stat>s)
Note!
Returns messages with status value <stat> from preferred message
storage <mem1> to the TE. Entire data units <pdu> are returned. If
status of the message is ‘received unread’, status in the storage changes
to ‘received read’. If listing fails, final result code +CMS ERROR:
<err> is returned.
<stat>
Description
0
Received unread message (i.e. new message)
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<stat>
Description
1
2
3
4
Received read message
Stored unsent message (only applicable to SMs)
Stored sent message (only applicable to SMs)
All messages (only applicable to +CMGL command)
<index>
Description
Integer type
Value in the range of location numbers supported by the
associated memory
<alpha>
Description
String type
Manufacturing specific. Should be left empty but not
omitted
<length>
Description
Integer type
Value indicating in PDU mode (+CMGF=0), the length of
the actual TP data unit in octets (i.e. the RP layer SMSC
address octets are not counted in the length)
<pdu>
Description
In the case of SMS: GSM 04.11 SC address followed by
GSM 03.40 TPDU in hexadecimal format: ME/TA converts
each octet of TP data unit into two IRA character long
hexadecimal number (e.g. octet with integer value 42 is
presented to TE as two characters 2A (IRA 50 and 65))
In the case of CBS: GSM 03.41 TPDU in hexadecimal format
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Text Mode
Description
List message
Command
Possible Responses
AT+CMGL
=[<stat>]
• If text mode (+CMGF=1), command
successful and SMS-SUBMITs and SMS-
DELIVERs:
+CMGL:
<index1>,<stat>,<oa/da>,[<alpha>],
[<scts>][,<tooa/toda>,<length>]
<CR><LF><data>[<CR><LF>
+CMGL:
<index2>,<stat>,<oa/da>,[<alpha>],
[<scts>][,<tooa/toda>,<length>]
<CR><LF><data>[…]]
• If text mode (+CMGF=1), command
successful and SMS-STATUS-REPORT:
+CMGL:
<index1>,<stat>,<fo>,<mr>, [<ra>],
[<tora>],<scts>,<dt>,<st> [<CR><LF>
+CMGL:
<index2>,<stat>,<fo>,<mr>,[<ra>],
[<tora>],<scts>,<dt>,<st>[…]]
• If text mode (+CMGF=1), command
successful and SMS-COMMANDs:
+CMGL:
<index>,<stat>,<fo>,<ct> [<CR><LF>
+CMGL:
<index>,<stat>,<fo>,<ct>[…]]
• If text mode (+CMGF=1), command
successful and CBM storage:
+CMGL:
<index>,<stat>,<sn>,<mid>,<page>,
<pages>,<CR><LF><data>[<CR><LF>
+CMGL:
<index>,<stat>,<sn>,<mid>,<page>,
<pages><CR><LF> <data>[…]]
• Otherwise:
+CMS ERROR: <err>
Show the
current
setting
AT+CMGL?
• +CMGL:<stat>
• +CMS ERROR: <err>
Show if the
command is
supported
AT+CMGL=?
• +CMGL: (list of supported <stat>s)
• +CMS ERROR: <err>
Returns messages with status value <stat> from message storage
<mem1> to the TE. About text mode parameters in Italics, refer
command Show Text Mode Parameters (+CSDH). If the status, of the
message is ‘received unread’, status in the storage changes to ‘received
read’. If listing fails final result code +CMS ERROR: <err> is returned.
<index>
Description
Integer type
Value in the range of location numbers supported by
<mem1>
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<stat>
Description
Integer
Indicates the status of messages in memory
Received unread message (new message)
Received read message
0
1
2
3
4
Stored unsent message (only applicable to SMs)
Stored sent message (only applicable to SMs)
All messages (only applicable to +CMGL command)
<oa>
Description
String type
GSM 03.40 TP-Originating-Address Value in string format;
BCD numbers (or GSM default alphabet characters) are
converted to characters of the currently selected TE
character (refer command +CSCS). Type of address given
by <tooa>
<da>
Description
String type
GSM 03.40 TP-Destination-Address Value in string format;
BCD numbers (or GSM default alphabet characters) are
converted to characters of the currently selected TE
character (refer command +CSCS). Type of address given
by <toda>
<toda>
Description
String type
GSM 04.11 TP-Destination- Address Type-of-Address octet
in integer format (when first character of <da> is +(IRA 43)
default is 145, otherwise default is 129
<tooa>
Description
String type
GSM 04.11 TP-Originating-Address Type-of-Address octet
in integer format (default refer <toda>)
<tora>
Description
String type
GSM 04.11 TP-Recipient-Address Type-of-Address octet in
integer format (default refer <toda>)
<alpha>
Description
String type
Manufacturing specific. Should be left empty but not
omitted i.e.
commas shall mark the place were it should be. Used
character set should be the one selected with command
Select TE Character Set +CSCS
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<scts>
Description
String type
GSM 03.40 TP-service-centre-time-stamp in time-string
format (refer <dt>)
<length>
Description
Integer type
Value indicating in PDU mode (+CMGF=0), the length of
the actual TP data unit in octets (i.e. the RP layer SMSC
address octets are not counted in the length)
<data>
The entered text should be formatted as follows:
if <dcs> (set with +CSMP) indicates that GSM 03.38 default alphabet is used and
<fo> indicates that GSM 03.40 TP-User-Data-Header-Indication is not set:
if TE character set other than "HEX" (refer command Select TE Character Set
+CSCS in TS 07.07): ME/TA converts the entered text into GSM alphabet
according to rules of Annex A; backspace can be used to delete last
character and carriage returns can be used (previously mentioned four
character sequence shall be sent to the TE after every carriage return
entered by the user);
if TE character set is "HEX": the entered text should consist of two IRA
character long hexadecimal numbers which ME/TA converts to 7-bit
characters of GSM alphabet (e.g. 17 (IRA 49 and 55) will be converted to
character Π (GSM 23));
if <dcs> indicates that 8-bit or UCS2 data coding scheme is used or <fo> indicates
that GSM 03.40 TP-User-Data-Header-Indication is set: the entered text should
consist of two IRA character long hexadecimal numbers which ME/TA converts
into 8-bit octet (e.g. two characters 2A (IRA 50 and 65) will be converted to an
octet with integer value 42);
sending can be cancelled by giving <ESC> character (IRA 27)
<ctrl-Z> (IRA 26) must be used to indicate the ending of the message body
<fo>
Description
0
1
2
3
First octet of SMS-DELIVER in integer format
First octet of SMS_SUBMIT in integer format
First octet of SMS-STATUS-REPORT in integer format
First octet of SMS-COMMAND in integer format
<mr>
Description
Integer
GSM 03.40 TP-Message-Reference
<ra>
Description
String
GSM 03.40 TP-Recipient-Address-Value field. BCD (or GSM
default alphabet) are converted to characters of the
currently selected TE character set (refef command
+CSCS. Type of address given by <tosca>
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<dt>
Description
String
GSM 03.40 TP-Discharge-Time in string format "yy/MM/
dd,hh:mm:ss+-zz where characters indicate year, month,
day, hour,minutes, seconds and time zone
<st>
Description
Integer
GSM 03.40 TP-Status
<ct>
Description
Integer
GSM 03.40 TP-Command-Type (default 0)
<sn>
Description
Integer
GSM 03.41 CBM Serial Number
<mid>
Description
String type
All different possible combinations of CBM message
identifiers (refer <mid>) (default is empty string);
e.g. "0,1,5-7"
<mid> GSM 03.41 CBM Message Identifier in integer
format
<page>
Description
Integer format GSM 03.41 CBM Page Parameter bits 4-7 in integer format
<pages>
Description
Integer format GSM 03.41 CBM Page Parameter bits 0-3 in integer format
Example
AT+CMGF=1
OK
AT+CMGL=?
+CMGL: “REC UNREAD”,“REC READ”,“STO UNSENT”,“STO
SENT”,“ALL”
OK
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15.13 AT+CMGD Delete Message
Common for both PDU and Text modes
Description
Command
Possible Responses
Delete message
AT+CMGD=<index>
• +CMS ERROR: <err>
• OK
• ERROR
Show if the command
is supported
AT+CMGD=?
• OK
• ERROR
Deletes message from preferred message storage <mem1> location
<index>. If deleting fails, final result code +CMS ERROR: <err> is
returned. Test command shows the valid memory locations.
<index>
Description
Integer type
Value in the range of location numbers supported by the
associated memory
15.14 AT+CSDH Show Text Mode Parameters
Only Applicable to Text Mode
Description
Command
Possible Responses
Set the show text
mode
AT+CSDH=[<show>]
• +CME ERROR: <err>
• OK
Show the current
setting
AT+CSDH?
• +CSDH: <show>
• +CME ERROR: <err>
Show if the command
is supported
AT+CSDH=?
• +CSDH: (list of
supported <show>s)
• OK
• +CME ERROR: <err>
Controls whether detailed header information is shown in text mode
result codes.
<show>
Description
0
Do not show header values defined in commands
AT+CSCA and AT+CSMP (<sca>, <tosca>, <fo>, <vp>,
<pid> and <dcs>) nor <length>, <toda> or <tooa> in
+CMT, +CMGL, +CMGR result codes for SMS-DELIVERs and
SMS-SUBMITs in text mode; for SMS-COMMANDs in +CMGR
result code, do not show <pid>, <mn>, <da>, <toda>,
<length> or <cdata>
1
Show the values in result codes
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15.15 AT+CSMP Set Text Mode Parameters
Only Applicable to Text Mode
Description
Command
Possible Responses
Set the text mode
parameters
AT+CSMP=[<fo
> [,<vp>[,<pid>
[,<dcs>]]]]
• +CME ERROR: <err>
• OK
• ERROR
Show the current
setting
AT+CSMP?
• +CSMP: <fo>,<vp>,<pid>,<dcs>
• +CME ERROR: <err>
Show if the
command is
supported
AT+CSMP=?
• +CSMP: (List of supported <fo>s),
(list of supported <vp>s), (list of
supported <pid>s), (list of
supported <dcs>s)
• +CME ERROR: <err>
• OK
• ERROR
Used to select values for additional parameters needed when SM is sent
to the network or placed in a storage when text format message mode is
selected. It is possible to set the validity period starting from when the
SM is received by the SMSC (<vp> is in range 0… 255). The <pid>
parameter identifies the higher protocol being used or indicates
interworking with a certain type of telematic service and <dcs>
determines the way the information is encoded as in GSM 03.38.
<fo>
Description
0-255
Depending on the command or result code: first octet of
GSM 03.40 SMS-DELIVER, SMS-SUBMIT (default value
17),SMS-STATUS-REPORT, or SMS-COMMAND (default value
2) in integer format
<vp>
Description
0-143
(TP-VP+1) x 5 minutes (i.e 5 minutes intervals up to 12 hous)
12 hours + ((TP_VP-143) x 30 minutes)
(TP-VP-166) x 1 day
144-167
168-196
197-255
(TP-VP-192) x 1 week
<pid>
Description
0-255
Protocol Identifier in integer format. Default value is 0,
according to 07.05 section 9.2.3.9
<dcs>
Description
0-255
Data coding scheme. See GSM 03.38. UCS2 and
compressed text not supported
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15.16 AT+CSCS Select Character Set
Description
Command
Possible Responses
Set command informs
TA which character set
is used by the TE
AT+CSCS=<chset>
• OK
• ERROR
Show the current
setting
AT+CSCS?
• +CSCS: <chset>
• OK
• ERROR
Show if the command
is supported
AT+CSCS=?
• +CSCS: (list of
supported <chset>s)
• OK
• ERROR
This command informs the TA which character set <chset> is used by
the TE. The TA is then able to convert character strings correctly
between TE and ME character sets.
When TA-TE interface is set to 8-bit operation and the used TE alphabet
is 7-bit, the highest bit shall be set to zero.
Note!
How the internal alphabet of ME is converted to, or from, the TE
alphabet is manufacturer specific.
Read command shows current setting and test command display
conversion schemes implemented in the TA.
<chset>
Description
“GSM”
GSM default alphabet (GSM 03.38 subclause 6.2.1).
Default value
“IRA”
International reference alphabet (ITU-T T.50). Note:
recommended default value by GSM 07.07.
“8859-n”
“UTF-8”
ISO 8859 Latin n (1-6) character set
Universal text format, 8 bits
“ERICSSON”
Unicode, 16-bit universal multiple-octet coded character
set (ISO/IEC10646)
Example
AT+CSCS?
+CSCS: “GSM”
OK
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15.17 AT+CSMS Select Message Service
Common for both PDU and Text Modes
Description
Command
Possible Responses
Select message
service
AT+CSMS=<service>
• +CSMS:
<mt>,<mo>,<bm>
• +CMS ERROR: <err>
• OK
• ERROR
Show the current
setting
AT+CSMS?
• +CSMS:
<service>,<mt>,<mo>,
<bm>
• OK
• ERROR
Show if the
command is
supported
AT+CSMS=?
• +CSMS: (list of
supported <service>s)
• OK
• ERROR
Selects messaging service <service>. It returns the types of messages
supported by the ME: <mt> for mobile terminated messages, <mo> for
mobile originated messages and <bm> for broadcast type messages. If
the chosen service is not supported by the ME (but is supported by the
TA), final result code +CMS ERROR: <err> is returned.
<service>
Description
0
GSM 03.40 and 03.41. The syntax of SMS AT commands is
compatible with GSM 07.05 Phase 2 version 4.7.0; Phase 2+
features which do not require new command syntax may
be supported (e.g. correct routing of messages with new
Phase 2+ data coding schemes)
2..127
Reserved
<mt>
Description
0
1
Mobile terminated messages not supported
Mobile terminated messages supported
<mo>
Description
0
1
Mobile originated messages not supported
Mobile originated messages supported
<bm>
Description
0
1
Broadcast messages not supported
Broadcast messages supported
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<err>
Description
0...127
GSM 04.11 Annex E-2 values
128...255
300
GSM 03.40 subclause 9.2.3.22 values
ME failure
302
Operation not allowed
Invalid PDU mode parameter
SIM not inserted
304
310
311
SIM PIN required
312
PH-SIM PIN required
SIM failure
313
314
SIM busy
315
SIM wrong
316
SIM PUK required
317
SIM PIN2 required
318
SIM PUK2 required
Unknown error
500
...511
512...
Other values in range 256...511 are reserved
Manufacturer specific
15.18 AT*E2SMSRIRing indicator for SMS
Description
Command
Possible Responses
Enable RI for incoming
SMS
AT*E2SMSRI=<n>
AT*E2SMSRI=?
• OK
• ERROR
Show the current
setting
• *E2SMSRI: <n>
• OK
• ERROR
Show if the command
is supported
AT*E2SMSRI=?
• *E2SMSRI: (list of
supported <n>s)
• OK
• ERROR
This command enables/disables the Ring Indicator pin response to an
incoming SMS message. If enabled, a negative going pulse is generated
on receipt of an incoming SMS message. The duration of this pulse is
selectable in steps of 50ms up to a maximum of 1,150ms and is
determined by the value of <n> that is used in the command. The
command is disabled by setting <n> to 0.
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Note!
The Ring Indicator will always be active for incoming calls independent
of this setting.
<n>
Description
0
RI is disabled for incoming SMS messages. Default value
50-1150
RI is enabled for incoming SMS messages. Pulse duration
selectable between 50 and 1,150ms inclusive
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16. Short Message Services - Cell Broadcast
16.1 AT+CNMI New Message Indications to TE
16.2 AT+CSCB Select Cell Broadcast Message Type
Common for both PDU and text modes
Description
Command
Possible Responses
Select cell broadcast
message type
AT+CSCB=[<mode>
[,<mids>]]
• +CMS ERROR: <err>
• OK
• ERROR
Show the current
setting
AT+CSCB?
• +CSCB:
<mode>,<mids>
• OK
• ERROR
Show if the command
is supported
AT+CSCB=?
• +CSCB: (list of
supported
<mode>s)
• OK
• ERROR
Selects which types of CBMs are to be received by the ME.
<mode>
Description
0
Message types in <mids> and <dcss> are accepted
<mids>
Description
string type
All different possible combinations of CBM message
identifiers (refer <mid>) (default is empty string);
e.g. “0,1,5-7”
<mid> GSM 03.41 CBM Message Identifier in integer
format
Example
AT+CSCB?
+CSCB: 0,“50”
OK
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17. SIM Application Toolkit
17.1 AT+CPIN
PIN Control
17.2 AT*E2STKS SIM Application Toolkit Settings
Description
Command
Possible responses
Set the presentation of
the unsolicited result
codes corresponding to
STK
AT*E2STKS=<on_off>
• +CME ERROR <err>
• OK
• ERROR
Show the current setting
AT*E2STKS?
• *E2STKS: <on_off>
• +CME ERROR <err>
• OK
• ERROR
Show if the command is
supported
AT*E2STKS=?
• *E2STKD: list of
supported <on_off>
• +CME ERROR <err>
• OK
• ERROR
Allows the external application to disable or enable the presentation of
the unsolicited result codes corresponding to the STK commands.
Parameter <on_off> is used to disable or enable the presentation of an
unsolicited result code *E2STK. Setting chosen is stored internally so
that it is not necessary to change it each time the ME is switched on.
If the presentation of the unsolicited result codes is disabled, the
messages below are not sent to the application.
The unsolicited result codes shall be disabled by default.
<on_off>
Description
0
Disable the presentation of the unsolicited result codes
related to STK. Default value
1
Enable the presentation of the unsolicited result codes
related to STK
Unsolicited Result Codes:
The unsolicited result codes defined in sections below can be received.
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17.3 AT*E2STKD M2M STK Display Text
Description
Command
Possible responses
Answer to the
reception of
DISPLAY TEXT
AT*E2STKD=<answer> • +CME ERROR <err>
• OK
• ERROR
Show if the
command is
supported
AT*E2STKD=?
• *E2STKD:
(list of supported <answer>)
• +CME ERROR <err>
• OK
• ERROR
The ME passes the parameters within DISPLAY TEXT command to
the external application by means of the unsolicited result code
*E2STKD.
Command AT*E2STKD allows the external application to send the
appropriate answer after receiving the unsolicited result code, and
before the timeout expires.
If Answer command is sent once the timeout expires, an ERROR
response is generated.
Test command returns the list of supported <answer>. Values follow
GSM 11.14 standard
<answer>
Description
0
OK.
Performed as required: the text was displayed and
cleared as requested. It corresponds to ‘00’ Command
performed successfully, described in the GSM standard
1
2
3
4
Failed.
User Terminated Session: the text was displayed as
requested and the user wants to end the proactive
session. It corresponds to ‘10’ Proactive session terminated
by the user, described in the GSM standard
Failed.
User requests backwards move: the text was displayed as
requested and the user wants to go backwards in the
session. It corresponds to ‘11’ Backward move in the
proactive SIM session requested by the user
Failed.
No response from user: the text was displayed, and
although the clear condition was “Wait for user to clear”,
the user did not react. It corresponds to ‘12’ no response
from user
Failed.
Screen is busy: the text could not be displayed
Unsolicited Result Codes:
*E2STKD: <priority>,<clear_condition>,<coding>,<text_length>,
<text>
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Values follow GSM 11.14 standard.
<priority>
Description
0
1
Display normal priority text
Display high priority text
<clear_condition>
Description
0
1
Clear message after a dalay
Wait for user to clear message
<coding>
Description
0
Text is coded in unpacked format, using the SMS default 7-
bit coded alphabet, as defined in GSM 03.38 with bit 8 set
to 0. It corresponds to data coding scheme of 8 bit
1
Text is coded in packed format, using the SMS default 7-bit
coded alphabet, packed in 8-bit octets, as defined in
GSM 03.38. It corresponds to data coding scheme of 7 bit
GSM default alphabet
<text_length>
Description
Integter type
Value indicating the maximum length of field <text>
<text>
Description
string type
Field of maximum length <text_length>, in string type
format between "". Coding is defined in <coding>
17.4 AT*E2STKG M2M STK Get Inkey
Description
Command
Possible responses
Answer to the
reception of
GET INKEY
AT*E2STKG=<answer>, • +CME ERROR <err>
[<response_type>,
<user_response>]
• OK
Show if the
command is
supported
AT*E2STKG=?
• *E2STKG:
(list of supported <answer>),
(list of supported
<response_type>),
<user_response>
• +CME ERROR <err>
• OK
• ERROR
The ME passes the parameters within GET INKEY command to the
external application by means of the unsolicited result code E2STKG.
The external application then sends AT*E2STKG with the user
response.
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Answer command allows the external application to send the
appropriate answer, after receiving the unsolicited result code, and
before the timeout expires.
If Answer command is sent once the timeout expires, an ERROR
response is generated.
If <answer> parameter is not 0, a failure has occurred and no more
parameters are sent. If the extra parameters are sent, the ME indicates
ERROR.
Test command returns the list of supported values, and the maximum
value of <prompt_text_length>.
Values follow GSM 11.14 standard.
<answer>
Description
0
OK.
Performed as required: the text was displayed. It
corresponds to ‘00’ Command performed successfully,
described in the GSM standard
1
2
3
Failed.
User Terminated Session: the text was displayed as
requested and the user wants to end the proactive
session. It corresponds to ‘10’ Proactive session
terminated by the user, described in the GSM standard
Failed.
User requests backward move: the text was displayed
as requested and the user wants to go backwards in
the session. It corresponds to ‘11’ Backward move in
the proactive SIM session requested by the user
Failed.
No response from user: the text was displayed, and the
user did not react. It corresponds to ‘12’ No response
from user
4
Failed.
Screen is busy: the text could not be displayed
<response_type>
Description
0
1
3
Response type shall be digits (0-9, *, # and +)
Response type shall be SMS default alphabet
Response type shall be “Yes/No” response
<user_response>
Description
String type
Field of 1 to 2 bytes length in string type format
between “”. Coding is defined in <response_type>.
Length shall be 2 bytes when coding is UCS2 .
Otherwise it shall be 1 byte
Unsolicited Result Codes:
*E2STKG: <coding>,<prompt_text_length>,<prompt_text>
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Values follow GSM 11.14 standard.
<coding>
Description
0
Text is coded in unpacked format, using the SMS
default 7-bit coded alphabet, as defined in GSM 03.38
with bit 8 set to 0. It corresponds to data coding
scheme of 8 bit
1
Text is coded in packed format, using the SMS default
7-bit coded alphabet, packed in 8-bit octets, as
defined in GSM 03.38. It corresponds to data coding
scheme of 7 bit GSM default alphabet
<prompt_text_length>
Description
Integer type (0-235)
Value indicating the maximum length of field
<prompt_text>
<prompt_text>
Description
String type
Field of maximum length <prompt_text_length>, in
string type format between “”. Coding is defined in
<prompt_coding>.
17.5 AT*E2STKI M2M STK Get Input
Description
Command
Possible responses
Answer to the
reception of GET
INPUT
AT*E2STKI=<answer>, • +CME ERROR <err>
[<response_type>,
<response_length>,
<user_response>]
• OK
• ERROR
Show if the
command is
supported
AT*E2STKI=?
• *E2STKI: (list of supported
<answer>),(list of supported
<response_type>),
<response_length>,
<user_response>
• +CME ERROR <err>
• OK
• ERROR
The ME passes the parameters within GET INPUT command to the
external application by means of the unsolicited result code E2STKI.
The external application sends AT*E2STKI with the user response.
AT*E2STKI allows the external application to send the appropriate
answer after receiving the unsolicited result code, and before the
timeout expires.
If Answer command is sent once the timeout expires, an ERROR
response is generated.
If <answer> parameter is not 0, a failure has occurred and no more
parameters are sent. If the extra parameters are sent, the ME indicates
ERROR.
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Test command returns the list of suported values, and
<prompt_text_length>.
Values follow GSM 11.14 standard.
<answer>
Description
0
OK.
Performed as required: the text was displayed. It corresponds
to ‘00’ command performed succesfully, described in the GSM
standard
1
2
Failed.
User terminated session: the text was displayed as requested
and the user wants to end the proactive session. It corresponds
to ‘10’ proactive session terminated by the user, described in
the GSM standard
Failed.
User requests backward move: the text was displayed as
requested and the user wants to go backwards in the session.
It corresponds to ‘11’ backward move in the proactive SIM
session requested by the user
3
4
Failed.
No response from user: the text was displayed, and the user
did not react. It corresponds to ‘12’ No response from user
Failed.
Screen is busy: the text could not be displayed
<response_type>
Description
0
1
3
Response type shall be digits (0-9, *, # and +)
Response type shall be SMS default alphabet
Response type shall be “Yes/No” response
<response_length>
Description
Integer type (0-160)
Value indicating the length of response field
<user_response>. It shall be an integer within the
range between <min_length_response> and
<max_length_response>
<user_response>
Description
String type
Field of length between <min_length_response> and
<max_length_response>, in string type format between
"". Coding is defined in <response_type>.
Note!
If <response_type>=3 (Yes/No), the length of <user_response> is
1 byte. Otherwise, the ME gives an ERROR message.
Unsolicited Result Codes:
*E2STKI: <min_length_response>,<max_length_response>,
<echo_input>,<prompt_coding>,<prompt_text_length>,
<prompt_text>
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Values follow GSM 11.14 standard.
<min_length_response>
Description
Integer type (0-160)
Value indicating the minimum length of
response field <user_response>
<max_length_response> Description
Integer type (0-160)
Value indicating the maximum length of
response field <user_response>
<echo_input>
Description
0
1
The user input shall be echoed
The user input shall be hidden
<prompt_coding>
Description
0
Text is coded in unpacked format, using the SMS
default 7-bit coded alphabet, as defined in
GSM 03.38 with bit 8 set to 0. It corresponds to
data coding scheme of 8 bit
1
2
Text is coded in packed format, using the SMS
default 7-bit coded alphabet, packed in 8-bit
octets, as defined in GSM 03.38. It corresponds
to data coding scheme of 7 bit GSM default
alphabet
Text is coded in UCS2 alphabet, as defined in
GSM 03.38. It corresponds to data coding
scheme of 16 bit UCS2 alphabet
<prompt_text_length>
Description
Integer type
Value indicating the maximum length of field
<prompt_text>
<prompt_text>
Description
String type
Field of maximum length <prompt_text_length>,
in string type between “”. Coding is defined in
<prompt_coding>
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17.6 AT*E2STKL M2M STK Select Item
Description
Command
Possible responses
Answer to the
reception of
SELECT ITEM
AT*E2STKL=<answer>, • +CME ERROR <err>
[<user_response>]
AT*E2STKL=?
• OK
• ERROR
Show if the
command is
supported
• *E2STKL: (list of supported
<answer>),
(list of supported
<user_response>)
• +CME ERROR <err>
• OK
• ERROR
The ME passes the parameters within SELECT ITEM command to the
external application by means of the unsolicited result code *E2STKL.
Command AT*E2STKL allows the external application to send the
appropriate answer after receiving the unsolicited result code, and
before the timeout expires.
If Answer command is sent once the timeout expires, an ERROR
response is be generated.
If <answer> parameter is not 0, a failure has occurred and no more
parameters are sent. If the extra parameters are sent, the ME indicates
ERROR.
Values follow GSM 11.14 standard.
<answer>
Description
0
OK.
Performed as required. It corresponds to ‘00’ command
performed succesfully, described in the GSM standard
1
2
Failed.
User terminated session. It corresponds to ‘10’ Proactive
session terminated by the user, described in the GSM
standard
Failed.
User requests backwards move. It corresponds to ‘11’
Backward move in the proactive SIM session requested
by the user
3
4
Failed.
No response from user. It corresponds to ‘12’ no
response from user
Failed.
Screen is busy: the text could not be displayed
<user_response> Description
integer type
The identifier is a single byte between 1 and 255. It
identifies the selected <item_idn> within the items list
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Unsolicited Result Codes:
E2STKL: <NbrOfItems>,<coding>,<text_length>,<alpha_id>
[,<default>]<CR><LF>E2STKL: <item_id1>,<coding>,
<text_length>,<item1><CR><LF>[…]E2STKL: <item_idn>,
<coding>,<text_length>,<itemn><CR><LF>]
Values follow GSM 11.14 standard.
<coding>
Description
0
Text is coded in unpacked format, using the SMS default
7-bit coded alphabet, as defined in GSM 03.38 with bit 8
set to 0. It corresponds to data coding scheme of 8 bit
1
Text is coded in packed format, using the SMS default 7-
bit coded alphabet, packed in 8-bit octets, as defined
in GSM 03.38. It corresponds to data coding scheme of
7 bit GSM default alphabet
<text_length>
Description
Integer type
(0-240)
Value indicating the maximum length of field
<alpha_id>, <itemn1>,.<Itemn>
<alpha_id>
Description
String type
Field of string type between “”. Coding is according to
AND
EF
as defined in GSM 11.11
The maximum length is fixed
<default>
Description
Integer type
The <default> parameter is a single byte between 1 and
255. It shows the default/selected item within the list
<item_idn>
Description
Integer type
The identifier is a single byte between 1 and 255. Each
item <itemn> in the list shall have a unique identifer
<item_idn>
<itemn>
Description
String type
Field of string type between “”. Coding is according to
AND
EF
as defined in GSM 11.11
<NbrOfItems>
Description
Integer type
Number of items to be presented in the following
unsolicited results
The maximum length is fixed.
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17.7 AT*E2STKM M2M STK Set Up Menu
Description
Command
Possible responses
Answer to the
reception of SET
UP MENU
AT*E2STKM=<answer>,
<on_off>
• +CME ERROR <err>
• OK
• ERROR
Show if the
command is
supported
AT*E2STKM=?
• *E2STKM: (list of supported
<answer>),(list of supported
<on_off>)
• +CME ERROR <err>
• OK
• ERROR
The ME passes the parameters within SET UP MENU command to the
external application, so that the STK menu can be built externally, by
means of the unsolicited result code *E2STKM.
The current menu can be removed by sending only the parameter
<on_off> = 0.
Answer command allows the external application to send the
appropriate answer after receiving the unsolicited result code, and
before the timeout expires.
If Answer command is sent once the timeout expires, an ERROR
response is generated.
Values follow GSM 11.14 standard.
<answer>
Description
0
OK.
Performed as required: it corresponds to ‘00’ command
performed successfully, described in the GSM standard
1
2
3
Failed.
User Terminated Session: the command was executed as
requested and the user wants to end the proactive
session. It corresponds to ‘10’ proactive session terminated
by the user, described in the GSM standard
Failed.
User requests backwards move: the command was
executed as requested and the user wants to go
backwards in the session. It corresponds to ‘11’ backward
move in the proactive SIM session requested by the user
Failed.
No response from user: the command was executed, and
the user did not react. It corresponds to ‘12’ no response
from user
4
5
Failed.
Screen is busy
Failed.
Command beyond MEs capability. It corresponds to ‘30’.
It was not possible to successfully integrate or remove the
list of menu items
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<on_off>
Description
0
1
Remove the current menu
New menu to be displayed
Unsolicited Result Codes:
*E2STKM: <NbrOfItems>,<coding>,<text_length>,
<alpha_id><CR><LF>E2STKM: <item_id1>,<coding>,
<text_length>,<item1>[<CR><LF>[…]E2STKM: <item_idn>,
<coding>,<text_length>,<itemn>]
Values follow GSM 11.14 standard.
<coding>
Description
0
Text is coded in unpacked format, using the SMS default 7-
bit coded alphabet, as defined in GSM 03.38 with bit 8 set
to 0. It corresponds to data coding scheme of 8 bit
1
Text is coded in packed format, using the SMS default 7-bit
coded alphabet, packed in 8-bit octets, as defined in
GSM 03.38. It corresponds to data coding scheme of 7 bit
GSM default alphabet
<text_length>
Description
Integer type
Value indicating the maximum length of field <alpha_id>,
<itemn1>, <Itemn>
<alpha_id>
Description
String type
Field of string type between "". Coding is according to
AND
EF
as defined in GSM 11.11
The maximum length is fixed.
<item_idn>
Description
Integer type
The identifier is a single byte between 1 and 255. Each
item <itemn> in the list shall have a unique identifer
<item_idn>
<itemn>
Description
String type
Field of string type format between “”. Coding is
according to EF
as defined in GSM 11.11
AND
<NbrOfltems>
Description
Integer type
Number of Items to be presented in the following
unsolicited results
The maximum length is fixed.
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The parameters have no default values.
17.8 AT*E2STKN M2M STK Envelope (Menu Selection)
Description
Command
Possible responses
Do the menu
selection
AT*E2STKN=<sel_item>
• +CME ERROR <err>
• OK
• ERROR
Show if the
command is
supported
AT*E2STKN=?
• *E2STKN: (list of supported
<sel_item>)
• +CME ERROR <err>
• OK
• ERROR
The application informs the ME about the selected menu item by means
of the AT*E2SKTN command. The ME answers with OK, or ERROR.
The Do command allows the external application to select the menu
item in the item list that was created by means of the SET-UP MENU
command.
<sel_item>
Description
Integer type
The identifier is a single byte between 1 and 255. It
identifies the selected menu item corresponding to SET-UP
MENU command. Values follow the definition described in
GSM 11.14
17.9 AT*E2STKC M2M STK Set Up Call
Description
Command
Possible responses
Answer to the
reception of SET UP
CALL
AT*E2STKC=<answer> • +CME ERROR <err>
• OK
• ERROR
Show if the
command is
supported
AT*E2STKC=?
• *E2STKC: (list of supported
<answer>)
• +CME ERROR <err>
• OK
• ERROR
The ME passes the parameters within SET UP CALL command to the
external application by means of the unsolicited result code *E2STKC,
so that it takes up the decision on progressing or rejecting the call.
Answer command allows the external application to send the
appropriate answer after receiving the unsolicited result code, and
before the timeout expires.
If Answer command is sent once the timeout expires, an ERROR
response is generated.
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Values follow GSM 11.14 standard.
<answer>
Description
0
OK.
Performed as required. It corresponds to ‘00’ command
performed succesfully, described in the GSM standard
1
2
3
Failed.
User terminated session. It corresponds to ‘10’ Proactive
session terminated by the user, described in the GSM
standard
Failed.
User requests backwards move. It corresponds to ‘11’
backward move in the proactive SIM session requested by
the user
Failed.
No response from user. It corresponds to ‘12’ no response
from user
4
6
7
Failed.
Screen is busy: the text could not be displayed
Failed.
User rejected call set-up request. It corresponds to ‘22’
Failed.
User cleared down call before connection or network
release. It corresponds to ‘23’
Unsolicited Result Codes:
*E2STKC: <ton>,<dial_string>,<SetUpRequirement>,<coding>,
<text_length>,<alpha_id>
Values follow GSM 11.14 standard.
<ton>
Description
Integer type
Field of 1 byte indicating the Type of Number, coded as
for EF
. See GSM 04-08, section 10.5.4.7 for the allowed
AND
values
<dial_string>
Description
String type
Phone number of format <ton>
<coding>
Description
0
Text is coded in unpacked format, using the SMS default 7-
bit coded alphabet, as defined in GSM 03.38 with bit 8 set
to 0. It corresponds to data coding scheme of 8 bit
1
Text is coded in packed format, using the SMS default 7-bit
coded alphabet, packed in 8-bit octets, as defined in
GSM 03.38. It corresponds to data coding scheme of 7 bit
GSM default alphabet
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<text_length>
Integer type (0-240)
Description
Value indicating the maximum length of field
<alpha_id>
<alpha_id>
Description
String type
Field of string type between “”. Coding is according to
AND
EF
as defined in GSM 11.11
The maximum length is fixed
17.10 *E2STKE
STK Send Short Message
Unsolicited Result Code:
*E2STKE: <coding>, < text_length >, <alpha_id>
The ME passes the <alpha_id> within SEND SHORT MESSAGE
command to the external application, by means of the unsolicited result
code *E2STKE. This informs the external application that the ME is
sending an SMS.
<coding>
Description
0
Text is coded in unpacked format, using the SMS default 7-bit
coded alphabet, as defined in GSM 03.38 with bit 8 set to 0. It
corresponds to data coding scheme of 8 bit
1
Text is coded in packed format, using the SMS default 7-bit
coded alphabet, packed in 8-bit octets, as defined in GSM
03.38. It corresponds to data coding scheme of 7 bit GSM
default alphabet
<text_length>
Description
Integer type (0-240)
Value indicating the maximum length of field
<alpha_id>
<alpha_id>
Description
String type
Field of string type format between “”. Coding is
according to EF
as defined in GSM 11.11
AND
‘FF’
In case that the SIM does not provide the optional alpha
identifier, or this is a null data object, the ME shall give ‘FF’
to indicate “Sending SMS”, so that the external
application is informed
The maximum length is fixed.
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17.11 *E2STKP
STK Send SS
Unsolicited Result Code:
*E2STKP: <ton>, <SS_string>, <coding>, <text_length>, <alpha_id>,
<SS_return>
The ME passes the parameters within SEND SS command to the
external application, by means of the unsolicited result code *E2STKP.
This informs the external application that the ME has sent an SS string
to the network, and provides the current status after this operation.
<ton>
Description
integer type
Field of 1 byte indicating the Type of Number, coded as
for EF
. See GSM 04-08, section 10.5.4.7 for the allowed
AND
values
<SS_string>
Description
String type
SS string of format <ton>
<coding>
Description
0
Text is coded in unpacked format, using the SMS default 7-
bit coded alphabet, as defined in GSM 03.38 with bit 8 set
to 0. It corresponds to data coding scheme of 8 bit
1
Text is coded in packed format, using the SMS default 7-bit
coded alphabet, packed in 8-bit octets, as defined in
GSM 03.38. It corresponds to data coding scheme of 7-bit
GSM default alphabet
<text_length>
Description
Integer type (0-240)
Value indicating the maximum length of field
<alpha_id>
<alpha_id>
Description
String type
Field of string type format between “”. Coding is
according to EF
as defined in GSM 11.11
AND
‘FF’
In case that the SIM does not provide the optional alpha
identifier, or this is a null data object, the ME shall give ‘FF’
to indicate “SS string sent” so that the external application
is informed
The maximum length is fixed.
<SS_return>
Description
Integer type
Field of 1 byte indicating the SS Return Result Operation
code, as defined in GSM 04.80, so that the external
application is informed about the result of the SS
operation
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17.12 *E2STKU
STK Send USSD
Unsolicited Result Code:
*E2STKU: <coding>, <text_length>, <alpha_id>
Description:
The ME shall passes the <alpha_id> parameter within SEND USSD
command to the external application, by means of the unsolicited result
code *E2STKU. This informs the external application that the ME is
sending a USSD string to the network.
<coding>
Description
0
Text is coded in unpacked format, using the SMS default 7-
bit coded alphabet, as defined in GSM 03.38 with bit 8 set
to 0. It corresponds to data coding scheme of 8 bit
1
Text is coded in packed format, using the SMS default 7-bit
coded alphabet, packed in 8-bit octets, as defined in
GSM 03.38. It corresponds to data coding scheme of 7-bit
GSM default alphabet
<text_length>
Description
Integer type (0-240)
Value indicating the maximum length of field
<alpha_id>
<alpha_id>
Description
String type
Field of string type format between “”. Coding is
according to EF
as defined in GSM 11.11
AND
‘FF’
In case that the SIM does not provide the optional alpha
identifier, or this is a null data object, the ME shall give ‘FF’
to indicate “SS string sent” so that the external application
is informed
The maximum length is fixed.
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17.13 *E2STKR
STK Refresh
Unsolicited Result Code:
*E2STKR: <indicator>
The ME informs the external application about the coming REFRESH
command, by means of the unsolicited result code *E2STKR (eg Reset
is coming).
<indicator>
Description
Integer type
Indicator describes the mode that the SIM has requested
when sending a REFRESH command
0
1
2
3
4
SIM initialization and full file change notification
File change notification
SIM initialization and file change notification
SIM initialization
SIM reset
17.14 AT*E2STKTO
SIM Application Toolkit Settings
Parameter Command Syntax:
AT*E2STKTO = <Command>, <timer>
This command allows the external application to configure some
general settings related to STK.
Defined values:
Parameter <Command> is used to define the command that the time
parameter is going to be applied.
Parameter <timer> is used to fix the timeout period applicable to
Proactive SIM mechanism.
<Command>
Description
Integer type (0-6)
It defines the command that the time parameter is
going to be applied
0
1
All the commands with timeout associated are set
to the value of <timer>
Set Up Menu command timeout is set to the value
of <timer>
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<Command>
Description
2
3
4
5
Set Up Call command timeout is set to the value of
<timer>
Display Text command timeout is set to the value of
<timer>
Get Input command timeout is set to the value of
<timer>
Select Item command timeout is set to the value of
<timer>
<timer>
Description
Integer type (0-99)
Specifies the value in seconds to be set in the
timeout associated with the command specified in
<command>
0
All the commands timeouts are set to its default
value
(1-99)
The timeout of the command specified in
<command> is set to this value
Unsolicited result code:
*E2STKTO: <command>
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18. Supplementary Services
18.1 AT+CPIN
PIN Control
18.2 AT+CACM Accumulated Call Meter
Description
Command
Possible Responses
Reset the ACM
(Accumulated Call
Meter) value on the
SIM
AT+CACM=[<passwd>] • +CME ERROR: <err>
• OK
• ERROR
Show the current
setting
AT+CACM?
• +CACM: <acm>
+CME ERROR: <err>
• OK
• ERROR
Show if the command
is supported
AT+CACM=?
• +CME ERROR: <err>
• OK
• ERROR
Resets the Advice of Charge related accumulated call meter value in
SIM file EF . ACM contains the total number of home units for both
ACM
the current and preceding calls. SIM PIN2 is usually required to reset
the value. If setting fails in an ME error, +CME ERROR: <err> is
returned. See “+CME ERROR (Mobile Equipment Error Code)”, page
Note!
This command must take into account what line is chosen with
AT*ELIN.
Read command returns the current value of ACM.
<passwd>
Description
String type
SIM-PIN2
<acm>
Description
String type
Accumulated call meter value similarly coded as <ccm>
under +CAOC
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18.3 AT+CAMM Accumulated Call Meter Maximum
Description
Command
Possible Responses
Set command sets the
Advice of Charge
related accumulated
call meter maximum
value in SIM file
AT+CAMM=[<acmmax> • +CME ERROR: <err>
[,<passwd>]]
AT+CAMM?
• OK
• ERROR
EF
ACMmax
Show the current
setting
• +CAMM:
<acmmax>
+CME ERROR: <err>
• OK
• ERROR
Show if the command
is supported
AT+CAMM=?
• +CME ERROR: <err>
• OK
• ERROR
Sets the Advice of Charge related accumulated call meter maximum
value in SIM file EF . ACMmax contains the maximum number
ACMmax
of home units allowed to be consumed by the subscriber. When ACM
(refer +CACM) reaches ACMmax calls are prohibited. SIM PIN2 is
usually required to set the value. If setting fails in an ME error, +CME
ERROR: <err> is returned.
Read command returns the current value of ACMmax.
<acmmax>
Description
String type
Accumulated call meter maximum value similarly coded
as <ccm> under +CAOC; value zero disables ACMmax
feature
<passwd>
Description
String type
SIM PIN2
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18. SUPPLEMENTARY SERVICES
18.4 AT+CAOC Advice of Charge
Description
Command
Possible Responses
Execute command
AT+CAOC[=<mode>]
• [+CAOC: <ccm>]
+CME ERROR: <err>
• OK
• ERROR
Show the current
setting
AT+CAOC?
• +CAOC: <mode>
• OK
• ERROR
Show if the command
is supported
AT+CAOC=?
• [+CAOC: (list of
supported
<mode>s]
• OK
• ERROR
Use of Advice of Charge supplementary service command enables the
subscriber to get information about the cost of calls. With <mode>=0,
the execute command returns the current call meter value from the ME.
The command also includes the possibility to enable an unsolicited
event reporting of the CCM information. The unsolicited result code
+CCCM: <ccm> is sent when the CCM value changes, but no more than
every 10 seconds. Deactivation of the unsolicited event reporting is
made with the same command.
Read command indicates whether the unsolicited reporting is activated
or not. Read command is available when the unsolicited result code is
supported.
It is recommended (although optional) that the test command return the
supported mode values.
<mode>
Description
0
1
2
Query CCM value
Deactivate the unsolicited reporting of CCM value
Activate the unsolicited reporting of CCM value
<ccm>
Description
String type
Three bytes of the current call meter value in hexadecimal
format (e.g. “00001E” indicates decimal value 30); value is
in home units and bytes are similarly coded as ACMmax
value in the SIM
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18.5 AT+CPUC Price Per Unit and Currency Table
Description
Command
Possible Responses
Set command sets the
parameters of Advice
of Charge related
AT+CPUC=<currency>,
<ppu>[,<passwd>]
• +CME ERROR: <err>
• OK
• ERROR
price per unit and
currency table in SIM
file EF
PUCT
Show the current
setting
AT+CPUC?
• +CPUC:
<currency>,<ppu>
+CME ERROR: <err>
• OK
• ERROR
Show if the command
is supported
AT+CPUC=?
• OK
• ERROR
Sets the parameters of Advice of Charge related price per unit and
currency table in SIM file EF . PUCT information can be used to
PUCT
convert the home units (as used in +CAOC, +CACM and +CAMM)
into currency units. SIM PIN1 or SIM PIN2 (depending on which SIM
card that is used) is required to set the parameters. If setting fails in an
ME error, +CME ERROR: <err> is returned.
Read command returns the current parameters of PUCT.
For information on the character set see AT+CSCS in the Short
Message Services section.
<currency>
Description
String
Alpha-identifier of the currency code (3 characters, e.g.
SEK)
<ppu>
Description
String type
price per unit; dot is used as a decimal separator (e.g.
“2.66”)
<passwd>
Description
String type
SIM PIN1 or SIM PIN2
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18. SUPPLEMENTARY SERVICES
18.6 AT*EDIF
Ericsson Divert Function
Description
Command
Possible Responses
Enable and disable
notification with the
unsolicited result code
*EDIF
AT*EDIF=<onoff>
• +CME ERROR: <err>
• OK
• ERROR
Show the current
setting
AT*EDIF?
• *EDIF: <onoff>
+CME ERROR: <err>
• OK
• ERROR
Show if the command
is supported
AT*EDIF=?
• *EDIF: (list of
supported <onoff>s)
• +CME ERROR: <err>
• OK
• ERROR
This command enables and disables notification of divert status changes
with the unsolicited result code *EDIF.
<onoff>
Description
0
1
Disable notification with the unsolicited result code *EDIF
Enable notification with the unsolicited result code *EDIF
Unsolicited Result Codes:
*EDIF: <reason>,<status>,<classx>[,<number>,<type>]
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18.7 AT*EIPS
Identity Presentation Set
Description
Command
Possible Responses
Sets the alpha tag to
be displayed in the ME
AT*EIPS=<ID>,
<alphatag mode>
• +CME ERROR: <err>
• OK
• ERROR
Show the current
setting
AT*EIPS?
• *EIPS: <ID1>,<alphatag
mode1><CR><LF>
*EIPS: <ID2>,<alphatag
mode2><CR><LF>
• +CME ERROR: <err>
• OK
• ERROR
Show if the command
is supported
AT*EIPS=?
• *EIPS: (list of supported
ID>s),(list of supported
<alphatag mode>s)
• +CME ERROR: <err>
• OK
• ERROR
This command enables or disables the presentation of the alpha tag of
the Caller ID and Called ID to the TE if the ID is recognized. The alpha
tag is the first name and the last name. The presentation is done by an
unsolicited result code, *ELIP for Caller ID and *EOLP for Called ID.
<ID>
Description
1
2
Caller ID (*ELIP)
Called ID (*EOLP)
<alphatag mode>
Description
0
1
Off
First name and last name displayed
Unsolicited Result Codes:
*ELIP:<alpha tag>
*EOLP:<alpha tag>
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18.8 AT*ELIN
Ericsson Line Set
Description
Command
Possible Responses
Set the current line to
<line>
AT*ELIN=<line>
• *ELIN: <line>
• +CME ERROR: <err>
• OK
• ERROR
Show the current
setting
AT*ELIN?
• *ELIN: <line>
• +CME ERROR: <err>
• OK
• ERROR
Show if the command
is supported
AT*ELIN=?
• *ELIN: list of
supported <line>s
+CME ERROR: <err>
• OK
• ERROR
This command requests the ME to set the current line to <line>.
Note!
The following command reads its value from the current line and is thus
affected by the use of *ELIN:
AT+CACM - Accumulated Call Meter
<line>
Description
1
2
L1
L2
18.9 AT*E2SSD M2M Supplementary Service Dispatch
Description
Command
Possible Responses
Send Supplementary
Service command
AT*E2SSD=<SS_String>
• OK
• ERROR
Show if the command
is supported
AT*E2SSD=?
• OK
• ERROR
This command allows the user to send a Public MMI command string
in order to activate, deactivate, interrogate or modify settings for
Supplementary Services.
Once a string is sent, the command will return OK if parsed and sent
successfully, otherwise ERROR is returned. The command does not
verify that the operation executes successfully - use the AT*E2SSI
command to gain feedback of the operation status.
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Refer to GSM 02.30 for Public MMI services and codes.
<SS_String>
Description
String Type
String in double quotes, containing a Public MMI
command to modify, activate, interrogate or deactivate
a Supplementary Service. String can contain values
‘0-9’, ‘*’ and ‘#’
18.10 AT*E2SSI M2M Supplementary Service Indications
Description
Command
Possible Responses
Set Supplementary
Service indications
AT*E2SSI=<op>
• ERROR
• OK
Show the current
setting
AT*E2SSI?
*E2SSI: <op>
Show if the command
is supported
AT*E2SSI=?
• *E2SSI: (list of
supported <op>s)
• ERROR
This command allows the user to display the unsolicited response code
*E2SSI on network responses (either command confirmation or error
responses) for Supplementary Services. This can be used in conjunction
with the AT+CSSN command which gives responses on the network
notification of SS status.
The default setting is OFF, where responses are disabled.
<op>
Description
0
1
Disable *E2SSI indications. Default value
Enable *E2SSI indications
Unsolicited Result codes:
*E2SSI: <errorcode>[,<Opcode>[,<SS_Code>,[<BasicServChoice>,
<BasicServValue>],[<SS_Status>],[<ForwardedToNr>],
[<NoReplyConditionTime>], [<CLI_RestrictionOption>]]]
or
*E2SSI: <errorcode>[,<Opcode>[,<SS_Code>,[<BasicServChoice>,
<BasicServValue>],[<SS_Status>],[<SubscriptionOption>]]]
<errorcode>
Description
0
1
2
3
OK (no error)
SSI_PASSWORD_ERROR
SSI_TOO_MANY_PARTS
SSI_COMMAND_ERROR
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<errorcode>
Description
4
SSI_SIM_ERROR
5
SSI_NUMBER_ERR
6
SSI_CALL_BARRED
SSI_NOT_AVAILABLE
SSI_UNSUCCESSFUL
SSI_NOT_ALLOWED
SSI_NETWORK_PROBLEM
7
8
9
10
<Opcode>
Description
10
11
12
13
14
REGISTER_SS
ERASE_SS
ACTIVATE_SS
DEACTIVATE_SS
INTERROGATE_SS
<SScode>
Description
0
ALL_SS
16
17
18
19
20
21
32
33
40
41
42
43
49
64
65
66
67
ALL_LINE_IDENTIFICATION_SERVICES
CALLING_LINE_IDENTIFICATION_PRESENTATION
CALLING_LINE_IDENTIFICATION_RESTRICTION
CONNECTED_LINE_IDENTIFICATION_PRESENTATION
CONNECTED_LINE_IDENTIFICATION_RESTRICTION
MALICIOUS_CALL_IDENTIFICATION
ALL_FORWARDING_SERVICES
CALL_FORWARDING_UNCONDITIONAL
ALL_CONDITIONAL_FORWARDING_SERVICES
CALL_FORWARDING_ON_MOBILE_SUBSCRIBER_BUSY
CALL_FORWARDING_ON_NO_REPLY
CALL_FORWARDING_ON_SUBSCRIBER_NOT_REACHABLE
EXPLICIT_CALL_TRANSFER
ALL_CALL_COMPLETION_SERVICES
CALL_WAITING
CALL_HOLD
COMPLETION_OF_CALL_TO_BUSY_SUBSCRIBER
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<SScode>
Description
81
MULTI_PARTY
112
113
114
144
145
146
147
148
ALL_CHARGING_SS
ADVICE_OF_CHARGE_INFORMATION
ADVICE_OF_CHARGE_CHARGING
ALL_BARRING_SERVICES
BARRING_OF_OUTGOING_CALLS
BARRING_OF_ALL_OUTGOING_CALLS
BARRING_OF_ALL_OUTGOING_INTERNATIONAL_CALLS
BARRING_OF_ALL_OG_INTERNATIONAL_NON_HPLMN_
DIRECTED_CALLS
153
154
155
BARRING_OF_INCOMING_CALLS
BARRING_OF_ALL_INCOMING_CALLS
BARRING_OF_ALL_IC_CALLS_WHEN_OUTSIDE_HPLMN
<BasicServChoice>
Description
2
3
BEARER_SERVICE
TELE_SERVICE
<BasicServValue>
Description
<TELE_SERVICE>
<BEARER_SERVICE>
0
TS_ALL_TELE_SERVICES
TS_SPEECH
BS_ALL_BEARER_SERVICES
BS_ALL_DATA_CDA_SERVICES
BS_DATA_CDA_300BPS
BS_DATA_CDA_1200BPS
BS_DATA_CDA_2400BPS
BS_DATA_CDA_4800BPS
BS_DATA_CDA_9600BPS
BS_ALL_DATA_CDS_SERVICES
BS_DATA_CDS_300BPS
16
17
18
20
21
22
24
25
26
28
29
30
32
TS_TELEPHONY
TS_EMERGENCY_CALLS
BS_DATA_CDS_1200BPS
BS_DATA_CDS_2400BPS
BS_DATA_CDS_4800BPS
BS_DATA_CDS_9600BPS
TS_ALL_SHORT_MESSAGE_SERVICES BS_ALL_PAD_ACCESS_CA_SERVICES
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<BasicServValue>
Description
<TELE_SERVICE>
<BEARER_SERVICE>
33
TS_SHORT_MESSAGE_MT_PP
TS_SHORT_MESSAGE_MO_PP
BS_PAD_ACCESS_CA_300BPS
34
BS_PAD_ACCESS_CA_1200BPS
BS_PAD_ACCESS_CA_1200_75BPS
BS_PAD_ACCESS_CA_2400BPS
BS_PAD_ACCESS_CA_4800BPS
BS_PAD_ACCESS_CA_9600BPS
BS_ALL_DATA_PDS_SERVICES
35
36
37
38
40
44
BS_DATA_PDS_2400BPS
45
BS_DATA_PDS_4800BPS
46
BS_DATA_PDS_9600BPS
48
BS_ALL_ALTERNATE_SPEECH_DATA_CDA
BS_ALL_ALTERNATE_SPEECH_DATA_CDS
BS_ALL_SPEECH_FOLLOWED_BY_DATA_CDA
BS_ALL_SPEECH_FOLLOWED_BY_DATA_CDS
BS_ALL_DATA_CIRCUIT_ASYNCHRONOUS
BS_ALL_DATA_CIRCUIT_SYNCHRONOUS
BS_ALL_ASYNCHRONOUS_SERVICES
56
64
TS_VIDEOTEX
TS_TELETEX
72
80
88
96
TS_ALL_FAX_SERVICES
97
TS_FAX_GROUP3_ALTER_SPEECH
TS_AUTOMATIC_FAX_GROUP3
TS_FAX_GROUP4
98
99
104
112
120
128
208
209
BS_ALL_SYNCHRONOUS_SERVICES
BS_12_KBIT_UNRESTRICTED_DIGITAL
TS_ALL_DATA_SERVICES
TS_ALL_TELESERVICES_EXCEPT_SMS
TS_AUXILIARY_SPEECH
TS_AUXILIARY_TELEPHONY
<SS_Status>
Description
0
1
2
NO_FLAG_SET
SS_STATUS_ACTIVE
SS_STATUS_REGISTERED
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<SS_Status>
Description
4
7
SS_STATUS_PROVISIONED
SS_STATUS_PRA
<ForwardedToNr>
Description
String
Phone number string in double quotes
<NoReplyConditionTime>
Description
0-65532
Integer value for time
<CLI_Restriction Option>
Description
0
1
2
PERMANENT
TEMPORARY_DEFAULT_RESTRICTED
TEMPORARY_DEFAULT_ALLOWED
<Subscription Option>
Description
1
2
5
OVERRIDE_CATEGORY
CLI_RESTRICTION_OPTION
RESTRICTION_PER_CALL
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18.11 AT+CCFC Call Forwarding number and Conditions
Description
Command
Possible Responses
Request
AT+CCFC=<reason> • +CME ERROR <err>
Calling
,<mode>[,<number
>[,<type>[,<class>
[,<satype>]]]]
• when <mode>=2 and
command successful:
+CCFC:
forwarding
number and
conditions
<status>,<class1>[,<number>,
<type>[,<satype>]][<CR><LF>
+CCFC:
<status>,<class2>[,<number>,
<type>[,<satype>
]][...]]
• OK
• ERROR
Show if the
command is
supported
AT+CCFC=?
• + CCFC: (list of supported
<reason>s)
• +CME ERROR <err>
• OK
• ERROR
This command allows control of the call forwarding supplementary
service. Registration, erasure, activation, deactivation, and status query
are supported. When querying the status of a network service
(<mode>=2) the response line for ‘not active’ case (<status>=0) should
be returned only if service is not active for any <class>.
<reason>
Description
0
1
2
3
4
5
Unconditional
Mobile busy
No reply
Not reachable
All call forwarding
All conditional call forwarding
<mode>
Description
0
1
2
3
4
Disable
Enable
Query status
Registration
Erasure
<number>
Description
string type
String type phone number of forwarding address in format
specified by <type>
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<type>
Description
integer format
129
Type of address octet
ISDN/telephony numbering plan, national/international
unknown. Default value if ‘+’ is not in <sca>
145
ISDN/telephony numbering plan, international number.
Default value if ‘+’ is in <sca>
161
ISDN/telephony numbering plan, national number
Other values
128 - 255
<satype>
Description
integer format
128
Type of subaddress octet
NSAP (X.213/ISO 8348 AD2), even number of address
signals
136
NSAP (X.213/ISO 8348 AD2), odd number of address
signals
160
User defined, even number of address signals
User defined, odd number of address signals
Other values reserved
168
128 - 255
<classx>
Description
integer
Sum of integers each representing a class of information.
Default value is 7
1
Voice L1
2
Data
4
Fax
8
Short message service
Data circuit sync
Data circuit async
Dedicated packet access
Dedicated PAD access
16
32
64
128
<status>
Description
0
1
Not active
Active
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18.12 AT+CCWA Call Waiting
Description
Command
Possible Responses
Request call
waiting
AT+CCWA=[<n>
[,<mode>
[,<class>]]]
• when<mode>=2 and
command successful:
+CCWA:<status>,<class1>[<CR>
<LF>
+CCWA: <status>,<class2>[…]]
+CME ERROR <err>
• OK
• ERROR
Show the
current setting
AT+CCWA?
• +CCWA: <n>
+CME ERROR <err>
• OK
• ERROR
Show if the
command is
supported
AT+CCWA=?
• +CCWA: (list of supported <n>s)
+CME ERROR <err>
• OK
• ERROR
This command allows control of the call waiting supplementary service
according to 3GPP TS 22.083. Activation, deactivation and status query
are supported. When querying the status of a network service
(<mode>=2) the response line for ‘not active’ case (<status>=0) should
be returned only if service is not active for any <class>. Parameter <n>
is used to disable or enable the presentation of an unsolicited result code
+CCWA: <number>,<type>,<class>,[<alpha>][,<CLI validity>] to the
TE when call waiting service is enabled. The command is abortable
when the network is interrogated.
The interaction of this command with other commands based on other
GSM/UMTS supplementary services is described in the GSM/UMTS
standards.
Test command returns values supported by the TA as a compound
value.
<n>
Description
0
1
Disable
Enable
<mode>
Description
0
1
2
Disable
Enable
Query status
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<classx>
Description
integer
Sum of integers each representing a class of information.
Default value is 7
1
Voice L1
2
Data
4
Fax
8
Short message service
Data circuit sync
Data circuit async
Dedicated packet access
Dedicated PAD access
16
32
64
128
<status>
Description
0
1
Not active
Active
<number>
Description
String type
String type phone number of forwarding address in format
specified by <type>
<type>
Description
Integer format Type of address octet in integer format (GSM 04.08
10.5.4.7)
<err>
Description
0
Phone failure
3
Operation not allowed
Operation not supported
Invalid index
4
21
30
31
100
No network service
Network timeout
Unknown
Unsolicited Result Codes:
+CCWA: <number>, <type>, <class>
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Example
AT+CCWA=?
+CCWA: (0-1)
OK
AT+CCWA?
+CCWA: 0
OK
18.13 AT+CHLD Call Hold and Multiparty
Description
Command
Possible Responses
Request call related
supplementary
services
AT+CHLD=<n>
• +CME ERROR <err>
• OK
• ERROR
Show if the command
is supported
AT+CHLD=?
• +CHLD: (list of
supported <n>s)
• +CME ERROR <err>
• OK
• ERROR
This command allows control of the following call related services:
• a call can be temporarily disconnected from the ME but the
connection is retained by the network;
• multiparty conversation (conference calls);
• the served subscriber who has two calls (one held and the other
either active or alerting) can connect the other parties and release the
served subscriber's own connection.
Calls can be put on hold, recovered, released, added to conversation,
and transferred similarly as defined in 3GPP TS 22.030.
This is based on the GSM/UMTS supplementary services HOLD (Call
Hold; refer 3GPP TS 22.083 clause 2), MPTY (MultiParty; refer 3GPP
TS 22.084) and ECT (Explicit Call Transfer; refer 3GPP TS 22.091).
The interaction of this command with other commands based on other
GSM/UMTS supplementary services is described in the GSM/UMTS
standards.
Note!
Call Hold and MultiParty are only applicable to teleservice 11.
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It is recommended (although optional) that test command returns a list
of operations which are supported. The call number required by some
operations is denoted by “x” (e.g. +CHLD: (0,0x,1,1x,2,2x,3)).
<n>
Description
...
Integer type; equals to numbers entered before SEND
button in GSM 02.30 subclause 4.5.5.1
0
Releases all held calls or sets User Determined User Busy
(UDUB) for a waiting call
0X
1
Releases a specific call X from a held multiparty call
Releases all active calls (if any exist) and accepts the
other (held or waiting) call
1X
2
Releases a specific active call X
Places all active calls (if any exist) on hold and accepts
the other (held or waiting) call
2X
Places all active calls on hold, except call X with which
communication is supported
3
4
Adds a held call to the conversation
Connects the two calls and disconnects the subscriber
from both calls (explicit call transfer)
“X” is the numbering (starting with 1) of the call given by the sequence
of setting up or receiving the calls (active, held or waiting) as seen by
the served subscriber. Calls hold their number until they are released.
New calls take the lowest available number. Where both a held and a
waiting call exists, the above procedures shall apply to the waiting call
(i.e. not to the held call) in conflicting situation.
Note!
The “directory number” case shall be handled with dial command D,
and the END case with hangup command H (or +CHUP).
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18.14 AT+CLIP Calling Line Identification
Description
Command
Possible Responses
Request calling line
identification
AT+CLIP=<n>
• +CME ERROR <err>
• OK
• ERROR
Show the current
setting
AT+CLIP?
• + CLIP : <n>,<m>
• +CME ERROR <err>
• OK
• ERROR
Show if the command
is supported
AT+CLIP=?
• + CLIP : (list of
supported <n>s)
• +CME ERROR <err>
• OK
• ERROR
This command refers to the GSM supplementary service CLIP (Calling
Line Identification Presentation) that enables a called subscriber to get
the calling line identity (CLI) of the calling party when receiving a
mobile terminated call. Set command enables or disables the
presentation of the CLI at the TE. It has no effect on the execution of
the supplementary service CLIP in the network.
When the presentation of the CLI at the TE is enabled (and calling
subscriber allows), +CLIP: <number>,<type> response is returned after
every RING (or +CRING: <type>; refer to subclause “Cellular result
codes +CRC” in GSM 07.07) result code sent from TA to TE. Whether
this response is used when a normal voice call is answered, depends on
the manufacturer.
Read command gives the status of <n> and also triggers an interrogation
of the provision status of the CLIP service according to GSM 02.81
(given in <m>).
Test command returns values supported by the TA as a compound
value.
<n>
Description
0
1
Disable
Enable
<m>
Description
0
1
2
CLIP not provisioned
CLIP provisioned
Unknown (e.g. no network)
Unsolicited Result codes:
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+CLIP: <number>,<type>
<number>
Description
String type
String type phone number of format specified by <type>
<type>
Description
Integer format Type of address octet in integer (refer to GSM 04.08 sub-
clause 10.5.4.7)
Example
AT+CLIP=1
OK
RING
+CLIP: “07747008670”,129,,,“Matt L”,0
18.15 AT+CLIR Calling Line Identification Restriction
Description
Command
Possible Responses
Request calling line
identification restriction
AT+CLIR=[<n>]
• +CME ERROR <err>
• OK
• ERROR
Show the current
setting
AT+CLIR?
• +CLIR: <n>,<m>
• +CME ERROR <err>
• OK
• ERROR
Show if the command
is supported
AT+CLIR=?
• +CLIR: (list of supported
<n>s)
• +CME ERROR <err>
• OK
• ERROR
This command refers to CLIR-service according to GSM 02.81 that
allows a calling subscriber to enable or disable the presentation of the
CLI to the called party when originating a call.
Set command overrides the CLIR subscription (default is restricted or
allowed) when temporary mode is provisioned as a default adjustment
for all following outgoing calls. Using the opposite command can
revoke this adjustment. If this command is used by a subscriber without
provision of CLIR in permanent mode the network will act according
GSM 02.81.
The setting shall be per logical channel.
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When the MS is turned off and then turned on again the parameter
setting <n> shall turn back to default, i.e. the presentation of CLI shall
be used according to the subscription of the CLIR service, <n> is 0.
Read command gives the default adjustment for all outgoing calls
(given in <n>), and also triggers an interrogation of the provision status
of the CLIR service (given in <m>).
Test command returns values supported by the TA as a compound
value.
Note!
On a per call base CLIR functionality is explained in subclause “ITU-T
V.25ter dial command”.
<n>
Description
0
Presentation indicator is used according to the
subscription of the CLIR service
1
2
CLIR invocation
CLIR suppression
<m>
Description
0
1
2
3
4
CLIR not provisioned
CLIR provisioned in permanent mode
Unknown (e.g. no network)
CLIR temporary mode presentation restricted
CLIR temporary mode presentation allowed
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18.16 AT+CSSN Supplementary Service Notification
Description
Command
Possible Responses
Presentation of
notification result
codes from TA to TE
AT+CSSN=[<n>[,<m>]]
• +CME ERROR <err>
• OK
• ERROR
Show the current
setting
AT+CSSN?
• +CSSN: <n>,<m>
• +CME ERROR <err>
• OK
• ERROR
Show if the command
is supported
AT+CSSN=?
• +CSSN: (list of
supported <n>s),(list
of supported <m>s)
• +CME ERROR <err>
• OK
• ERROR
This command refers to supplementary service related network initiated
notifications. The set command enables or disables the presentation of
notification result codes from TA to TE.
When <n>=1 and a supplementary service notification is received after
a mobile originated call setup, unsolicited result code +CSSI:
<code1>[,<index>] is sent to TE before any other MO call setup result
codes presented in this ETS or in V.25ter. When several different
<code1>s are received from the network, each of them shall have its
own +CSSI result code.
When <m>=1 and a supplementary service notification is received
during a mobile terminated call setup or during a call, or when a forward
check supplementary service notification is received, unsolicited result
code +CSSU: <code2>[,<index>] is sent to TE. In case of MT call
setup, result code is sent after every +CLIP result code (refer command
“Calling line identification presentation +CLIP”) and when several
different <code2>s are received from the network, each of them shall
have its own +CSSU result code.
Note!
The difference between <index> and <cindex> is that <index> is a
position mark while <cindex> is a unique value for each CUG. <index>
is not supported.
Test command returns values supported by the TA as a compound
value.
<n>
Description
0
1
Disable the +CSSI result code presentation status in the TA
Enable the +CSSI result code presentation status in the TA
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<m>
Description
0
1
Disable the +CSSU result code presentation status in the TA
Enable the +CSSU result code presentation status in the TA
<code1>
Description
0
1
2
3
4
5
6
7
Unconditional call forwarding is active
Some of the conditional call forwarding are active
Call has been forwarded
Call is waiting
This is a CUG call (also <index> present)
Outgoing calls are barred
Incoming calls are barred
CLIR suppression rejected
<index>
Description
0…9
10
CUG index
No index (preferred CUG taken from subscriber data)
<code2>
Description
0
1
2
3
4
5
This is a forwarded call (MT call setup)
This is a CUG call (also <index> present) (MT call setup)
Call has been put on hold (during a voice call)
Call has been retrieved (during a voice call)
Multiparty call entered (during a voice call)
Call on hold has been released (this is not a SS
notification) (during a voice call)
6
Forward check SS message received (can be received
whenever)
10
Incoming call has been forwarded
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18.17 AT+CUSD Unstructured Supplementary Service Data
Description
Command
Possible Responses
Request unstructured
supplementary service
data
AT+CUSD=[<n>[,<str>]]
• +CME ERROR: <err>
• OK
Show the current
setting
AT+CUSD?
• +CUSD: <n>
• OK
• ERROR
Show if the command
is supported
AT+CUSD=?
• +CUSD: (list of
supported <n>s)
• OK
• ERROR
This command allows control of the Unstructured Supplementary
Service Data (USSD) according to GSM 02.90. Both network and
mobile initiated operations are supported. Parameter <n> is used to
disable/enable the presentation of an unsolicited result code (USSD
response from the network, or network initiated operation) +CUSD:
<m>[,<str>,<dcs>] to the TE. In addition, value <n>=2 is used to cancel
an ongoing USSD session. If <n> is not given then the default value 0
is taken.
When <str> is given, a mobile initiated USSD string or a response
USSD string to a network initiated operation is sent to the network. The
response USSD string from the network is returned in a subsequent
unsolicited +CUSD: result code.
The interaction of this command with other commands based on other
GSM supplementary services is described in the GSM standard.
Test command returns values supported by the TA as a compound
value.
Some different scenarios are shown below:
• An incoming network initiated USSD-Notify should be presented to
the external application as an unsolicited result code +CUSD: if the
external application has enabled result code presentation.
• An incoming USSD-request asking for a reply should sent to the
external application as an unsolicited result code +CUSD: if the
external application has enabled result code.
• If the external application answers to the request with the command
AT+CUSD then the ME sends the answer to the network.
• A USSD-request sent with the command AT+CUSD from the
external application.
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The different alternatives are shown below.
Network
Mobile Equipment
External application
1
2
Signal
Sends unsolicited
result code +CUSD
Result code presentation
enabled, presented
Signal asking
for reply
Sends unsolicited
result code +CUSD
Result code presentation
enabled, presented
3
Answer AT+CUSD
Sends AT+CUSD
3b
<n>
Description
0
1
2
Disable result code presentation in the TA
Enable result code presentation in the TA
Terminate (abort) USSD dialogue. This value is not applicable to
the read command response
<str>
Description
string
String type USSD (when <str> parameter is not given, network is not
interrogated):
-If <dcs> indicates that GSM 03.38 default alphabet is used:
*if TE character set other than “HEX” (refer command Select TE
Character Set +CSCS): ME/TA converts GSM alphabet into
current TE character set according to rules of
GSM 07.05 Annex A
Example 1
AT Command
Result Code
Description
AT+CUSD=1,“*34#”
Enable the Result Code
presentation in the TAE
and send a USSD-
request
+CUSD:1,“id code” OK
+CUSD:0 OK
Further user action
required, give id code
AT+CUSD=1,“7465338”
Id code given
No further user action
required
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Example 2
Example 3
AT Command
Result Code
Description
+CUSD:0,“Expensive
incoming call”
Incoming USSD-notify telling
the user that the incoming call
is expensive
AT Command
AT+CUSD=1,“*55*0700#”
Result Code
Description
Enable the Result Code
presentation in the TAE
and send a USSD-request
asking for an alarm at the
time 07:00
+CUSD:0,“ALARM”
At 07:00 the network
sends an alarm to the user
Example 4
AT+CUSD=1,“*#100#”
OK
+CUSD: 0,"07787154042"
OK
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19. Alphabetical Listing of AT Commands
AT Command
Description
Page No.
AT
Attention Command
AT&C
Circuit 109 (DCD) Control
AT&D
Circuit 108 (DTR) Response
AT&F
Set to Factory Defined Configuration
Circuit 107 (DSR) response
AT&S
AT&W
Store User Profile
AT*
List all Supported AT Commands
M2M Audio Profile Manipulation
Ericsson M2M Cell Description
Ericsson M2M Audio Profile Modification
Ericsson M2M Engineering Monitoring Mode
M2M Escape Sequence Guard Time
Ericsson M2M Fax Comm. Baud Rate Modification
Ericsson M2M Input/Output Read/Write
Ericsson M2M Neighbour BTS
AT*E2APR
AT*E2CD
AT*E2EAMS
AT*E2EMM
AT*E2ESC
AT*E2FAX
AT*E2IO
AT*E2NBTS
AT*E2NMPR
AT*E2PBCS
AT*E2PHFB
AT*E2SMSRI
AT*E2SPI
AT*E2SPN
AT*E2SSD
AT*E2SSI
AT*E2SSN
AT*E2STKC
AT*E2STKD
AT*E2STKG
AT*E2STKI
Ericsson M2M Set NMEA (GPS) Port Rate
Ericsson M2M Phonebook Check Sum
Portable Handsfree Button Sense Enable
Ring Indicator for SMS
Serial Peripheral Interface
M2M Service Provider Indication
M2M Supplementary Service Dispatch
M2M Supplementary Service Indications
Ericsson M2M SIM Serial Number
M2M STK Set Up Call
M2M STK Display Text
M2M STK Get Inkey
M2M STK Get Input
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AT Command
Description
Page No.
AT*E2STKL
AT*E2STKM
AT*E2STKN
AT*E2STKS
AT*E2STKTO
AT*EALR
AT*EALS
AT*EAMS
AT*EARS
AT*ECAM
AT*ECAR
AT*ECAW
AT*ECPI
M2M STK Select Item
M2M STK Set Up Menu
M2M STK Envelope (Menu Selection)
SIM Application Toolkit Settings
SIM Application Toolkit Settings
Ericsson Audio Line Request
Ericsson Request ALS Status
Ericsson Audio Mode Selection
Ericsson Audio Ring Signal
Ericsson Call Monitoring
Ericsson Callers Allowed Read
Ericsson Callers Allowed Write
Ciphering Indicator
AT*ECSP
AT*EDIF
Ericsson Customer Service Profile
Ericsson Divert Function
AT*EDST
Ericsson Daylight Saving Time
NMEA (GPS) Mode on UART2
Ericsson Group Item Read
Identity Presentation Set
AT*EENMEA
AT*EGIR
AT*EIPS
AT*ELAM
AT*ELIN
Ericsson Local Audio Mode
Ericsson Line Set
AT*EMAR
AT*EMIC
AT*EMIR
AT*EPEE
Ericsson Master Reset
Ericsson Microphone Mode
Ericsson Music Mute Indication Request
Ericsson Pin Event
AT*EPNR
AT*EPNW
AT*EPRR
AT*EPRW
AT*ERIL
Ericsson Read SIM Preferred Network
Ericsson Write SIM Preferred Network
Ericsson Personal Ring Type Read
Ericsson Personal Ring Type Write
Ericsson Ring Level Set
AT*ERIN
Ericsson Ring Set
AT*ERIP
Ericsson Ring Signal Playback Command
Ericsson Add to Group
AT*ESAG
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19. ALPHABETICAL LISTING OF AT COMMANDS
AT Command
Description
Page No.
AT*ESCG
Ericsson Create Group
AT*ESCN
Ericsson Set Credit Card Number
Ericsson Delete Group
AT*ESDG
AT*ESDI
Ericsson Delete Group Item
Ericsson Group Read
AT*ESGR
AT*ESIL
Ericsson Silence Command
Ericsson Set Line Name
AT*ESLN
AT*ESMA
Ericsson Set Message Alert Sound
Ericsson Settings Minute Minder
Ericsson Settings Number
Ericsson Settings Own Melody
Ericsson Set External Volume Control
Accumulated Call Meter
Set Alarm
AT*ESMM
AT*ESNU
AT*ESOM
AT*EXVC
AT+CACM
AT+CALA
AT+CALD
AT+CAMM
AT+CAOC
AT+CBST
Alarm Delete
Accumulated Call Meter Maximum
Advice of Charge
Select Bearer Service Type
Call Forwarding Number and Conditions
Set Clock and Date
AT+CCFC
AT+CCLK
AT+CCWA
AT+CEER
Call Waiting
Extended Error Report
AT+CFUN
AT+CGACT
AT+CGATT
AT+CGDATA
AT+CGDCONT
AT+CGEREP
AT+CGMI
AT+CGMM
AT+CGMR
AT+CGPADDR
AT+CGQMIN
Set Phone Functionality
PDP Context Activate or Deactivate
GPRS Attach or Detach
Enter Data State
Define PDP Context
GPRS Event Reporting
Read MS Manufacturer Identification
Read MS Model Identification
Read MS Revision Identification
Show PDP Address
Quality of Service Profile (Minimum Acceptable)
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AT Command
Description
Page No.
AT+CGQREQ
AT+CGREG
AT+CGSMS
AT+CGSN
AT+CHLD
AT+CHSC
AT+CHSD
AT+CHSN
AT+CHSR
AT+CHSU
AT+CHUP
AT+CIMI
Quality of Service Profile (Requested)
GPRS Network Registration Status
Select Service for MO SMS Messages
Read MS Product Serial Number Identification
Call Hold and Multiparty
HSCSD Current Call Parameters
HSCSD Device Parameters
HSCSD Non Transparent Call Configuration
HSCSD Parameters Report
HSCSD Automatic User Initiated Upgrading
Hang Up Call
Subscriber Identification
Indicator Control
AT+CIND
AT+CLAC
AT+CLCK
AT+CLIP
List All Available AT Commands
Facility Lock
Calling Line Identification
Calling Line Identification Restriction
Mobile Equipment Error
AT+CLIR
AT+CMEE
AT+CMER
AT+CMGC
AT+CMGD
AT+CMGF
AT+CMGL
AT+CMGR
AT+CMGS
AT+CMGW
AT+CMOD
AT+CMSS
AT+CMUX
AT+CNMI
AT+CNUM
AT+COLP
AT+COPS
Mobile Equipment Event Reporting
Send Command
Delete Message
Message Format
List Message
Read Message
Send Message
Write Message to Memory
Call Mode
Send From Storage
Switch to 07.10 Multiplex Protocol
New Message Indications to TE
Subscriber Number
Connected Line Identification on Presentation
Operator Selection
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AT Command
Description
Page No.
AT+CPAS
AT+CPBF
AT+CPBR
AT+CPBS
AT+CPBW
AT+CPIN
AT+CPMS
AT+CPUC
AT+CPWD
AT+CR
Phone Activity Status
Phonebook Find
Phonebook Read
Phone Storage
Phonebook Write
PIN Control
Preferred Message Storage
Price Per Unit and Currency Table
Change Password
Service Reporting Control
Cellular Result Code
AT+CRC
AT+CREG
AT+CRES
AT+CRLP
AT+CSAS
AT+CSCA
AT+CSCB
AT+CSCS
AT+CSDH
AT+CSMP
AT+CSMS
AT+CSQ
AT+CSSN
AT+CTZU
AT+CUSD
AT+CVHU
AT+F___
Network Registration
Restore SMS Settings
Radio Link Protocol
Save Settings
Service Centre Address
Select Cell Broadcast Message Type
Select Character Set
Show Text Mode Parameters
Set Text Mode Parameters
Select Message Service
Signal Strength
Supplementary Service Notification
Automatic Time Zone Update
Unstructured Supplementary Service Data
Voice Hang-Up
Low Level Fax Commands
Read Manufacturer Identification
Read Model Identification
Read Revision Identification
Cable Interface Character Format
DTE-DCE Local Flow Control
Cable Interface Local Rate Reporting
AT+GMI
AT+GMM
AT+GMR
AT+ICF
AT+IFC
AT+ILRR
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AT Command
Description
Page No.
AT+IPR
AT+VTS
AT+WS46
ATA
Cable Interface Port Command
DTMF and Tone Generation
Mode Selection
Answer
ATD
Dial
ATE
Command Echo
ATH
Hang up
ATI
Identification Information
Monitor Speaker Loudness
Monitor Speaker Control
Return to Online Data Mode
Select Pulse Dialling
ATL
ATM
ATO
ATP
ATQ
ATS0
ATS2
ATS3
ATS4
ATS5
ATS6
ATS7
ATS8
ATS10
ATT
Result Code Suppression
Automatic Answer Control
Escape Sequence Character
Command Line Termination Character
Response Formatting Character
Command Line Editing Character (BACKSPACE)
Blind Dial Delay Control
Connection Completion Timeout
Comma Dial Modifier Delay Control
Automatic Disconnect Delay Control
Select Tone Dialling
ATV
DCE Response Format
ATX
Call Progress Monitoring Control
Reset to Default Configuration
ATZ
Unsolicited
Description
Page No.
Result Code
*E2STKE
*E2STKP
*E2STKR
*E2STKU
STK Send Short Message
STK Send SS
STK Refresh
STK Send USSD
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