Nokia Telephone 9356900 issue 1 User Manual

Electronic user's guide released subject to "Nokia User's Guides Terms and Conditions, 7th June, 1998"

List of AT Commands for Nokia 22

Nokia 22

List of AT Commands

9356900 issue 1

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List of AT Commands for Nokia 22

TABLE OF CONTENTS

Click on the page number to go to the page.

Table of Contents................................................................................................................................ 3

Introduction ................................................................................................................................. 8

Data connections......................................................................................................................... 9

AT command syntax.................................................................................................................. 10

3.1

Register commands ............................................................................................................ 10

3.1.1 Basic commands ............................................................................................................. 10

3.1.2 Extended commands....................................................................................................... 10

TE-TA interface commands....................................................................................................... 12

4.1

V.25ter ................................................................................................................................ 12

4.1.1 S3 Command line termination character.......................................................................... 12

4.1.2 S4 Response formatting character................................................................................... 12

4.1.3 S5 Command line editing character................................................................................. 12

4.1.4 E Command echo............................................................................................................ 13

4.1.5 Q Result code suppression.............................................................................................. 13

4.1.6 V DCE response format................................................................................................... 13

4.1.7 X Result code selection and call progress monitoring control .......................................... 13

4.1.8 &C Circuit 109 (received line signal detector) behaviour.................................................. 14

4.1.9 &D Circuit 108 (data terminal ready) behaviour ............................................................... 14

4.1.10 +IPR Fixed DTE rate.................................................................................................... 14

4.1.11 +ICF DTE-DCE character framing................................................................................ 15

4.1.12 +IFC DTE-DCE local flow control................................................................................. 15

4.1.13 +ILRR DTE-DCE local rate reporting............................................................................ 16

4.1.14 +ES Error control selection .......................................................................................... 16

4.1.15 +EB Break handling in error control operation.............................................................. 16

4.1.16 +EFCS 32-bit frame check sequence........................................................................... 16

4.1.17 +ER Error control reporting .......................................................................................... 17

4.1.18 +ETBM Call termination buffer manage ....................................................................... 17

4.2

De facto .............................................................................................................................. 17

4.2.1 S25 Detect DTR change time .......................................................................................... 17

4.2.2 &S DSR signal behaviour ................................................................................................ 17

4.2.3 &K Select flow control...................................................................................................... 17

Generic commands ................................................................................................................... 18

5.1

V.25ter ................................................................................................................................ 18

5.1.1 Z Reset to default configuration....................................................................................... 18

5.1.2 &F Set to factory-defined configuration............................................................................ 18

5.1.3 I Request identification information.................................................................................. 18

5.1.4 +GMI Request TA manufacturer identification ................................................................. 18

5.1.5 +GMM Request TA model identification........................................................................... 18

5.1.6 +GMR Request TA revision identification ........................................................................ 19

5.1.7 +GSN Request TA serial number identification................................................................ 19

5.1.8 +GCAP Request complete capabilities list....................................................................... 19

5.2

De facto .............................................................................................................................. 19

5.2.1 &V View configuration...................................................................................................... 19

5.2.1.1

5.2.1.2

&W Store configuration............................................................................................. 19

&Y Select power-up configuration............................................................................. 19

5.3

GSM 07.07.......................................................................................................................... 20

5.3.1 +CGMI Request ME manufacturer identification.............................................................. 20

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5.3.2 +CGMM Request ME model identification ....................................................................... 20

5.3.3 +CGMR Request ME revision identification..................................................................... 20

5.3.4 +CGSN Request ME serial number identification ............................................................ 20

5.3.5 +CSCS Select TE character set....................................................................................... 20

5.3.6 +WS46 Select wireless network....................................................................................... 21

Call control commands.............................................................................................................. 22

6.1

V.25ter ................................................................................................................................ 22

6.1.1 D Dial .............................................................................................................................. 22

6.1.2 T Select tone dialling ....................................................................................................... 23

6.1.3 P Select pulse dialling...................................................................................................... 23

6.1.4 A Answer response ......................................................................................................... 24

6.1.5 H Hook control................................................................................................................. 24

6.1.6 O Return to online data state........................................................................................... 25

6.1.7 S0 Automatic answer....................................................................................................... 25

6.1.8 S6 Pause before blind dialling ......................................................................................... 25

6.1.9 S7 Connection completion time-out ................................................................................. 25

6.1.10 S8 Comma dial modifier time ....................................................................................... 26

6.1.11 S10 Automatic disconnect delay .................................................................................. 26

6.1.12 L Monitor speaker loudness ......................................................................................... 26

6.1.13 M Monitor speaker mode ............................................................................................. 26

6.1.14 +DS Data compression ................................................................................................ 26

6.1.15 +DR Data compression reporting................................................................................. 27

6.2

De facto .............................................................................................................................. 27

6.2.1 B CCITT/Bell mode.......................................................................................................... 27

6.2.2 S1 Ring count.................................................................................................................. 28

6.2.3 S2 Escape code character............................................................................................... 28

6.2.4 S12 Escape guard time ................................................................................................... 28

6.2.5 +++ Escape..................................................................................................................... 28

6.3

GSM 07.07.......................................................................................................................... 28

6.3.1 +CSTA Select type of address......................................................................................... 28

6.3.2 +CMOD Call mode .......................................................................................................... 29

6.3.3 +CHUP Hang-up call ....................................................................................................... 29

6.3.4 Mute control +CMUT ....................................................................................................... 30

6.3.5 Loudspeaker volume level +CLVL ................................................................................... 30

6.3.6 +CBST Select bearer service type................................................................................... 30

6.3.7 +CRLP Radio link protocol............................................................................................... 32

6.3.8 +CR Service reporting control.......................................................................................... 32

6.3.9 +CEER Extended error report.......................................................................................... 33

6.3.10 +CRC Cellular result codes.......................................................................................... 33

6.3.11 +CHSR Current call parameters reporting.................................................................... 34

6.3.12 +CSNS Single numbering scheme............................................................................... 34

6.3.13 +CHSD HSCSD device parameters ............................................................................. 35

6.3.14 +CHSN Parameter command syntax ........................................................................... 35

6.3.15 +CHSC Current call parameters................................................................................... 36

6.3.16 +CVHU Voice Hang Up Control ................................................................................... 37

Network service commands (GSM 07.07) ................................................................................. 38

7.1

+CNUM Subscriber number ................................................................................................ 38

+CREG Network registration............................................................................................... 38

+COPS Operator selection.................................................................................................. 39

+CLCK Facility lock............................................................................................................. 40

7.2

7.3

7.4

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7.5

7.6

7.7

7.8

7.9

+CPWD Change password ................................................................................................. 42

+CLIP Calling line identification presentation ...................................................................... 42

+CLIR Calling line identification restriction .......................................................................... 43

+COLP Connected line identification presentation .............................................................. 44

+CCWA Call waiting............................................................................................................ 45

7.10 +CUSD Unstructured supplementary service data .............................................................. 46

7.11 +CSSN Supplementary service notifications ....................................................................... 47

7.12 +CLCC List current calls ..................................................................................................... 47

7.13 +CCUG Closed user group ................................................................................................. 48

7.14 +CCFC Call Forwarding Number and Conditions................................................................ 49

7.15 +CHLD Call related to SSs.................................................................................................. 50

7.16 +CAOC Advice of charge.................................................................................................... 50

ME control and status commands (GSM 07.07) ........................................................................ 51

8.1

8.2

8.3

8.4

8.5

8.6

8.7

8.8

8.9

+CPWC ME power class control ......................................................................................... 51

+CPAS Phone activity status............................................................................................... 52

+CFUN Set phone functionality........................................................................................... 52

+CPIN Enter PIN................................................................................................................. 52

+CSQ Signal quality............................................................................................................ 53

+CPBS Select phonebook memory storage ........................................................................ 54

+CPBF Find phonebook entries .......................................................................................... 55

+CPBW Write phonebook entry .......................................................................................... 56

+CIND Indicator control....................................................................................................... 57

8.10 +CMER ME event reporting ................................................................................................ 57

ME error command (GSM 07.07)............................................................................................... 58

9.1

+CMEE Report mobile equipment error .............................................................................. 58

10 SMS commands (GSM 07.05)................................................................................................... 59

10.1 +CSMS Select message service......................................................................................... 59

10.2 +CPMS Preferred message storage.................................................................................... 59

10.3 +CMGF Message format..................................................................................................... 60

10.4 +CSCA Service centre address........................................................................................... 60

10.5 +CSMP Set text mode parameters...................................................................................... 61

10.6 +CSDH Show text mode parameters .................................................................................. 61

10.7 +CSCB Select cell broadcast message types ..................................................................... 62

10.8 +CSAS Save settings.......................................................................................................... 62

10.9 +CRES Restore settings ..................................................................................................... 63

10.10 +CNMI New message indications to TE.............................................................................. 63

10.11 +CMGL List messages........................................................................................................ 65

10.12 +CMGR Read message...................................................................................................... 67

10.13 +CNMA New message acknowledgement to ME/TA........................................................... 69

10.14 +CMGS Send message ...................................................................................................... 70

10.15 +CMSS Send message from storage.................................................................................. 71

10.16 +CMMS More messages to send........................................................................................ 72

10.17 +CMGW Write message to memory.................................................................................... 73

10.18 +CMGD Delete message .................................................................................................... 74

10.19 +CMGC Send command..................................................................................................... 74

11 Voice commands....................................................................................................................... 76

11.1 +VTS DTMF generation ...................................................................................................... 76

12 Miscellaneous commands ......................................................................................................... 77

12.1 V.25ter ................................................................................................................................ 77

12.1.1 A/ Repeat last command line ....................................................................................... 77

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12.1.2 S47 Force fax class 2/2.0 error correction mode.......................................................... 77

13 Fax commands.......................................................................................................................... 78

13.1 TIA-578-A ........................................................................................................................... 78

13.2 TIA-592............................................................................................................................... 78

13.3 TIA SP-2388 ....................................................................................................................... 79

14 Result codes.............................................................................................................................. 81

14.1 V.25ter ................................................................................................................................ 81

14.1.1 Basic syntax result codes............................................................................................. 81

14.1.2 +DR Data compression report...................................................................................... 81

14.1.3 +ILRR DTE-DCE local rate report ................................................................................ 81

14.2 De facto .............................................................................................................................. 82

14.2.1 Call repeat restriction result codes ............................................................................... 82

14.3 GSM 07.07.......................................................................................................................... 82

14.3.1 +CSSI Intermediate supplementary service notification................................................ 82

14.3.2 +COLP Connected line identification report.................................................................. 82

14.3.3 +CR Data service report............................................................................................... 83

14.3.4 +CRING Distinctive ring ............................................................................................... 83

14.3.5 +CLIP Calling line identification report.......................................................................... 83

14.3.6 +CSSU Unsolicited supplementary service notification ................................................ 84

14.3.7 +CCWA Call waiting..................................................................................................... 84

14.3.8 +CREG Network registration........................................................................................ 86

14.3.9 +CUSD Network initiated unstructured supplementary service data............................. 86

14.3.10 +CME ERROR Mobile equipment error........................................................................ 87

14.4 GSM 07.05.......................................................................................................................... 87

14.4.1 +CMTI New SMS-DELIVER indication......................................................................... 87

14.4.2 +CMT New SMS-DELIVER.......................................................................................... 88

14.4.3 +CBM New CBM.......................................................................................................... 89

14.4.4 +CDSI New SMS-STATUS-REPORT indication........................................................... 90

14.4.5 +CDS New SMS-STATUS-REPORT ........................................................................... 90

14.4.6 +CMS ERROR Message service failure....................................................................... 91

15 Error values............................................................................................................................... 92

15.1 +CME ERROR values......................................................................................................... 92

15.2 +CMS ERROR values......................................................................................................... 93

16 References................................................................................................................................ 95

17 Example procedures on some at-commands............................................................................. 96

17.1 Inputting PIN CODE............................................................................................................ 96

17.2 Initialising the Nokia 22 ....................................................................................................... 96

17.3 Sending an SMS from a terminal or other similar application .............................................. 97

17.4 Sending a sample SMS in the text mode............................................................................. 97

17.5 HSCSD command examples............................................................................................... 98

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Abbreviations

Attention

BCD

CBM

CIS

Binary Coded Decimal

Cell Broadcast Message

PCMCIA Card Information Structure

Calling Line Identity

CLI

COL

COR

Connected Line identity

Configuration Option Register

Carriage Return

CTS

DCD

DCE

DTE

DTMF

DTR

DSR

EMC

ERL

ESD

GSM

HSCSD

IMEI

IRA

Clear To Send

Data Carrier Detect

Data Circuit-terminating Equipment; see TA

Data Terminal Equipment; see TE

Dual Tone Multiple Frequency

Data Terminal Ready

Data Set Ready

Electro-Magnetic Compatibility

Echo Return Loss

Electro-Static Discharge

Groupe Special Mobile, Global System for Mobile communications

High Speed Circuit Switched Data

International Mobile station Equipment Identity

International Reference Alphabet

Integrated Services Digital Network

International Telecommunication Union

Interworking Function

ISDN

ITU

IWF

Mobile Equipment, e.g. a GSM phone

Mobile Originated

Mobile Terminated

Mobile Station

MSISDN

Mobile Station ISDN Number

Personal Computer

PCM

PDU

Pulse Code Modulation

Protocol Data Unit

Personal Identity Number

PUK

Personal Unblocking Key

Ring Indicator

RLP

RTS

SIM

Radio Link Protocol

Request To Send

Subscriber Identity Module

Short Message

SMS

SMSC

Short Message Service

Short Message Service Centre

Terminal Adapter, the physical equipment where AT command interpreter resides

(May be combined with ME)

Terminal Equipment, the physical equipment from where applications communicate

with TA using AT commands

Telecommunications Industry Association

Universal Asynchronous Receiver Transmitter

Universal Synchronous Receiver Transmitter

Unstructured Supplementary Service Data

TIA

UART

USRT

USSD

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INTRODUCTION

This document describes the AT commands that can be used to operate the Nokia 22 PBX

connectivity terminal. Other specifications on the terminal can be found in the Nokia 22 User's

Guide and Nokia 22 Operator's Guide.

All the mandatory and optional ITU-T V.25ter /1/, ETS GSM 07.07 /2/, and ETS GSM 07.05 /3/

commands that are applicable to the Nokia 22 are included in the Nokia 22 command set. The 'de

facto' commands that are widely used with modems are also supported. Note that the ITU-T

V.25ter is a combination of three TIA standards (TIA-602, TIA-615, IS-131).

The Nokia 22 can be used as an adapter for a Group 3 facsimile terminal that supports facsimile

Service Classes 1, 2 and 2.0. The supported facsimile AT commands are listed according to the

standards in which they are specified: Service Class 1 TIA-578-A /4/, Service Class 2.0 TIA-592 /5/

and Service Class 2 TIA SP-2388 /6/. TIA SP-2388 is a draft of a coming standard, but here it is

referred to as a public standard.

The Nokia 22 can be operated using a compatible computer or other devices with a 9-pin RS232

connector.

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DATA CONNECTIONS

The Nokia 22 supports non-transparent and transparent data connections and High Speed Circuit

Switched Data (HSCSD) in non-transparent mode, which enables a higher data transfer rate. Time

slot usage is presented as the number of up and down links. The Nokia 22 data transfer modes are

presented in Table 1.

Table 1. The Nokia 22 data transfer modes.

Data transfer mode

Mode

Data rate

Non-transparent data Asynchronous data

Asynchronous data

9600 kbps

14400 kbps

Asynchronous data HSCSD Multislot (1+1, 2+2, 3+1)

Transparent

Asynchronous data

2400 kbps

4800 kbps

9600 kbps

14400 kbps

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AT COMMAND SYNTAX

For basic information on the AT command syntax, refer to section V.25ter and to the GSM 07.07

section 4. This chapter describes the three different AT command formats and the default value

mechanisms for their parameters.

3.1 Register commands

Table 2. Register command format in command

description subsections

Command

Sn=<n>

Sn?

Response

<n> values

x..y (default z)

xxx..yyy

Set

Read

<n>

The register command factory default value (&F) is given in parentheses under the column ‘<n>

values’. The existence of a register command can be queried by giving a command without equal

or question marks (i.e. ATS3 returns OK, but it does not change the <n> setting). <n> cannot be

omitted when its value is set (i.e. ATS3= returns ERROR).

3.1.1 Basic commands

Table 3. Basic command format in command description

subsections

Command

CMD[x]

CMDy

Description

for value x

for value y

Set/execute

The commands D (dial), A (answer) and O (return to online data state) include also columns for

possible result codes.

The basic command (no ‘+’ prefix) &F default value is underlined. If no value is underlined, the

setting of that command is not stored in the non-volatile memory (the command &Y is an

exception). If the command parameter is in brackets (usually zero), the parameter can be omitted.

3.1.2 Extended commands

Table 4. Extended command format in command description subsections

Command

Response

Default

+cme error/+cms

error

Set/execute

Read

Test

+CMD[=<x>,...]

+CMD?

+CMD=?

[+CMD: <y>,...]

+CMD: <z>[,...]

[+CMD: ...]

[x,...]

[x]

The extended command (‘+’ prefix) parameter default values are given in a separate column. If the

default value is not in brackets, the default value is the &F default value of the corresponding

parameter. When such a parameter is omitted from a command, its value remains the same as

before. If the default value is in brackets, this value shall be used when the parameter is omitted

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from the command line. The setting of such a parameter is not stored in the memory. If a

parameter has no default value, it must always be given.

NOTE: Voice (+V) and fax (+F) commands do not exactly follow this format.

GSM commands can also return a +CME ERROR or +CMS ERROR final result code, when the

error is related to the ME or network functionality. The last column indicates whether these codes

can be returned. The presentation of +CME ERROR can be controlled with the +CMEE command.

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TE-TA INTERFACE COMMANDS

4.1 V.25ter

4.1.1 S3 Command line termination character

Command

S3=<n>

S3?

Response

<n> values

0..127 (default 13)

000..127

Set

Read

<n>

The S3 command sets the decimal IA5 value of command line termination used by the DCE as a

part of the header, trailer, and terminator for result codes and information text, along with the S4

parameter (see the description of the V command for usage).

If the value of S3 is changed on a command line, the result code issued in response to that

command line will use the new value of S3. For example, if S3 was previously set to 13 and the

command line “ATS3=50” is issued, the result code issued will use the character with the ordinal

value 50 (IA5 3/2) in place of the CR.

4.1.2 S4 Response formatting character

Command

S4=<n>

S4?

Response

<n> values

0..127 (default 10)

000..127

Set

Read

<n>

The S4 command sets the decimal IA5 value of the character generated by the DCE as a part of

the header, trailer, and terminator for result codes and information text, along with the S3

parameter (see the description of the V command 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.

4.1.3 S5 Command line editing character

Command

S5=<n>

S5?

response

<n> values

0..127 (default 8)

000..127

Set

Read

<n>

The S5 command sets the decimal IA5 value of the character recognised by the DCE as a request

to delete the immediately preceding character from the command line.

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4.1.4 E Command echo

Command

E[0]

Description

no echo

echo

Set

The E command determines whether or not the DCE echoes characters received from the DTE

during the command state and the online command state.

4.1.5 Q Result code suppression

Command

Q[0]

Description

transmit codes

suppress codes

Set

The Q command determines whether 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. Information text transmitted in

response to commands is not affected by this command.

4.1.6 V DCE response format

Command

Description

Set

V[0]

numeric V.25ter basic syntax result codes, limited headers and

trailers

Verbal V.25ter basic syntax result codes, full headers and trailers

The V command determines the contents of the header and trailer transmitted with result codes

and information responses. It also determines whether the result codes are transmitted in numeric

or verbal format. The text portion of information responses is not affected by this setting. The

command S3 and S4 settings affect header and trailer formatting. Note that the result codes

defined in GSM 07.07 and 07.05 have only verbal values.

4.1.7 X Result code selection and call progress monitoring control

Command

Description

Set

X[0]

OK, CONNECT, RING, NO CARRIER, ERROR codes enabled

also CONNECT 1200, CONNECT 2400 enabled

same as value 1

also BUSY enabled

also NO ANSWER enabled

also CONNECT 4800 (or higher data rates), CARRIER, DELAYED, BLACKLISTED enabled

The X command defines the call progress result codes that are sent from the Nokia 22 to the DTE.

When BUSY, NO ANSWER, DELAYED or BLACKLISTED are not enabled, NO CARRIER is used

instead. When CONNECT <rate> with a correct data <rate> is not enabled, CONNECT is used

instead. This command only affects the presentation of the result codes mentioned in this table.

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4.1.8 &C Circuit 109 (received line signal detector) behaviour

Command

&C[0]

Description

always on

Set

&C1

normal operation

The &C command determines how the state of the circuit 109 relates to the detection of a received

line signal from the distant end. Changing the parameter will take effect immediately in both

command and online command states.

In the &C1 mode of operation, the circuit 109 is on during the connection. The circuit 109 is also

known as a DCD or carrier signal.

4.1.9 &D Circuit 108 (data terminal ready) behaviour

Command

&D[0]

&D1

Description

DTR on->off ignored

DTR on->off causes transition to on-line command state if a call is in progress

DTR on->off causes hang-up

Set

&D2

&D3

DTR on->off causes hang-up and performs reset, like Z

The &D command determines how the DCE responds when the circuit 108/2 is changed from ON

to OFF during the online data state. The circuit 108 is also known as DTR signal.

4.1.10 +IPR Fixed DTE rate

Command

+IPR=<rate>

+IPR?

Response

Default

Set

Read

Test

+IPR: <rate>

+IPR=?

+IPR: (0),(9600,14400,19200,28800,38400,57600,115200)

The +IPR command sets the data rate at which the DCE will accept commands. The specified rate

takes effect immediately following the issuance of the current command line.

NOTE: The reset commands Z and &F do not change this setting.

Defined values

<rate> is the bit transmission rate in one second

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4.1.11 +ICF DTE-DCE character framing

Command

Response

Default

Set

Read

Test

+ICF=<format>,<parity>

+ICF?

+ICF=?

[3,3]

+ICF: <format>,<parity>

+ICF: (3,5),(0-3)

The +ICF command is used to determine the local serial port start-stop character framing that the

Nokia 22 uses when accepting DTE commands and when transmitting information text and a

result.

NOTE: The reset commands Z and &F do not change this setting.

Defined values

<format> determines the number of bits in the data bits, the presence of a parity bit,

and the number of stop bits in the start-stop frame.

8 data, 1 stop

7 data, 1 parity, 1 stop

<parity> determines how the parity bit is generated and checked, if present.

odd

even

mark

space

4.1.12 +IFC DTE-DCE local flow control

Command

Response

Default

Set

+IFC=<dce-by-dte>,<dte-by-dce>

2,2

Read

Test

+IFC?

+IFC=?

+IFC: <dce-by-dte>,<dte-by-dce>

+IFC: (0-3),(0-2)

The +IFC controls the operation of a local flow control between the DTE and the Nokia 22.

Defined values

<dce-by-dte> specifies the method to be used by the DTE to control the flow of the

received data from the Nokia 22

<dte-by-dce> specifies the method to be used by the Nokia 22 to control the flow of

the transmitted data from the DTE

no flow control

software flow control (XON/XOFF)

hardware flow control (RTS/CTS)

software flow control (XON/XOFF), with flow control characters passed also to the

remote DCE

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4.1.13 +ILRR DTE-DCE local rate reporting

Command

+ILRR=<n>

+ILRR?

Response

Default

Set

Read

Test

+ILRR: <n>

+ILRR: (0,1)

+ILRR=?

The +ILRR command controls whether the extended-format “+ILRR:<rate>” information text is

transmitted from the Nokia 22 to the DTE. The <rate> reported represents the current DTE-DCE

rate. If enabled, the intermediate result code is transmitted after any error control or data

compression reports are transmitted and before any final result code (i.e. CONNECT) is

transmitted.

4.1.14 +ES Error control selection

Command

Response

default

set

+ES=<orig-rqst>,

<orig-fbk>,<ans-fbk>

+ES?

4,0,2

read

test

+ES: <orig-rqst>,<orig-fbk>,<ans-fbk>

+ES: (0-4),(0,2-4),(0-2,4-6)

+ES=?

Mandatory when the V.42 error control is implemented. See the ITU-T Recommendation V.25ter,

section 6.5.1. These settings are only used in transparent data calls (see +CBST). The supported

parameter values depend on the V.42 modes that are supported. Fallback to direct mode is not

supported by Nokia products.

4.1.15 +EB Break handling in error control operation

Command

Response

default

+EB=<break-sel>,

+EB?

1,0,30

set

+EB: <break-sel>,<timed>,<def-length>

+EB: (0-3),(0,1),(0-254)

read

test

+EB=?

Mandatory when the V.42 error control is implemented. See the ITU-T Recommendation V.25ter,

section 6.5.2. These settings are only used in transparent data calls (see +CBST) with V.42

enabled (see +ES).

4.1.16 +EFCS 32-bit frame check sequence

Command

+EFCS=<value>

+EFCS?

response

Default

set

read

test

+EFCS: <value>

+EFCS: (0)

+EFCS=?

Mandatory when the V.42 error control is implemented. See th ITU-T Recommendation V.25ter,

section 6.5.4. Controls the use of the 32-bit frame check sequence option in the V.42 error control

mode. The 32-bit FCS is not supported by Nokia products.

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4.1.17 +ER Error control reporting

Command

+ER=<mode>

+ER?

response

default

Set

Read

Test

+ER: <mode>

+ER: (0,1)

+ER=?

Mandatory when the V.42 error control is implemented. See the ITU-T Recommendation V.25ter,

section 6.5.5. Controls the presentation of the +ER intermediate result code.

4.1.18 +ETBM Call termination buffer manage

Command

response

default

+ETBM=<txBuf>,<rxBuf>,<timer>

1,1,20

Set

+ETBM?

+ETBM=?

+ETBM: <txBuf>,<rxBuf>,<timer>

+ETBM: (0-2),(0-2),(0-30)

Read

Test

Mandatory when the V.42 error control is implemented. See the ITU-T Recommendation V.25ter,

section 6.5.6. These settings may also be used in a non-transparent data call buffer management.

4.2 De facto

4.2.1 S25 Detect DTR change time

Command

S25=<n>

S25?

Response

<n> values

0..255 (default 0)

000..255

Set

Read

<n>

The S25 command sets the time in seconds for reacting to the DTR signal change. The value 255

inhibits the signal change recognition. See also the &D command.

4.2.2 &S DSR signal behaviour

Command

&S[0]

&S1

Description

always on

no effect

Set

The &S command is ignored, the DSR is always ON.

4.2.3 &K Select flow control

Command

&K[0]

Description

no flow control

Set

&K3

&K4

hardware flow control (RTS/CTS)

software flow control (XON/XOFF)

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The &K command changes the same setting as the +IFC. The use of +IFC is recommended.

GENERIC COMMANDS

5.1 V.25ter

5.1.1 Z Reset to default configuration

Command

Z[0]

Description

reset to stored profile 0

reset to stored profile 1

Execute

The settings that are not stored in a profile (refer to &W) will be reset to their factory defaults (refer

to &F). The implementation is according to GSM 07.07 section 5.7.

5.1.2 &F Set to factory-defined configuration

Command

Description

Execute

&F[0]

reset to factory

defaults

This command instructs the Nokia 22 to set default values to all parameters. The command

parameters that are reset to their factory defaults are: S3, S4, S5, E, Q, V, X, &C, &D, +IFC,

+ILRR, S25, &S, +CSCS, S0, S7, S8, S10, +DS, +DR, S2, S12, +CSTA, +CMOD, +CBST, +CRLP,

+CR, +CRC, +CSNS, +CREG, +COPS (only <format>), +CLIP, +CLIR, +COLP, +CCWA (only

<n>), +CUSD (only <n>), +CSSN, +CMER, +CPBS, +CMEE, +CSMS, +CPMS, +CMGF, +CSCA,

+CSMP, +CSDH, +CSCB, +CNMI.

5.1.3 I Request identification information

Command Response

Description

Execute

I[0]

I4..I13

Nokia Mobile Phones

IMEI

SWx.xx

22 RPM-3 GSM900/1800

same as +GMI

same as +GSN

same as +GMR

same as +GMM

Ignored values

5.1.4 +GMI Request TA manufacturer identification

Command Response

Execute

+GMI

Nokia Mobile Phones

5.1.5 +GMM Request TA model identification

Command Response

Execute

+GMM

22 RPM-3 GSM900/1800

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5.1.6 +GMR Request TA revision identification

Command Response

+GMR SWx.xx

Execute

5.1.7 +GSN Request TA serial number identification

Command Response

Execute

+GSN

IMEI

5.1.8 +GCAP Request complete capabilities list

Command Response

Execute

+GCAP

+GCAP: +CGSM, +FCLASS, +DS +ES

Defined values

+CGSM This is not a command to be used, but it refers to the support of the GSM 07.07 AT

command set. The implementation is according to GSM 07.07 section 5.7.

+FCLASS A command to query the support of different facsimile classes

+DS Data Compression

5.2 De facto

5.2.1 &V View configuration

Command Description

Execute

Show current and stored profile settings (all command parameter values defined

under &F plus &Y setting)

5.2.1.1 &W Store configuration

Command Description

Execute

&W[0]

&W1

Store to profile 0

Store to profile 1

The &W command stores the current parameter values in the given profile. The command

parameters that are stored in a profile are the same as those listed under the &F command, except

for the parameters of the following commands that are not stored: +CMOD, +CSCA, +CSMP.

5.2.1.2 &Y Select power-up configuration

Command Description

Set

&Y[0]

&Y1

Power-up uses profile 0

Power-up uses profile 1

The &Y command defines the profile from which parameters are loaded when the Nokia 22 is

activated. This setting is not part of the settings that are stored in a profile. The &F command does

not affect this setting.

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5.3 GSM 07.07

5.3.1 +CGMI Request ME manufacturer identification

Command Response

Execute

Test

+CGMI

+CGMI=?

Nokia Mobile Phones

5.3.2 +CGMM Request ME model identification

Command Response

+cme error

Execute

Test

+CGMM

+CGMM=?

22 RPM-3 GSM900/1800

5.3.3 +CGMR Request ME revision identification

Command Response

+cme error

Execute

Test

+CGMR

+CGMR=?

SWx.xx

5.3.4 +CGSN Request ME serial number identification

Command Response

+cme error

Execute

Test

+CGSN

+CGSN=?

IMEI

5.3.5 +CSCS Select TE character set

Command

+CSCS=<chset>

+CSCS?

Response

Default

"8859-1"

Set

Read

Test

+CSCS: <chset>

+CSCS: ("GSM","HEX","IRA","PCCP437","PCDN","8859-1")

+CSCS=?

The +CSCS command informs the Nokia 22 of the character set that is used by the DTE.

Defined values

<chset> DTE character set:

"GSM"

"HEX"

GSM default alphabet (GSM 03.38 subclass 6.2.1); this setting easily causes

software flow control (XON/XOFF) problems.

Character strings consist only of hexadecimal numbers from 00 to FF; e.g. "032FE6"

equals three 8-bit characters that in decimals are 3, 47 and 230; no conversions of

the original ME character set shall be done.

"IRA"

International reference alphabet (ITU-T T.50)

"PCCP437" PC character set Code Page 437

"PCDN"

"8859-1"

PC Danish/Norwegian character set

ISO 8859 Latin 1 character set

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5.3.6 +WS46 Select wireless network

Command

+WS46=[12]

+WS46?

Response

Set

Read

Test

(12)

+WS46=?

The +WS46 command can be used to set and query a selected or supported wireless network.

Only the value 12 ‘GSM digital cellular’ is supported.

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CALL CONTROL COMMANDS

6.1 V.25ter

6.1.1 D Dial

Command

Possible

verbose result

codes (V1)

Numeri

c (V0)

Description

Execute

D<dial-string>

BLACKLISTED

BUSY

Call to the number is forbidden until manual reset

Called party is busy

CONNECT

Data/fax call established; rate 300 bps (or X forbids rate

display)

CARRIER

CONNECT 1200

CONNECT 2400

CONNECT 4800

CONNECT 9600

Data/fax call established; rate 1200 bps

Data/fax call established; rate 2400 bps

Data/fax call established; rate 4800 bps

Data/fax call established; rate 9600 bps

Data call established; rate 14400 bps

Data call established; rate 19200 bps

Data call established; rate 28800 bps

Data call established; rate 38400 bps

Call to the number is temporarily forbidden

Command cannot be actioned

CONNECT 14400 17

CONNECT 19200 18

CONNECT 28800 19

CONNECT 38400 20

DELAYED

ERROR

NO ANSWER

NO CARRIER

Called party does not answer

Call could not be established

Command aborted or voice call started with semicolon

character

The original description of the D command is specified in the V.25ter standard, but the

implementation is according to the modifications specified in GSM 07.07. Before one of the above

codes can be returned, some of the following may precede: +CSSI, +COLP, +CR (or CARRIER),

+DR, or +ILRR (in that order). The dial command is also used to control alternating mode calls

(see GSM 07.07 section 6.6 and annexes E and F).

NOTE: The +VTS command or comma modifier (i.e. “ATD,1234”; in this case the first comma does

not cause a pause) can be used to send DTMF digits.

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<dial-string> characters

V.25ter dialling digits

Values

0123456789+#*

ABCD

Description

Accepted as valid digits (* and # can only be in the beginning)

cause ERROR

in case of a voice call: originate call to the number preceding a

comma, wait for a remote answer, pause for a length specified with

the S8 register, and send numbers after comma as DTMF digits;

further commas cause a pause specified with S8 register (all commas

are ignored in case of data call)

V.25ter modifiers

T P ! W @

Accepted but ignored

V.25ter semicolon

GSM 07.07 modifiers

;

voice call originating (must be the last character of command line)

direct dialling from the phonebook (must be the first char after D) (see

next table)

allow calling line id presentation for this call

restrict calling line id presentation for this call

control CUG information for this call; use +CCUG values

re-dial to the number last dialled

De facto

NOTE: I is the only case-sensitive dial string character.

Direct dialling

command

D>mem<n>[i/I][G][;]

Description

+cme

error

Originate call to the phone number found in the location <n> in a specific

memory mem, which is one of the two letter memory abbreviations as returned

by +CPBS=? (without double quotes); the location range can be queried with

+CPBR=?; note that in case of a SIM ADN memory (SM), D>SIM<n> shall also

be accepted (due to inconsistency in 07.07)

D><n>[i/I][G][;]

Originate call to the phone number in memory location <n>; the memory

selected with +CPBS is used

6.1.2 T Select tone dialling

Command

Execute

The T command is ignored. The implementation is according to GSM 07.07 section 6.18.

6.1.3 P Select pulse dialling

Command

Execute

The P command is ignored. The implementation is according to GSM 07.07 section 6.18.

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6.1.4 A Answer response

Comman Possible verbose

Numeri Description

c (V0)

result codes (V1)

Execute

CONNECT

Data/fax call established; rate 300 bps (or X forbids rate

display)

CONNECT 1200

CONNECT 2400

CONNECT 4800

CONNECT 9600

CONNECT 14400

CONNECT 19200

CONNECT 28800

CONNECT 38400

CONNECT 48000

CONNECT 56000

ERROR

Data / fax call established; rate 1200 bps

Data / fax call established; rate 2400 bps

Data / fax call established; rate 4800 bps

Data / fax call established; rate 9600 bps

Data call established; rate 14400 bps

Data call established; rate 19200 bps

Data call established; rate 28800 bps

Data call established; rate 38400 bps

Data call established; rate 48000 bps

Data call established; rate 56000 bps

Command cannot be actioned

Call will be established

CARRIER

NO CARRIER

Call could not be established

Command aborted

A command instructs the Nokia 22 to immediately connect to the line and to start the phone call.

Any additional commands that appear after A on the same command line are ignored.

All the result codes are not in V.25ter. Before one of the above codes can be returned, some of

the following may precede: +CR (or CARRIER), +DR, or +ILRR (in that order). The answer

command is also used to control alternating mode calls (see GSM 07.07 section 6.6).

6.1.5 H Hook control

Command Description

Execute

H[0]

hang-up all calls (except possible waiting call) if only single mode calls are in

progress, or switch to voice mode if alternate mode call is active

The implementation is according to GSM 07.07 section 6.18.

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6.1.6 O Return to online data state

Command Possible verbose Numeri Description

result codes (V1) c (V0)

Execute

CONNECT

Data/fax call established; rate 300 bps (or X forbids rate

display)

CONNECT 1200

CONNECT 2400

CONNECT 4800

CONNECT 9600

CONNECT 14400 17

CONNECT 19200 18

CONNECT 28800 19

CONNECT 38400 20

ERROR

CARRIER

NO CARRIER

Data / fax call established; rate 1200 bps

Data / fax call established; rate 2400 bps

Data / fax call established; rate 4800 bps

Data / fax call established; rate 9600 bps

Data call established; rate 14400 bps

Data call established; rate 19200 bps

Data call established; rate 28800 bps

Data call established; rate 38400 bps

Command cannot be actioned

Call will be established

Call could not be established

Command aborted

The O command returns the Nokia 22 to the online data state from the online command mode. The

implementation is according to GSM 07.07 section 6.18.

6.1.7 S0 Automatic answer

Command

S0=<n>

S0?

Response

<n> values

0..255 (default 0)

000..255

Set

Read

<n>

The S0 command sets the number of rings (RING or +CRING result codes) to wait before

answering automatically. 0 disables auto answering.

6.1.8 S6 Pause before blind dialling

Command

S6=<n>

S6?

Response

<n> values

2..10

002

Set

Read

002

The S6 command is ignored. The implementation is according to GSM 07.07 section 6.18.

6.1.9 S7 Connection completion time-out

Command

S7=<n>

S7?

Response

<n> values

0..255 (default 60)

000..255

Set

Read

<n>

The S7 command sets the number of seconds to wait for the completion of call answering or

originating procedure before giving up and disconnecting. The implementation is according to GSM

07.07 section 6.18.

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6.1.10 S8 Comma dial modifier time

Command

S8=<n>

S8?

Response

<n> values

0..255 (default 2)

000..255

Set

Read

<n>

The S8 command specifies the time in seconds that the DCE shall pause during the signalling of

call addressing information to the network (dialling) when a “,” (comma) dial modifier is

encountered in a dial string of the D command. The implementation is according to GSM 07.07

section 6.18.

6.1.11 S10 Automatic disconnect delay

Command

S10=<n>

S10?

Response

<n> values

0..255 (default 100)

000..255

Set

Read

<n>

The S10 command sets the time in tenths of a second that the Nokia 22 will remain connected to

the line (off-hook) after it has indicated the absence of the received line signal. If the received line

signal is detected before the time specified in the S10 expires, the Nokia 22 remains connected to

the line and the call continues. The implementation is according to GSM 07.07 section 6.18.

6.1.12 L Monitor speaker loudness

Command

Execute

L[0]..L3

The L command is ignored. The implementation is according to GSM 07.07 section 6.18.

6.1.13 M Monitor speaker mode

Command

Execute

M[0]..M2

The M command is ignored. The implementation is according to GSM 07.07 section 6.18.

6.1.14 +DS Data compression

Command

Response

Default

Set

+DS=<dir>,<neg>,<P1>,<P2>

0,0,2048,20

Read

Test

+DS?

+DS=?

+DS: <dir>,<neg>,<P1>,<P2>

+DS: (0-3),(0,1),(512-2048),(6-32)

The +DS command controls the V.42 bis data compression function.

NOTE: The V.42 bis data compression must be supported by the network.

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Defined values

"dir" The desired direction(s) of the operation of the data compression function; from

the DTE's point of view:

Negotiated … no compression

Transmit only

Receive only

Both directions, accept any direction

"neg" specifies whether the DCE should continue to operate if the desired result is not

obtained:

Do not disconnect if Rec. V.42 bis is not negotiated by the remote DCE as specified

in <dir>

Disconnect if Rec. V.42 bis is not negotiated by the remote DCE as specified in <dir>

"P1" the maximum number of dictionary entries which should be negotiated

"P2" the maximum string length to be negotiated

6.1.15 +DR Data compression reporting

Command

+DR=<mode>

+DR?

Response

Default

Set

Read

Test

+DR: <mode>

+DR: (0,1)

+DR=?

The +DR command controls the presentation of the +DR intermediate result code.

Defined values

<mode> data compression reporting:

0 disabled

1 enabled, i.e. + DR result code transmitted

6.2

De facto

6.2.1 B CCITT/Bell mode

Command

Execute

B[0]..B1

The B command is ignored.

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6.2.2 S1 Ring count

Command

Response

<n> values

Read

S1?

<n>

000..255

The S1 command returns the number of rings (RING or +CRING result codes) counted after the

last MT call setup.

6.2.3 S2 Escape code character

Command

S2=<n>

S2?

Response

<n> values

0..127 (default 43)

000..127

Set

Read

<n>

The S2 command specifies the character to be used in the escape sequence. The default

character is a plus sign. See also the +++ Escape command.

6.2.4 S12 Escape guard time

Command

S12=<n>

S12?

Response

<n> values

0..255 (default 50)

000..255

Set

Read

<n>

The S12 command sets the guard time before and after the escape sequence. The value is in

fiftieths of a second (default is one second). See also the +++ Escape command.

6.2.5 +++ Escape

During the online data state, it is possible to enter the online command state by giving three same

characters (defined by S2register; default is ‘+’) in a sequence. Before and after the sequence,

there must be a pause of at least the time defined by the S12 register. By setting S12 to zero, an

escape sequence detection can be disabled.

6.3 GSM 07.07

6.3.1 +CSTA Select type of address

Command

+CSTA=<type>

+CSTA?

Response

Default

129

Set

Read

Test

+CSTA: <type>

+CSTA: (129, 145)

+CSTA=?

The +CSTA command selects the type of number according to the GSM specifications. The dial

command D always uses this setting, except for the case when the dial string includes the

international access code character (+). In this case, the type of address sent to the network

defaults to 145.

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Defined values

<type> type of number, refer to GSM 04.08 10.5.4.7:

129

145

unknown/telephony

international/telephony

6.3.2 +CMOD Call mode

Command

Response

Default

Set

Read

Test

+CMOD=<mode>

+CMOD?

+CMOD=?

+CMOD: <mode>

+CMOD: (0-3)

The +CMOD command selects the call mode of the further dialling commands (D) or for the next

answering command (A). The mode can be either single or alternating. When the single mode is

selected, the call originating and hang-up procedures are similar to the procedures specified in the

ITU-T Recommendations V.25ter, T.31 and T.32. In the GSM system, voice calls can be followed

by alternating voice/data and alternating voice/fax calls.

NOTE: The +CMOD shall be set to zero after a successfully completed alternating mode call. It

shall be set to zero also after a failed answering. The power-up, factory (&F) and user resets (Z)

shall also set the value to zero. This reduces the possibility of accidentally originating or answering

alternating mode calls.

NOTE: Alternating call answering operations from an external UI may change the +CMOD values.

Defined values

<mode>:

single mode

alternating voice/fax (teleservice 61)

alternating voice/data (bearer service 61)

voice followed by data (bearer service 81)

6.3.3 +CHUP Hang-up call

Command

Execute

Test

+CHUP

+CHUP=?

The +CHUP is an assured procedure to terminate an alternating mode call.

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6.3.4 Mute control +CMUT

Command

+CMUT=<n>

+CMUT?

Response

+CME ERROR: <err>

+CMUT: <n>

Set

Read

+CME ERROR: <err>

+CMUT: (list of supported <n>s)

Test

+CMUT=?

Description

This command is used to enable and disable the uplink voice muting during a voice call. The test

command returns the supported values as a compound value.

Defined values

mute off

mute on

6.3.5 Loudspeaker volume level +CLVL

Command

Response

Default

Set

0,0,1

+CLVL=<level>

+CLVL?

Read

Test

+CLVL: <level>

+CLVL: (list of supported <level>s)

+CLVL=?

Description

This command is used to select the volume of the internal loudspeaker of the ME. The test

command returns the supported values as a compound value.

Defined values

<level>: integer type value with manufacturer specific range (smallest value

represents the lowest sound level)

6.3.6 +CBST Select bearer service type

Command

Response

Default

Set

+CBST=<speed>,

+CBST?

0,0,1

Read

Test

+CBST: <speed>,<name>,<ce>

+CBST=?

+CBST: (0-7,12,14-16,34,36,38,39,43,47-51,65,66,68,70,71,75

,79-81), (0,2),(0-3)

The +CBST command selects the bearer service with a data rate and the connection element to be

used when data calls are originated. The values may also be used during a mobile terminated data

call setup, especially in the case of single numbering scheme calls (refer +CSNS).

Defined values

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<speed>:

autobauding (automatic selection of the speed; this setting is possible in case of a 3.1 kHz

modem and non-transparent service)

300 bps (V.21)

1200 bps (V.22)

1200/75 bps (V.23)

2400 bps (V.22bis)

2400 bps (V.26ter)

4800 bps (V.32)

9600 bps (V.32)

12 9600 bps (V.34)

14 14400 bps (V.34)

15 19200 bps (V.34)

16 28800 bps (V.34)

34 1200 bps (V.120)

36 2400 bps (V.120)

38 4800 bps (V.120)

39 9600 bps (V.120)

43 14400 bps (V.120)

47 19200 bps (V.120)

48 28800 bps (V.120)

49 38400 bps (V.120)

50 48000 bps (V.120)

51 56000 bps (V.120)

65 300 bps (V.110)

66 1200 bps (V.110)

68 2400 bps (V.110 or X.31 flag stuffing)

70 4800 bps (V.110 or X.31 flag stuffing)

71 9600 bps (V.110 or X.31 flag stuffing)

75 14400 bps (V.110 or X.31 flag stuffing)

79 19200 bps (V.110 or X.31 flag stuffing)

80 28800 bps (V.110 or X.31 flag stuffing)

<name>:

data circuit asynchronous (UDI or 3.1 kHz modem)

PAD Access (asynchronous) (UDI)

<ce>:

transparent

non-transparent

both, transparent preferred

both, non-transparent preferred

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6.3.7 +CRLP Radio link protocol

Command

Response

Default

+CRLP=<iws>,<mws>

,<T1>,<N2>[,<ver>

,<T4>]

Set

61,61,48,6

+CRLP: <iws>,<mws>,<T1>,<N2><CR><LF>

+CRLP: (0-61),(0-61),(39-255),(1-255)

Read

Test

+CRLP?

+CRLP=?

The +CRLP command sets the used radio link protocol (RLP) parameters when non-transparent

data calls are originated.

The read command returns the current settings.

The test command returns the values supported by the Nokia 22 as a compound value.

Defined values

<ver> :

RLP version number in integer format; when version indication is not present,

it shall equal 0

<iws>

<mws>

<T1>

<N2>

<T4>:

Inter Working Function (IWF) to MS window size

MS to IWF window size

acknowledgement timer in units of 10 ms

retransmission attempts

re-sequencing period in units of 10 ms

6.3.8 +CR Service reporting control

Command

+CR=<mode>

+CR?

Response

Default

Set

Read

Test

+CR: <mode>

+CR: (0,1)

+CR=?

The +CR command controls the returning of the intermediate result code +CR: <serv>. If enabled,

the intermediate result code is transmitted during connect negotiation when the Nokia 22 has

determined the speed and quality of service that will be used, and before any error control or data

compression reports are transmitted or any final result code (e.g. CONNECT) is transmitted.

Defined values

<mode>:

disables reporting

enables reporting

<serv>:

REL ASYNC asynchronous non-transparent

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6.3.9 +CEER Extended error report

Command

+CEER

+CEER=?

Response

+CEER: <report>

Execute

Test

The +CEER command returns the reason for the last call setup or in-call modification failure, or the

reason for the last last call release. <report> is the textual representation of the network cause

value as listed in GSM 04.08 annex H.

6.3.10 +CRC Cellular result codes

Command

+CRC=<mode>

+CRC?

Response

Default

Set

Read

Test

+CRC: <mode>

+CRC: (0,1)

+CRC=?

The +CRC command controls whether the extended format of an incoming call indication is used.

When enabled, an incoming call is indicated with the unsolicited result code +CRING: <type>

instead of the normal RING.

Defined values

<mode>:

disables extended format

enables extended format

<type>:

FAX

facsimile (TS 62)

VOICE

VOICE/REL ASYNC

ASYNC

normal voice (TS 11)

voice followed by data (BS 81)

normal data (BS 81)

REL ASYNC

normal data (BS 81)

ALT VOICE/REL ASYNC alternating voice/data, voice first (BS 61)

ALT REL ASYNC/VOICE alternating voice/data, data first (BS 61)

ALT VOICE/FAX

ALT FAX/VOICE

alternating voice/fax, voice first (TS 61)

alternating voice/fax, fax first (TS 61)

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6.3.11 +CHSR Current call parameters reporting

Command

+CHSR=<mode>

+CHSR?

Response

Default

Set

Read

Test

+CHSR: <mode>

+CHSR: (0,1)

+CHSR=?

When the CHSR=1 is set, the current HSCSD configuration is written to the terminal window every

time the HSCSD configuration has changed or a new HSCSD call has been initiated. To disable

the feature, key in at+chsr=0.

6.3.12 +CSNS Single numbering scheme

Command

+CSNS=<mode>

+CSNS?

Response

Default

Set

Read

Test

+CSNS: <mode>

+CSNS: (0-7)

+CSNS=?

The +CSNS command selects the bearer or teleservice to be used when a mobile terminated

single numbering scheme call is established, i.e. when a call without bearer capability element is

received.

The parameter values set with the +CBST command shall be used when <mode> equals a data

service. If the +CBST parameter is set to a value that is not applicable to single numbering calls,

the parameter shall be mapped to the closest valid value.

Defined values

<mode>:

voice

alternating voice/fax, voice first (TS 61)

fax (TS 62)

alternating voice/data, voice first (BS 61)

data

alternating voice/fax, fax first (TS 61)

alternating voice/data, data first (BS 61)

voice followed by data (BS 81)

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6.3.13 +CHSD HSCSD device parameters

Command Response

+cme error

+CHSD

+CHSD=?

+CHSD: <mclass>,<maxRx>,<maxTx>,<sum>,<codings>

execute

test

Parameters:

<mclass>: integer type; multislot class

<maxRx>: integer type; the maximum number of receive timeslots that the ME can use

<maxTx>: integer type; the maximum number of transmit timeslots that the ME can use

<sum>:

integer type; the total number of receive and transmit timeslots that the ME can use at

the same time (per TDMA frame). The following applies in a HSCSD call: 1

£ (receive slots) + (transmit slots) £ <sum>

<codings> a sum of integers each representing a supported channel coding

9.6k full rate data traffic channel

14.4k full rate data traffic channel

both 9.6k and 14.4k supported

6.3.14 +CHSN Parameter command syntax

Command

Response

+cme error

+CHSN=[<wAiur>[,<

wRx>[,<topRx>

[,<codings>]]]]

+CHSN=?

+CHSN: <wAiur>,<wRx>,<topRx>,<codings>

execute

test

+CHSN: (1-6),(1-3),(0-3),(4,8)

Description

The set command controls parameters for non-transparent HSCSD calls. Changing <topRx> or

<codings> value during a call does not affect the current call. Changing <wAiur> or <wRx> affects

the current call only if <topRx> was non-zero when a call was established.

Defined values

<wAiur>: integer type; wanted air interface user rate. The default value 0 indicates that the TA shall

calculate a proper value from the currently selected fixed network user rate (<speed>

subparameter from +CBST command), <codings>, and <wRx> (or <maxRx> from +CHSD

command if <wRx>=0). Other values:

9600 bps

14400 bps

19200 bps

28800 bps

43200 bps

<wRx>: integer type; wanted amount of receive timeslots. The default value 0 indicates that the TA

shall calculate a proper value from the currently selected <wAiur> and <codings>

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<topRx>: integer type; top value for <wRx> that the user is going to request during the next

established non-transparent HSCSD call. The default value 0 indicates that the user is not

going to change <wAiur>/<wRx> during the next call

<codings>: a sum of integers each representing a channel coding that is accepted for non-

transparent HSCSD calls. The default value 0 indicates that all the supported codings are

accepted (refer +CHSD command for other values)

<codings>: is a sum of integers each representing a supported channel coding:

9.6k full rate data traffic channel

14.4k full rate data traffic channel

12 Both 9.6k and 14.4k supported

<maxAiur>: integer type; the maximum value for <wAiur> (assuming that all supported channel

codings are accepted and the maximum number of timeslots is used)

<modify>:

<wAiur>/<wRx> modification during call is not supported (<topRx> accepts only 0)

<wAiur>/<wRx> modification during call is supported by ME/TA

NOTE! The non-transparent/transparent data service shall be selected by the at+cbst command.

6.3.15 +CHSC Current call parameters

Command response

+CHSC

+CHSC=?

+CHSC: <rx>,<tx>,<aiur>,<coding>

execute

test

Parameters:

<rx>:

integer type; the number of receive timeslots currently in use

integer type; the number of transmit timeslots currently in use

<tx>:

<aiur>:

integer type; the current air interface user rate (in case of a transparent service this

equals fixed network user rate) (Refer to the +CHSN command for the possible

values.)

<coding>: current channel coding (Refer to the +CHSD command for the possible values.)

+CVHU voice hang-up control

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6.3.16 +CVHU Voice Hang Up Control

Command

+CVHU=<mode>

+CVHU?

response

default

set

read

test

+CVHU: <mode>

+CVHU: (0-2)

+CVHU=?

By default, NMP products should ignore the DTR drop, but disconnect on the ATH during a call

that is in the voice mode. (GSM 07.07 section 6.).

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NETWORK SERVICE COMMANDS (GSM 07.07)

7.1 +CNUM Subscriber number

Command Response

+cme

error

Execute

Test

+CNUM

+CNUM: [<alpha1>],<number1>,<type1>

[<CR><LF>+CNUM: [<alpha2>],<number2>,<type2>

[...]]

+CNUM=?

The +CNUM command returns the MSISDNs related to the subscriber. This information can be

stored in the SIM. If the subscriber has different MSISDNs for different services, each MSISDN is

returned on a different line.

Defined values

<numberx> string type phone number of a format specified by <typex>

<typex> type of address octet in integer format (refer GSM 04.08 10.5.4.7):

optional alphanumeric string associated with <numberx>

145

129

international/telephony

unknown/telephony

7.2 +CREG Network registration

Command

Response

Default

+cme

error

Set

Read

Test

+CREG=<n>

+CREG?

+CREG=?

+CREG: <n>,<stat>[,<lac>,<ci>]

+CREG: (0-2)

The +CREG command controls the presentation of the unsolicited result code +CREG: <stat>

when <n>=1 and the ME network registration status changes, or the code +CREG:

<stat>[,<lac>,<ci>] when <n>=2 and the network cell changes.

The read command returns the status of a result code presentation and an integer <stat> which

shows whether the network has currently indicated the registration of the ME. The location

information elements <lac> and <ci> are returned only when <n>=2 and the ME is registered in the

network.

Defined values

<n>:

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disable network registration unsolicited result code

enable network registration unsolicited result code +CREG: <stat>

enable network registration and location information unsolicited result code

+CREG: <stat>[,<lac>,<ci>]

<stat>:

not registered, the ME is not currently searching for a new operator to register to

registered, home network

not registered, but ME is currently searching for a new operator to register to

registration denied

unknown

registered, roaming

<lac>

string type; a two byte location area code in hexadecimal format (e.g. "00C3" equals

193 in decimal)

<ci>:

string type; a two byte cell ID in hexadecimal format

7.3 +COPS Operator selection

Command

Response

Default

+cme error

Set

+COPS=<mode>,

+COPS?

[0,2]

Read

Test

+COPS: <mode>[,<format>,<oper>]

+COPS: [(<stat>,,,<oper>)

[,...]],,(0,1),(2)

+COPS=?

The +COPS command forces an attempt to select and register the GSM network operator.

<mode> is used to select whether the selection is automatically carried out by the Nokia 22 or

whether it is forced by this command to the operator <oper>, given in numeric 2 <format>. The

selected operator name format shall also apply to the further read commands (+COPS?).

The read command returns the current mode and the currently selected operator. If no operator is

selected, <format> and <oper> are omitted.

The test command returns a list of quadruplets, each representing an operator that is present in

the network. A quadruplet consists of an integer indicating the availability of the operator <stat>

and a numeric representation of the operator. The list of operators shall be in the following order:

home network, networks referenced in SIM and other networks.

After the operator list is returned, the Nokia 22 returns lists of the supported <mode>s and

<format>. These lists shall be delimited from the operator list with two commas.

Defined values

<mode>:

automatic (<oper> field is ignored)

manual (<oper> field shall be present)

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<format>:

<oper>

numeric <oper>

The numeric format is the GSM Location Area Identification number (refer GSM 04.08

10.5.1.3) which consists of a three BCD digit country code coded as in ITU-T E.212

Annex A, plus a two BCD digit network code, which is administration specific;

returned <oper> shall not be in Binary Coded Decimal (BCD) format, but in IRA

characters converted from BCD; hence the number has the following structure:

(country code digit 3)(country code digit 2)(country code digit 1)(network code digit

2)(network code digit 1)

<stat>:

unknown

available

current

forbidden

7.4 +CLCK Facility lock

Command

Response

Default

+cme

error

Execute

Test

+CLCK=<fac>,<mode>,

when <mode>=2:

[,,,7]

+CLCK: <status>[,<class1>

[<CR><LF>+CLCK: <status>,<class2>

[...]]]

+CLCK: ("PS","SC","AO","OI","OX",

"AI","IR","AB","AG","AC","FD")

+CLCK=?

The +CLCK command enables and disables or queries the state of SIM/ME security features (PIN

or security code query or fixed dialling feature) or call barring supplementary services. The <fac>

values “AB”, “AG” and “AC” are only applicable for <mode>=0. Only security code levels ‘phone’

and ‘none’ can be handled with this command. If the ‘memory’ level is set and the status is queried

(+CLCK="PS",2), the AT interface shall indicate ‘not active’ (+CLCK: 0). When the SS status

request response coming from the network indicates that the SS is active for a specific data bearer

services (e.g. ‘circuit async’), the AT interface shall only indicate ‘data’ (<class>=2) (‘not active’

case is displayed only when the SS is not active to any service; i.e. +CLCK: 0,7).

The test command returns facility values supported by the Nokia 22 as a compound value.

Defined values

<fac>:

"PS"

PH-SIM (lock Phone to SIM card) (The ME asks for a password when

an other SIM card than the current SIM card is inserted; the ME may

remember certain amount of previously used cards and, therefore, it

does not necessarily ask for a password when a previously used cards

is inserted)

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"SC"

SIM (lock SIM card) (SIM asks for a password in an ME power-up and

when this lock command is issued)

"AO"

"OI"

BAOC (Barr All Outgoing Calls) (refer ti GSM02.88, clause 1)

BOIC (Barr Outgoing International Calls) (refer to GSM 02.88, clause 1)

"OX"

BOIC-exHC (Barr Outgoing International Calls except for Home

Country) (refer to GSM 02.88, clause 1)

"AI"

"IR"

BAIC (Barr All Incoming Calls) (refer to GSM 02.88, clause 2)

BIC-Roam (Barr Incoming Calls when Roaming outside the home

country)

(refer to GSM 02.88, clause 2)

"AB"

All Barring services (refer to GSM 02.30) (applicable only for

<mode>=0)

"AG"

All outgoing barring services (refer to GSM 02.30) (applicable only for

<mode>=0)

"AC"

All incoming barring services (refer to GSM 02.30) (applicable only for

<mode>=0)

"FD"

SIM fixed dialling memory feature (if the PIN2 authentication is not done

during the current session, the PIN2 is required as <passwd>)

<mode>:

unlock

lock

query status

<status>:

not active

active

<passwd> string type; shall be the same as the password specified for the facility

from the Nokia 22 user interface or with the Change Password +CPWD

command

is a sum of integers each representing a class of information (the

default value 7 equals all classes):

voice (telephony)

data (usually refers to all bearer services; with <mode>=2 this may only

refer to some bearer service)

fax (facsimile services)

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7.5 +CPWD Change password

Command

Response

+cme

error

Execute

Test

+CPWD=<fac>,<oldpwd>,<newpwd>

+CPWD=?

+CPWD: ("PS",5),("SC",4),("AB",4),("P2",4)

The +CPWD command sets a new password for the facility lock function defined by the Facility

Lock +CLCK command. Note that the target lock has to be in <mode>=1.

The test command returns a list of pairs that present the available facilities and the maximum

length of their password.

Defined values

<fac>:

"PS"

"SC"

"AB"

"P2"

PH-SIM lock Phone to SIM card

SIM lock SIM card

All Barring services

SIM PIN2

<oldpwd>, <newpwd> string type; <oldpwd> shall be the same as the password

specified for the facility from the ME user interface or using the Change Password

+CPWD command. <newpwd> is the new password

7.6 +CLIP Calling line identification presentation

Command

+CLIP=<n>

+CLIP?

Response

Default

Set

Read

Test

+CLIP: <n>,<m>

+CLIP: (0,1)

+CLIP=?

The +CLIP 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. The +CLIP command enables or disables the

presentation of the CLI. It has no effect on the execution of the CLIP supplementary service in the

network.

When the presentation of the CLI is enabled (and the calling subscriber allows it), +CLIP: number>,

<type> response is returned after every RING (or +CRING: <type>; refer to "Cellular result codes

+CRC") result code.

The read command gives the status of <n> and triggers an interrogation of the provision status of

the CLIP service according GSM 02.81 (given in <m>).The test command returns the values

supported by the Nokia 22 as a compound value.

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Defined values

<n> parameter sets/shows the result code presentation status in the Nokia 22:

disable

enable

<m> parameter shows the subscriber CLIP service status in the network:

CLIP not provisioned

CLIP provisioned

unknown (e.g. no network, etc.)

<number> string type phone number of a format specified by <type>

<type> type of address octet in integer format (refer to GSM 04.08 subclause

10.5.4.7):

129

145

unknown/telephony

international/telephony

7.7 +CLIR Calling line identification restriction

Command

+CLIR=<n>

+CLIR?

Response

Default

Set

Read

Test

+CLIR: <n>,<m>

+CLIR: (0-2)

+CLIR=?

The +CLIR command refers to the 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.

The set command overrides the CLIR subscription when the temporary mode is provisioned as a

default adjustment for all the following outgoing calls. This adjustment can be revoked by using the

opposite command. If this command is used by a subscriber without a provision of CLIR in the

permanent mode, the network will act according GSM 02.81.

The read command gives the default adjustment for all the outgoing calls (given in <n>) and

triggers an interrogation of the provision status of the CLIR service (given in <m>).

The test command returns the supported values.

Defined values

<n> sets the adjustment for outgoing calls:

the presentation indicator is used according to the subscription of the

CLIR service

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CLIR invocation

CLIR suppression

<m> shows the subscriber CLIR service status in the network:

CLIR not provisioned

CLIR provisioned in permanent mode

unknown (e.g. no network, etc.)

CLIR temporary mode presentation restricted

CLIR temporary mode presentation allowed

7.8 +COLP Connected line identification presentation

Command

+COLP=<n>

+COLP?

Response

Default

Set

Read

Test

+COLP: <n>,<m>

+COLP: (0,1)

+COLP=?

The +COLP command refers to the GSM 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. It has no effect on the execution of the COLR supplementary

service in the network.

When enabled (and called subscriber allows), the +COLP: <number>,<type> intermediate result

code is returned before any +CR or V.25ter responses.

The read command gives the status of <n> and triggers an interrogation of the provision status of

the COLP service according to GSM 02.81 (given in <m>).

The test command returns the supported values.

Defined values

<n> sets/shows the result code presentation status in the Nokia 22:

disable

enable

<m> shows the subscriber COLP service status in the network:

COLP not provisioned

COLP provisioned

unknown (e.g. no network, etc.)

<number> string type phone number of a format specified by <type>

<type> type of address octet in integer format (refer GSM 04.08 subclause 10.5.4.7):

129

145

unknown/telephony

international/telephony

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7.9 +CCWA Call waiting

Command

Response

Default

+cme

error

Set

+CCWA=<n>,<mode>,<class>

when <mode>=2:

0[,,7]

+CCWA: <status>,<class1>

[<CR><LF>+CCWA: <status>,<class2>

[...]]

Read

Test

+CCWA?

+CCWA=?

+CCWA: <n>

+CCWA: (0,1)

The +CCWA command allows the controlling of the Call Waiting supplementary service according

to GSM 02.83. Activation, deactivation and status query are supported. When querying the status

of a network service (<mode>=2), the response line for the ‘not active’ case (<status>=0) should

be returned only if the service is not active for any <class>. The parameter <n> is used to disable

and enable the presentation of an unsolicited result code.

+CCWA: <number>,<type>,<class> when the call waiting service is enabled.

The interaction of this command with other commands based on other GSM supplementary service

is described in the GSM standard.

The test command returns the supported values.

Defined values

<n> sets/shows the result code presentation status:

disable

enable

<mode> when not given, the network is not interrogated:

disable

enable

query status

<classx> is a sum of integers each representing a class of information (the default

value 7 equals all classes):

voice (telephony)

data (usually refers to all bearer services; with <mode>=2 this may only

refer to some bearer services)

fax (facsimile services)

<status>:

not active

active

<number> string type phone number of a calling address in the format specified by

<type>

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<type> type of address octet in integer format (refer GSM 04.08 10.5.4.7):

129

145

unknown/telephony

international/telephony

7.10 +CUSD Unstructured supplementary service data

Command

Response

Default

+cme

error

Set

Read

Test

+CUSD=<n>,<str>,<dcs>

+CUSD?

+CUSD=?

+CUSD: <m>[,<str>,<dcs>]

+CUSD: <n>

+CUSD: (0,1)

0[,,0]

The +CUSD command allows the controlling of the Unstructured Supplementary Service Data

(USSD) according to GSM 02.90. Both network and mobile initiated operations are supported. The

parameter <n> is used to disable and enable the presentation of an unsolicited result code

(network initiated operation) +CUSD: <m>,<str>,<dcs>.

When <str> is given, a mobile initiated USSD-string or a response USSD-string to a network

initiated operation is sent to the network. In the case of a successful mobile initiated operation, the

response USSD-string coming from the network is returned before the final result code.

The test command returns the supported values.

Defined values

<n> sets/shows the result code presentation status:

disable

enable

<str>

string type USSD-string (when <str> parameter is not given, the network

is not interrogated):

- if <dcs> indicates that the GSM 03.38 default alphabet is used:

- if the TE character set is not "HEX" (refer to the Select TE Character

Set +CSCS command): the Nokia 22 converts GSM alphabet into the

current TE character set according to the rules of GSM 07.05, Annex A

- if the TE character set is "HEX": the Nokia 22 converts each 7-bit

character of the GSM alphabet into two IRA character long hexadecimal

numbers (e.g. character Π (GSM 23) is presented as 17 (IRA 49 and

55))

- if <dcs> indicates that a 8-bit data coding scheme is used: the Nokia

22 converts each 8-bit octet into two IRA character long hexadecimal

numbers (e.g. octet with integer value 42 is presented to the TE as two

characters 2A (IRA 50 and 65))

<dcs> GSM 03.38 Cell Broadcast Data Coding Scheme in integer

format (default 0)

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<m>:

no further user action required (network initiated USSD-Notify, or no

further information needed after mobile initiated operation)

further user action required (network initiated USSD-Request, or further

information needed after mobile initiated operation)

7.11 +CSSN Supplementary service notifications

Command

+CSSN=<n>,<m>

+CSSN?

Response

Default

0,0

Set

Read

Test

+CSSN: <n>,<m>

+CSSN: (0,1),(0,1)

+CSSN=?

The +CSSN command controls the presentation of the +CSSI intermediate result code and the

+CSSU unsolicited result code.

The test command returns the supported values.

Defined values

<n> sets/shows the +CSSI result code presentation status:

disable

enable

<m> sets/shows the +CSSU result code presentation status:

disable

enable

7.12 +CLCC List current calls

Command Response

+cme error

Execute

Test

+CLCC

[+CLCC: <id1>,<dir>,<stat>,<mode>,<mpty>

[<CR><LF>+CLCC: <id2>,<dir>,<stat>,<mode>,<mpty>

[...]]]

+CLCC=?

The +CLCC command returns a list of current calls of the Nokia 22. If the command succeeds but

no calls are available, no information response is sent.

Defined values

<idx> integer type call identification number as described in GSM 02.30 4.5.5.1. This

number can be used in the +CHLD command operations.

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<dir>:

mobile originated (MO) call

mobile terminated (MT) call

<stat> state of the call:

active

held

dialing (MO call)

alerting (MO call)

incoming (MT call)

waiting (MT call)

<mode> bearer/teleservice:

voice

data

fax

voice followed by data, voice mode

alternating voice/data, voice mode

alternating voice/fax, voice mode

voice followed by data, data mode

alternating voice/data, data mode

alternating voice/fax, fax mode

unknown

<mpty>:

call is not one of multiparty (conference) call parties

call is one of multiparty (conference) call parties

7.13 +CCUG Closed user group

Command

Response

Default

+CCUG=<n>,<index>,<info>

0,0,0

set

+CCUG?

+CCUG=?

+CCUG: <n>,<index>,<info>

read

test

Parameters:

<n>:

disable CUG temporary mode

enable CUG temporary mode

<index>:

0...9

CUG index

no index (preferred CUG taken from subscriber data)

<info>:

no information

suppress OA

suppress preferential CUG

suppress OA and preferential CUG+CCFC call forwarding number and conditions

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7.14 +CCFC Call Forwarding Number and Conditions

Command

Response

default

+cme error

+CCFC=<reason>,

<type>,<class>,

<subaddr>,

<satype>,

<time>

[,,,

129/145,7

,,128,20]

Execute

when <mode>=2:

+CCFC: <status>,<class1>[,<number>,<type>

[,<subaddr>,<satype>[,<time>]]]

[<CR><LF>+CCFC:

,<type>[,<subaddr>,<satype>[,<time>]]]

[...]]

+CCFC=?

+CCFC: (0-5)

Test

This command controls call forwarding supplementary services. The <reason> values 4 and 5 are

only applicable for <mode>=0. When the status request response from network indicates that the

SS is active for specific data bearer services (e.g. ‘circuit async’), the AT interface shall only

indicate ‘data’ (<class>=2) (the ‘not active’ case is displayed only when the SS is not active to any

service; i.e. +CCFC: 0,7).

Parameters:

<reason>:

0 unconditional

1 mobile busy

2 no reply

3 not reachable

4 all call forwarding (GSM 02.30)

5 all conditional call forwarding (GSM 02.30)

<mode>:

0 disable

1 enable

2 query status

3 registration

4 erasure

<number>: string type phone number of forwarding address in the format specified by <type>

<type>:

type of address octet in integer format (GSM 04.08, subclause 10.5.4.7). The default

value is 145 when the dialling string includes the international access code character

"+", otherwise the default value is129

<subaddr>: string type subaddress of the format specified by <satype>

<satype>: type of subaddress octet in integer format (GSM 04.08, subclause 10.5.4.8). The

default value is 128.

a sum of integers each representing a class of information (the default value 7 equals

all classes):

1 voice

2 data

4 fax

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also all other values below 128 are reserved

<time>:

1...30 when "no reply" is enabled or queried, gives the time in seconds to wait before

a call is forwarded. The default value is 20.

<status>:

0 not active

1 active

7.15 +CHLD Call related to SSs

Command

+CHLD=<n>

+CHLD=?

response

+cme error

Execute

test

+CHLD: (0,1,1x,2,2x,3,4)

Optional. See ETSI GSM 07.07 /2/, section 7.12. Controls call hold, multiparty and explicit call

transfer supplementary service operations as defined in GSM 02.30, section 4.5.5.1. A short

description of <n> values: 0 = release waiting or incoming call (send ‘busy’ cause to network), or

held calls; 1 = release active calls and accept another (waiting or held) call; 1x = release active call

x; 2 = active calls on hold and accept another (waiting or held) call; 2x = active multiparty call on

hold except for call x; 3 = add a held call to a multiparty call; 4 = connect a held call to an active (or

MO alerting) call (locally both calls are disconnected).

7.16 +CAOC Advice of charge

Command

response

+cme error

+CAOC[=<mode>]

[+CAOC?]

+CAOC=?

[+CAOC: <ccm>]

+CAOC: <mode>

[+CAOC: (0-2)]

execute

read

test

Optional. See ETSI GSM 07.07 /2/, section 7.15. Returns the current call meter value (in home

units) from the ME.

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ME CONTROL AND STATUS COMMANDS (GSM 07.07)

8.1 +CPWC ME power class control

Command

Response

+cme error

+CPWC=<class>,<band> [+CAOC: <ccm>]

execute

read

+CPWC?

+CPWC: <curr_class1>,

<def_class1>, <band1>

[,<curr_class2>,

<def_class2>,<band2>[...

]]

+CPWC=?

+CPWC:

test

(0,(0,4,5)),(1,(0-2))

This command is used to set the preferred ME power class for each supported GSM frequency

band. The interaction of this setting with the selected bearer service (+CBST and HSCSD

commands) is manufacturer specific (for example, selecting a multislot operation might reduce the

power class automatically). If the setting fails in an ME error, the +CME ERROR: <err> is returned.

The read command returns the currently selected output power class and default output power

class for each supported frequency band (as defined by the ME manufacturer). The parameter

<band1> and its associated power class parameters refer to the currently used frequency band.

For example, +CPWC: 2,1,1,5,4,0 in the case of a dual-band ME currently using the band

GSM1800, for which the power class is currently set to 2, the default being class 1, and the

currently set power class value for GSM900 is class 5, the default being class 4.

The test command returns the supported bands and their power classes. For example,

+CPWC: (0,(0,4,5)),(1,(0-2)) in a case of a dual-band handheld ME.

Defined values

<class>, <curr_classn>s, <def_classn>s:

default (not applicable to <curr_class>s or <def_classn>s)

1…

MS output power class as in GSM 05.05 [38]

<band>, <bandn>s:

GSM900

GSM1800

reserved for GSM1900

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8.2 +CPAS Phone activity status

Command

+CPAS

+CPAS=?

Response

+CPAS: <pas>

+CPAS: (0,1,3,4)

Execute

Test

The +CPAS command returns the activity status <pas> of the ME. It can be used to interrogate the

ME before requesting action from the phone.

The test command returns the supported values.

Defined values

<pas>:

ready

unavailable (This value is never reported.)

ringing

call in progress

8.3 +CFUN Set phone functionality

Command

Response

Default

+cme

error

Set

Read

Test

+CFUN=<fun>[,0]

+CFUN?

+CFUN=?

[0,0]

+CFUN: <fun>

+CFUN: (0,1),(0)

The +CFUN command selects the level of functionality <fun> of the Nokia 22. It can be used to

stop the use of the Nokia 22 in a controlled manner. After <fun>=0, it is not possible to

communicate with the Nokia 22, but the device has to be hardware reset to establish

communication.

The test command returns supported values.

Defined values

<fun>:

minimum functionality

full functionality, this setting is ignored

8.4 +CPIN Enter PIN

Command

Response

+cme

error

Set

Read

Test

+CPIN=<pin>,<newpin>

+CPIN?

+CPIN=?

+CPIN: <code>

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The +CPIN command sends a password to the Nokia 22 that is required for the operating the

Nokia 22 (SIM PIN, SIM PUK, PH-SIM PIN, etc.). Note that quotation marks must be used in this

command (e.g. AT+CPIN="1234").

If the required PIN is SIM PUK or SIM PUK2, <newpin> is required. <newpin> replaces the old pin

of the SIM.

The read command returns an alphanumeric string that indicates whether a password is required.

Defined values

<code>:

string type values

READY

ME is not pending for any password

SIM PIN

ME is waiting for a SIM PIN

SIM PUK

ME is waiting for a SIM PUK

PH-SIM PIN

PH-FSIM PIN

PH-FSIM PUK

SIM PIN2

ME is waiting for a phone-to-SIM card password

ME is waiting for a phone-to-very first SIM card password

ME is waiting for a phone-to-very first SIM card unblocking password

ME is waiting for a SIM PIN2 (it is recommended that this <code> is

returned only if the last executed command resulted in a PIN2

authentication failure (i.e. +CME ERROR: 17); if the PIN2 is not entered

immediately after the failure, it is recommended that the ME should not

block its operation)

SIM PUK2

ME is waiting for a SIM PUK2 (it is recommended that this <code>

should be returned only if the last executed command resulted in a

PUK2 authentication failure (i.e. +CME ERROR: 18); if PUK2 and the

new PIN2 are not entered immediately after the failure, it is

recommended that the ME should not block its operation)

ME is waiting for a network personalisation password

PH-NET PIN

PH-NET PUK

ME is waiting for a network personalisation unblocking password

PH-NETSUB PIN

PH-NETSUB PUK

PH-SP PIN

ME is waiting for a network subset personalisation password

ME is waiting for a network subset personalisation unblocking password

ME is waiting for a service provider personalisation password

ME is waiting for a service provider personalisation unblocking

password

PH-SP PUK

PH-CORP PIN

PH-CORP PUK

ME is waiting for a corporate personalisation password

ME is waiting for a corporate personalisation unblocking password

8.5 +CSQ Signal quality

Command

Response

+cme error

Execute

Test

+CSQ

+CSQ=?

+CSQ: <rssi>,99

+CSQ: (0-31,99),(99)

The +CSQ command returns the received signal strength indication <rssi>.

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The test command returns the supported values.

Defined values

<rssi> indicates the quality of the network coverage:

No network coverage

Nokia 22 is connected to the network

Satisfactory coverage

Good coverage

Excellent coverage

8.6 +CPBS Select phonebook memory storage

Command

Response

Default

+cme error

Set

Read

Test

+CPBS=<storage>

+CPBS?

+CPBS=?

"SM"

+CPBS: <storage>

+CPBS: ("ME","SM","FD","ON","EN",

"MC","DC","RC")

The +CPBS command selects the phonebook memory storage <storage> that is used by the other

phonebook commands.

The read command returns the currently selected memory, the number of used locations and the

total number of the locations in the memory.

The test command returns the supported storages.

Defined values

<storage>:

"DC"

"EN"

"FD"

"MC"

"ME"

"ON"

ME dialled calls list (+CPBW is not applicable for this storage)

SIM (or ME) emergency number (+CPBW is not applicable for this storage)

SIM fixdialling-phonebook

ME missed (unanswered received) calls list (+CPBW not applicable for this storage)

ME phonebook

SIM (or ME) own numbers (MSISDNs) list (reading of this storage is also available

using +CNUM )

"RC"

"SM"

ME received calls list (+CPBW is not applicable for this storage)

SIM phonebook

+CPBR

Read phonebook entries

Command

Response

+cme

error

Execute

Test

+CPBR=<index1>,

+CPBR=?

[+CPBR: <index1>,<number>,<type>,<text>[[...]

<CR><LF>+CPBR: <index2>,<number>,<type>,<text>]]

+CPBR: (<index>-list),[<nlength>],[<tlength>]

The +CPBR command returns phonebook entries in the location number range <index1> ...

<index2> from the current phonebook memory storage selected using the +CPBS. The entry fields

returned are the location number <indexn>, the phone number stored there <number> (of the

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format <type>) and text <text> associated with the number. If all the queried locations are empty

(but available), no information text lines can be returned.

The test command returns the location range supported by the current storage as a compound

value and the maximum lengths of the <number> and <text> fields. In the case of a SIM storage,

the lengths may not be available.

Defined values

<index1>, <index2>, <index> Integer type values in the range of the location numbers

of the phonebook memory.

<type>

string type phone number of the format <type>

type of address octet in integer format (refer to GSM 04.08

10.5.4.7):

129

145

unknown/telephony

international/telephony

<text>

string type field of the maximum length of <tlength>

integer type value indicating the maximum length of the

<number> field

integer type value indicating the maximum length of the

<text> field

8.7 +CPBF Find phonebook entries

Command

Response

+cme

error

Execute

Test

+CPBF=<findtext>

+CPBF=?

[+CPBF: <index1>,<number>,<type>,<text>[[...]

<CR><LF>+CPBF: <index2>,<number>,<type>,<text>]]

+CPBF: [<nlength>],[<tlength>]

The +CPBF command returns phonebook entries (from the current phonebook memory storage

selected using the +CPBS) which an alphanumeric field start with the <findtext> string. The entry

fields returned are the location number <indexn>, the phone number stored there <number> (of the

format <type>) and text <text> associated with the number. If the searched text is not found in the

entries in the current memory, the response is empty.

The test command returns the maximum lengths of the <number> and <text> fields. In the case of

a SIM storage, the lengths may not be available.

Defined values

<index1>, <index2> integer type values in the range of location numbers of the

phonebook memory

<number> string type phone number of the format <type>

<type> type of address octet in integer format (refer GSM 04.08 10.5.4.7):

129

145

unknown/telephony

international/telephony

<findtext>, <text> string type field of the maximum length of <tlength>

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<nlength> integer type value indicating the maximum length of the <number> field

<tlength> integer type value indicating the maximum length of the <text> field

8.8 +CPBW Write phonebook entry

Command

Response

Default

+cme

error

Execute

Test

+CPBW=<index>,<number>,

+CPBW=?

[,,129/145]

+CPBW: (<index>-list),[<nlength>],

(129,145),[<tlength>]

The +CPBW command writes a phonebook entry in the location number <index> in the current

phonebook memory storage selected using the +CPBS. The entry fields written are phone number

<number> in the format <type> and text <text> associated with the number. If these fields are

omitted, the phonebook entry is deleted.

The test command returns the location range supported by the current storage as a compound

value, the maximum length of the <number> field, the supported number formats of the storage,

and the maximum length of the <text> field. In the case of a SIM storage, the lengths may not be

available.

Defined values

<index> integer type values in the range of the location numbers of the phonebook

memory

<number> string type phone number of the format <type>

<type> type of address octet in integer format (refer GSM 04.08 10.5.4.7). The

default value is 145 when dialling string includes the international access code

character "+", otherwise 129:

129

145

unknown/telephony

international/telephony

<text> string type field of the maximum length of the <tlength>

<nlength> integer type value indicating the maximum length of the <number> field

<tlength> integer type value indicating the maximum length of the <text> field

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8.9 +CIND Indicator control

Command Response

+cme error

+CIND=

+CIND?

+CIND=?

set

read

test

+CIND: <ind>[,<ind>[,...]]

Dtp2v3, CDS1.2: +CIND: ("message",(0,1)),("call",(0,1)),

("roam",(0,1)),("smsfull",(0,1))

Nokia 22: +CIND:

("message",(0,1)),("call",(0,1)),("roam",(0,1)),

("smsfull",(0,1)),("signal",(0-5))

Optional. See ETSI GSM 07.07 /2/, section 8.9. Queries the current status of the ME physical

indicators.

8.10 +CMER ME event reporting

Command

Response

Default

2,0,0

,0[,0]

+cme error

+CMER=<mode>,<keyp>,

<disp>,<ind>[,0]

+CMER?

set

+CMER: <mode>,<keyp>,<disp>,<ind>,0

read

Test

+CMER=?

Dtp2v3, CDS1.2: +CMER:

(2),(0,2),(0),(0,1),(0)

Nokia 22 1.0: +CMER: (2,3),(0),(0),(0,1),(0)

Nokia 22: +CMER: (2,3),(0),(0),(0,1),(0)

Mandatory when any of the +CKEV, +CDEV, or +CIEV result codes are implemented. See ETSI

GSM 07.07 /2/, section 8.10. Enables/disables the presentation of the keypad, display and

indicator unsolicited result codes.

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ME ERROR COMMAND (GSM 07.07)

9.1 +CMEE Report mobile equipment error

Command

+CMEE=<n>

+CMEE?

Response

Default

Set

Read

Test

+CMEE: <n>

+CMEE: (0-2)

+CMEE=?

The +CMEE command disables or enables the use of the result code +CME ERROR: <err> as an

indication of an error relating to the functionality of the Nokia 22. When enabled, the ME related

errors cause the +CME ERROR: <err> final result code instead of the regular ERROR final result

code. ERROR is returned normally when an error is related to the syntax or invalid parameters.

The test command returns the supported values.

Defined values

<n>:

disable +CME ERROR: <err> result code and use ERROR instead

enable +CME ERROR: <err> result code and use numeric <err> values

enable +CME ERROR: <err> result code and use verbose <err> values

See also the result code +CME ERROR.

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10 SMS COMMANDS (GSM 07.05)

10.1 +CSMS Select message service

Command

Response

Default

Set

Read

Test

+CSMS=<service>

+CSMS?

+CSMS=?

+CSMS: 1,1,1

+CSMS: <service>,1,1,1

+CSMS: (0,1)

The +CSMS command selects the messaging service <service>.

The read command returns the current service setting.

The test command returns a list of all the supported services.

Defined values

<service>:

GSM 03.40 and 03.41 (the syntax of the SMS AT commands is

compatible with GSM 07.05 Phase 2, version 4.7.0; The phase 2+

features which do not require a new command syntax may be supported

(e.g. correct routing of messages with new Phase 2+ data coding

schemes)

GSM 03.40 and 03.41 (the syntax of the SMS AT commands is

compatible with the GSM 07.05 Phase 2+ version; the requirement of

the setting 1 is mentioned under the corresponding command

descriptions)

10.2 +CPMS Preferred message storage

Command

Response

Default

+cms

error

Set

+CPMS=<mem1 +CPMS: <used1>,<total1>,<used2>,

"SM","SM","SM"

,<mem2>

,<mem3>

+CPMS?

Read

Test

+CPMS: <mem1>,<used1>,<total1>,<mem2>,

+CPMS: ("ME","SM"),("ME","SM"),("SM")

+CPMS=?

The +CPMS command selects the memory storage <mem1>, <mem2> and <mem3> to be used

for reading, writing, etc.

The test command returns lists of the supported memory storage.

Defined values

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<mem1>

<mem2>

<mem3>

memory from which messages are read and deleted (the commands List Messages

+CMGL, Read Message +CMGR and Delete Message +CMGD)

memory to which writing and sending operations are made (the commands Send

Message from Storage +CMSS and Write Message to Memory +CMGW)

memory to which received SMs are preferred to be stored (unless forwarded directly

to the TE; refer to the command New Message Indications +CNMI); the received

CBMs are always stored in the "BM" (or some manufacturer specific storage) unless

directly forwarded to the TE; the received status reports are always stored in the "SR"

(or a manufacturer specific storage) unless directly forwarded to the TE

"ME"

"SM"

ME message storage

SIM message storage

<usedx> integer type; the number of messages currently in <memx>

<totalx> integer type; the total number of message locations in <memx>

10.3 +CMGF Message format

Command

+CMGF=<mode>

+CMGF?

Response

Default

Set

Read

Test

+CMGF: <mode>

+CMGF: (0,1)

+CMGF=?

The +CMGF command tells the Nokia 22 the input and output format of messages to be used.

<mode> indicates the format of the messages used with the send, list, read and write commands

and the unsolicited result codes resulting from the received messages. The mode can be either the

PDU mode (entire TP data units used) or the text mode (headers and body of the messages given

as separate parameters). The text mode uses the character set specified by the command Select

TE Character Set +CSCS to be used in the message body.

The test command returns the supported modes as a compound value.

Defined values

<mode>:

PDU mode

text mode

10.4 +CSCA Service centre address

Command

+CSCA=<sca>,<tosca>

+CSCA?

Response

+CSCA: <sca>,<tosca>

Default

"",129

Set

Read

Test

+CSCA=?

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The +CSCA command updates the SMSC address through which mobile originated SMs are

transmitted. In the text mode, the setting is used by the send and write commands. In the PDU

mode, the setting is used by the same commands, but only when the length of the SMSC address

coded into TPDU equals zero. The SMSC address may change also when the +CRES is taken

action.

The read command returns the current SMSC address settings.

Defined values

<sca> GSM 04.11 RP SC address Address-Value field in string format

<tosca> GSM 04.11 RP SC address Type-of-Address octet in integer format:

129

145

unknown/telephony

international/telephony

10.5 +CSMP Set text mode parameters

Command

Response

Default

Set

Read

Test

+CSMP=<fo>,<vp>,<pid>,<dcs>

+CSMP?

+CSMP=?

17,167,0,0

+CSMP: <fo>,<vp>,<pid>,<dcs>

The +CSMP command is used to select values for the additional parameters needed when the SM

is sent to the network or placed in a storage when the text format message mode is selected. It is

possible to set the validity period starting from the moment when the SM is received by the SMSC

(<vp> is in range 0... 255) or to define the absolute time of the validity period termination (<vp> is a

string). The format of <vp> is given by <fo>. The values of these parameters may change also

when the +CRES is used.

NOTE: When storing a SMS-DELIVER from the TE to the preferred memory storage in the text

mode (refer command Write Message to Memory +CMGW), the <vp> field can be used for <scts>.

Defined values

<fo>

first octet of GSM 03.40 SMS-DELIVER or SMS-SUBMIT in integer format

<vp>

depending on the SMS-SUBMIT <fo> setting: GSM 03.40 TP-Validity-Period either in

integer format or in time-string format

<pid>

<dcs>

GSM 03.40 TP-Protocol-Identifier in integer format

GSM 03.38 SMS Data Coding Scheme in integer format

10.6 +CSDH Show text mode parameters

Command

+CSDH=<show>

+CSDH?

Response

Default

Set

Read

Test

+CSDH: <show>

+CSDH: (0,1)

+CSDH=?

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The +CSDH command controls whether detailed header information is shown in the text mode

result codes.

The test command returns the supported values as a compound value.

Defined values

<show>:

do not show header values defined in the commands +CSCA and

+CSMP (<sca>, <tosca>, <fo>, <vp>, <pid> and <dcs>) nor <length>,

<toda> or <tooa> in the +CMT, +CMGL, +CMGR result codes for SMS-

DELIVERs and SMS-SUBMITs in the text mode; for SMS-COMMANDs

in the +CMGR result code, do not show <pid>, <mn>, <da>, <toda>,

show the values in result codes

10.7 +CSCB Select cell broadcast message types

Command

Response

Default

+cms

error

Set

Read

Test

+CSCB=<mode>,<mids>,<dcss>

+CSCB?

+CSCB=?

0,"",""

+CSCB: <mode>,<mids>,<dccs>

+CSCB: (0,1)

The +CSCB command defines the types of CBMs that are to be received.

The test command returns the supported modes as a compound value.

Defined values

<mode>:

message types specified in <mids> and <dcss> are accepted

message types specified in <mids> and <dcss> are not accepted

<mids>

string type, all the possible combinations of GSM 03.41 CBM message

identifiers, e.g. "0,1,5,320-478,922"

<dcss>

string type, all the possible combinations of 03.38 CBM data coding

schemes, e.g. "0-3,5”

10.8 +CSAS Save settings

Command

Response

Default

+cms

error

Execute

Test

+CSAS=<profile>

+CSAS=?

[1]

+CSAS: (0,1)

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The +CSAS command saves active message service settings to a non-volatile memory. The

settings specified in the commands Service Centre Address +CSCA, Set Message Parameters

+CSMP and Select Cell Broadcast Message Types +CSCB are saved. The SMSC address is not

stored if +CSCA is not set/restored during the current session (i.e. +CSCA? returns

+CSCA: "",129). The protocol id (<pid>), data coding scheme (<dcs>) and validity period (<vp>)

are not stored if the +CSMP parameter <fo> does not indicate SMS-SUBMIT (i.e. bits 1-0 are not

‘01’). In addition, the validity period is not stored if <fo> does not indicate the relative validity period

format (i.e. bits 4-3 are not ‘10’). The destination address or alpha tag cannot be stored through an

AT interface.

NOTE: The values that are not stored shall remain intact.

The test command shall display the supported profile numbers for reading and writing of settings.

10.9 +CRES Restore settings

Command

Response

Default

+cms

error

Execute

Test

+CRES=<profile>

+CRES=?

[1]

+CRES: (0,1)

The +CRES command restores message service settings from the non-volatile memory to the

active memory. The settings specified in the commands Service Centre Address +CSCA, Set

Message Parameters +CSMP and Select Cell Broadcast Message Types +CSCB are restored. If

the protocol id, data coding scheme or validity period is restored, the +CSMP parameter <fo> is

forced to be SMS-SUBMIT (i.e. bits 1-0 are set to ‘01’). In addition, if a validity period is restored,

<fo> is forced to indicate the relative validity period format (i.e. bits 4-3 are set to ‘10’). The rest of

the <fo> bits are set to zero.

The test command shall display the supported profile numbers.

10.10+CNMI New message indications to TE

Command

Response

Default

+cms

error

Set

+CNMI=<mode>,<mt>,

+CNMI?

0,0,0,0,0

Read

Test

+CNMI: <mode>,<mt>,<bm>,<ds>,<bfr>

+CNMI: (0-2),(0-3),(0,2,3),(0-2),(0,1)

+CNMI=?

The +CNMI command defines the procedure for indicating the receiving of new messages from the

network to the TE when the TE is active, e.g. DTR signal is ON. If the TE is inactive (e.g. DTR

signal is OFF), message receiving should be done as specified in GSM 03.38.

<mode> controls the processing of unsolicited result codes specified within this command, <mt>

sets the result code indication routing for SMS-DELIVERs, <bm> for CBMs and <ds> for SMS-

STATUS-REPORTs. <bfr> defines the handling method for buffered result codes when <mode> 1

or 2 is enabled.

The test command gives the supported setting values.

Defined values

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<mode> the setting affects only to unsolicited result codes specified within this command:

Buffer unsolicited result codes in the Nokia 22. If the Nokia 22 result code buffer is

full, the oldest indications will be discarded and replaced with the new received

indications.

Discard indication and reject new received message unsolicited result codes when

the control link is reserved (e.g. in on-line data mode). Otherwise forward them

directly to the TE.

Buffer unsolicited result codes in the Nokia 22 when the control link is reserved (e.g.

in the on-line data mode) and flush them to the TE after reservation. Otherwise

forward them directly to the TE.

NOTE: The result code buffer is in the volatile memory, messages may get lost if the

Nokia 22 is switched off before the codes are sent to TE.

<mt>

The rules for storing received SMs depend on its data coding scheme (refer to GSM

03.38), preferred memory storage (+CPMS) setting, and this value:

No SMS-DELIVER indications are routed to the TE.

If SMS-DELIVER is stored into the Nokia 22, an indication of the memory location is

routed to the TE using an unsolicited result code: +CMTI: <mem>,<index>

SMS-DELIVERs (except for class 2 messages and messages in the message waiting

indication group (store message)) are routed directly to the TE using an unsolicited

result code:

+CMT: <length><CR><LF><pdu> (PDU mode enabled)

+CMT: <oa>,<scts>[,<tooa>,<fo>,<pid>,<dcs>,<sca>,<tosca>,

<length>]<CR><LF><data> (text mode enabled; about parameters in italics, refer to

the command Show Text Mode Parameters +CSDH)

Class 2 messages and messages in the message waiting indication

group (store message) result in an indication as defined in <mt>=1.

Class 3 SMS-DELIVERs are routed directly to the TE using unsolicited result codes

defined in <mt>=2. The messages of other data coding schemes result in an

indication as defined in <mt>=1.

<bm> the rules for storing received CBMs depend on its data coding scheme (refer

GSM 03.38), the setting of the Select CBM Types (+CSCB), and this value:

No CBM indications are routed to the TE.

New CBMs are routed directly to the TE using an unsolicited result

code:

+CBM: <length><CR><LF><pdu> (PDU mode enabled)

or +CBM: <sn>,<mid>,<dcs>,<page>,<pages><CR><LF><data>

(textmode enabled)

Class 3 CBMs are routed directly to the TE using unsolicited result

codes defined in <bm>=2. If the CBM storage is supported, the

messages of other classes result in an indication as defined in <bm>=1.

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<ds>:

No SMS-STATUS-REPORTs are routed to the TE.

SMS-STATUS-REPORTs are routed to the TE using an unsolicited

result code:

+CDS: <length><CR><LF><pdu> (PDU mode enabled)

+CDS: <fo>,<mr>,[<ra>],[<tora>],<scts>,<dt>,<st> (text mode enabled)

If SMS-STATUS-REPORT is stored into the Nokia 22, an indication of

the memory location is routed to the TE using an unsolicited result code:

+CDSI: <mem>,<index>

<bfr>:

the Nokia 22 buffer of unsolicited result codes defined within this

command is flushed to the TE when <mode> 1-2 is entered (the OK

response shall be given before flushing the codes).

the Nokia 22 buffer of unsolicited result codes defined within this

command is cleared when <mode> 1-2 is entered.

10.11+CMGL List messages

Command Response

Default +cms

error

Execute

+CMGL=

<stat>

Text mode (+CMGF=1), SMS-DELIVER or SMS-SUBMIT:

+CMGL: <index>,<stat>,<oa/da>,[<scts>]

[,<tooa/toda>,<length>]<CR><LF><data>[<CR><LF>

+CMGL: <index>,<stat>,<oa/da>,[<scts>]

[,<tooa/toda>,<length>]<CR><LF><data>[...]]

text mode (+CMGF=1), SMS-STATUS-REPORT:

+CMGL: <index>,<stat>,<fo>,<mr>,[<ra>],[<tora>],<scts>,

["REC

UNREA

D"/0]

+CMGL: <index>,<stat>,<fo>,<mr>,[<ra>],[<tora>],<scts>,

<dt>,<st>[...]]

text mode (+CMGF=1), SMS-COMMAND:

+CMGL: <index>,<stat>,<fo>,<ct>[<CR><LF>

+CMGL: <index>,<stat>,<fo>,<ct>[...]]

PDU mode (+CMGF=0):

+CMGL: <index>,<stat>,<length><CR><LF><pdu>

[<CR><LF>+CMGL:<index>,<stat>,<length>

<CR><LF><pdu>[...]]

Test

+CMGL=?

Text mode (+CMGF=1):

+CMGL: ("REC UNREAD","ALL")

PDU mode (+CMGF=0):

+CMGL: (0,4)

Text mode:

The +CMGL command returns the messages with the status value <stat> from a message storage

to the TE. If the status of the message is 'received unread', the status in the storage changes to

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'received read'.

NOTE: If the selected <mem1> can contain different types of SMs (e.g. SMS-DELIVERs, SMS-

SUBMITs, SMS-STATUS-REPORTs and SMS-COMMANDs), the response may be a mix of the

responses of the different SM types. The TE application can recognise the response format by

examining the third response parameter.

The test command shall give a list of all the supported status values.

PDU mode:

The +CMGL command returns messages with the status value <stat> from the preferred message

storage <mem1> to the TE. Entire data units <pdu> are returned. If the status of the message is

'received unread', the status in the storage changes to 'received read'.

Defined values

<stat> integer type in the PDU mode (default 0), or string type in the text mode;

indicates the status of the message in the memory:

"REC UNREAD" received unread message (i.e. new message)

"REC READ" received read message

"STO UNSENT" stored unsent message (only applicable to SMs)

"STO SENT" stored sent message (only applicable to SMs)

"ALL" all messages (only applicable to the +CMGL command)

<index> integer type value in the range of location numbers

<oa/da> GSM 03.40 TP-Originating/Destination-Address Address-Value field in string

format; type of address given by <tooda/toda>

<scts> GSM 03.40 TP-Service-Centre-Time-Stamp in time-string format

<tooa/toda>/<tora> GSM 04.11 TP-Originating/Destination-Address Type-of-Address

octet in integer format

129

145

unknown/telephony

internal/telephony

<length> integer type value that indicates the length of the message body <data> in

characters in the text mode (+CMGF=1); or integer type value that indicates the

length of the actual TP data unit in octets (i.e. the RP layer SMSC address octets are

not counted in the length) in the PDU mode (+CMGF=0),

<data> SMS: GSM 03.40 TP-User-Data in the text mode responses

<fo> first octet of GSM 03.40 SMS-DELIVER, SMS-SUBMIT, SMS-STATUS-

REPORT, or SMS-COMMAND in integer format

<mr> GSM 03.40 TP-Message-Reference in integer format

<ra> GSM 03.40 TP-Recipient-Address Address-Value field in string format; the type

of address is given by <tora>

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<dt> GSM 03.40 TP-Discharge-Time in time-string format: “yy/MM/dd,hh:mm:ss±zz”

<st> GSM 03.40 TP-Status in integer format

<ct> GSM 03.40 TP-Command-Type in integer format

<pdu> GSM 04.11 SC address followed by GSM 03.40 TPDU in hexadecimal format

10.12+CMGR Read message

Command Response

+cms

error

Execute

+CMGR=

<index>

text mode (+CMGF=1), SMS-DELIVER:

+CMGR: <stat>,<oa>,<scts>[,<tooa>,<fo>,<pid>,<dcs>,

text mode (+CMGF=1), SMS-SUBMIT:

+CMGR: <stat>,<da>[,<toda>,<fo>,<pid>,<dcs>,[<vp>],

text mode (+CMGF=1), SMS-STATUS-REPORT:

+CMGR: <stat>,<fo>,<mr>,[<ra>],[<tora>],<scts>,<dt>,<st>

text mode (+CMGF=1), SMS-COMMAND:

+CMGR: <stat>,<fo>,<ct>[,<pid>,[<mn>],[<da>],[<toda>],

<length><CR><LF><cdata>]

PDU mode (+CMGF=0):

+CMGR: <stat>,<length><CR><LF><pdu>

Test

+CMGR=?

Text mode:

The +CMGR command returns a message with the location value <index> from the message

storage. If the status of the message is 'received unread', the status in the storage changes to

'received read'.

PDU mode:

The +CMGR command returns a message with the location value <index> from the preferred

message storage to the TE. The status of the message and the entire message data unit <pdu> is

returned. If the status of the message is 'received unread', the status in the storage changes to

'received read'.

Defined values

<index> integer type; value in the range of the location numbers

<stat> integer type in the PDU mode (default 0), or string type in the text mode;

indicates the status of the message in the memory:

"REC UNREAD" received unread message (i.e. new message)

"REC READ" received read message

"STO UNSENT" stored unsent message (only applicable to SMs)

"STO SENT" stored sent message (only applicable to SMs)

"ALL" all messages (only applicable to the +CMGL command)

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<oa>/<da> GSM 03.40 TP-Originating/Destination-Address Address-Value field in

string format; the type of address is given by <tooda>/<toda>

<scts> GSM 03.40 TP-Service-Centre-Time-Stamp in time-string format

<tooa>/<toda>/<tora> GSM 04.11 TP-Originating/Destination-Address Type-of-

Address octet in integer format

129

145

unknown/telephony

internal/telephony

<fo> first octet of GSM 03.40 SMS-DELIVER, SMS-SUBMIT, SMS-STATUS-

REPORT, or SMS-COMMAND in integer format

<pid> GSM 03.40 TP-Protocol-Identifier in integer format

<dcs> GSM 03.38 SMS Data Coding Scheme in integer format

<sca> GSM 04.11 RP SC address Address-Value field in string format, type of

address given by <tosca>

<tosca> GSM 04.11 RP SC address Type-of-Address octet in integer format

129

145

unknown/telephony

internal/telephony

<length> integer type value that indicates the length of the message body <data> in

characters in the text mode (+CMGF=1); or that indicates the length of the actual TP

data unit in octets (i.e. the RP layer SMSC address octets are not counted in the

length) in the PDU mode (+CMGF=0).

<data> SMS: GSM 03.40 TP-User-Data in text mode responses

<vp> GSM 03.40 TP-Validity-Period either in integer format or in time-string format

(refer <dt>)

<mr> GSM 03.40 TP-Message-Reference in integer format

<ra> GSM 03.40 TP-Recipient-Address Address-Value field in string format; type of

address given by <tora>

<dt> GSM 03.40 TP-Discharge-Time in time-string format: “yy/MM/dd,hh:mm:ss±zz”

<st> GSM 03.40 TP-Status in integer format

<ct> GSM 03.40 TP-Command-Type in integer format

<mn> GSM 03.40 TP-Message-Number in integer format

<pdu> GSM 04.11 SC address followed by GSM 03.40 TPDU in hexadecimal format

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10.13+CNMA New message acknowledgement to ME/TA

Command

Response

+cms

error

Execute

Test

text mode (+CMGF=1):

+CNMA

PDU mode (+CMGF=0):

+CNMA=<n>,<length><CR>PDU is given<ctrl-Z/ESC>

+CNMA=?

PDU mode

(+CMGF=0):

+CNMA: (0-2)

Text mode:

The +CNMA command confirms the correct reception of a new message (SMS-DELIVER or SMS-

STATUS-REPORT) which is routed directly to the TE. This acknowledgement command (causing

the Nokia 22 to send RP-ACK to the network) shall be used when the +CSMS parameter

<service> equals 1. The Nokia 22 shall not send another +CMT or +CDS result code to the TE

before the previous one is acknowledged.

If the Nokia 22 does not get acknowledgement within the required time (network timeout), the

Nokia 22 will send a RP-ERROR to the network. Routing to the TE will automatically be disabled

by setting both <mt> and <ds> values of +CNMI to zero.

PDU mode:

The +CNMA command confirms the reception of a new message (SMS-DELIVER or SMS-

STATUS-REPORT) which is routed directly to the TE. This acknowledgement command shall be

used when the +CSMS parameter <service> equals 1. In the PDU mode, it is possible to send

either a positive (RP-ACK) or a negative (RP-ERROR) acknowledgement to the network. The

parameter <n> defines which acknowledgement will be sent. Optionally (when <length> is greater

than zero), an acknowledgement TPDU (SMS-DELIVER-REPORT for RP-ACK or RP-ERROR)

may be sent to the network. The entering of the PDU is done similarly as specified in the command

Send Message +CMGS, except that the format of <ackpdu> is used instead of <pdu> (i.e. SMSC

address field is not present). The PDU shall not be bounded by double quotes. The TA shall not

send another +CMT or +CDS result code to the TE before the previous code is acknowledged.

If the Nokia 22 does not get an acknowledgement within the required time (network timeout), the

ME should send an RP-ERROR to the network. The Nokia 22 shall automatically disable routing to

the TE by setting both <mt> and <ds> values of the +CNMI to zero.

The test command returns a list of supported <n> values. If the only value that is supported is 0,

the device does not support the sending of TPDU.

Defined values

<n>:

command operates as defined for the text mode

send RP-ACK (or buffered result code received correctly)

send RP-ERROR (if PDU is not given, the Nokia 22 shall send an SMS-

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DELIVER-REPORT with a GSM 03.40 TP-FCS value set to ‘FF’ (unspecified error

cause))

<length> the length of the actual TP data unit in octets (i.e. the RP layer SMSC

address octets are not counted in the length)

10.14+CMGS Send message

Command

Response

Default

+cms

error

Execute

Text mode (+CMGF=1):

+CMGS=<da>,<toda><CR>

text is entered<ctrl-Z/ESC>

text mode (+CMGF=1) and sending

ok:

+CMGS: <mr>[,<scts>]

text mode:

[,129/145]

PDU mode (+CMGF=0):

+CMGS=<length><CR>

PDU is given<ctrl-Z/ESC>

+CMGS=?

PDU mode (+CMGF=0) and sending

ok:

+CMGS: <mr>[,<ackpdu>]

Test

Text mode:

The +CMGS command sends message to the network (SMS-SUBMIT). The message reference

value <mr> is returned to the TE when a message is successfully delivered. Optionally (when

+CSMS <service> value is 1 and the network supports), <scts> is returned. Values can be used to

identify a message upon unsolicited delivery status report result code.

PDU mode:

The +CMGS command sends a message from a TE to the network (SMS-SUBMIT). The message

reference value <mr> is returned to the TE when a message is successfully delivered. Optionally

(when +CSMS <service> value is 1 and the network supports), <ackpdu> is returned. Values can

be used to identify a message upon an unsolicited delivery status report result code.

The text/PDU entering is as specified in 07.05. If the SMSC address is not set/restored during the

current session (i.e. +CSCA? returns +CSCA: "",129), it must automatically be read from the

SIM/ME (location 1). In the PDU mode, all kinds of GSM 03.40 MO TPDUs can be sent with this

command (operation equals +CMGC).

Defined values

<da> GSM 03.40 TP-Destination-Address Address-Value field in string format; the

type of address is given by <toda>

<toda> GSM 04.11 TP-Destination-Address Type-of-Address octet in integer format

129

145

unknown/telephony

internal/telephony

<mr> GSM 03.40 TP-Message-Reference in integer format

<scts> GSM 03.40 TP-Service-Centre-Time-Stamp in time-string format

<length> 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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<ackpdu> GSM 03.40 RP-User-Data element of RP-ACK PDU

10.15+CMSS Send message from storage

Command

Response

Default

+cms

error

Execute

+CMSS=<index>, text mode (+CMGF=1) and sending ok:

[,"",129/145]

+CMSS=?

+CMSS: <mr>[,<scts>]

PDU mode (+CMGF=0) and sending ok:

+CMSS: <mr>[,<ackpdu>]

Test

Text mode:

The +CMSS command sends a message with the location value <index> from a preferred

message storage <mem2> to the network (SMS-SUBMIT or SMS-COMMAND). If a new recipient

address <da> is given for the SMS-SUBMIT, it shall be used instead of the one stored with the

message. The reference value <mr> is returned to the TE on a successful message delivery.

Optionally (when +CSMS <service> value is 1 and network supports), <scts> is returned. Values

can be used to identify a message upon an unsolicited delivery status report result code.

PDU mode:

The +CMSS command sends a message with the location value <index> from a message storage

<mem2> to the network (SMS-SUBMIT or SMS-COMMAND). If the new recipient address <da> is

given for the SMS-SUBMIT, it shall be used instead of the one stored with the message. The

reference value <mr> is returned to the TE when a message is successfully delivered. Optionally

(when +CSMS <service> value is 1 and network supports), <ackpdu> is returned. Values can be

used to identify a message upon an unsolicited delivery status report result code.

Defined values

<index> integer type; a value in the range of the location numbers supported by the

associated memory

<da> GSM 03.40 TP-Destination-Address Address-Value field in string format; type of

address given by <toda>

<toda> GSM 04.11 TP-Destination-Address Type-of-Address octet in integer format

129

145

unknown/telephony

internal/telephony

<mr> GSM 03.40 TP-Message-Reference in integer format

<scts> GSM 03.40 TP-Service-Centre-Time-Stamp in time-string format

<ackpdu> GSM 03.40 RP-User-Data element of RP-ACK PDU

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10.16+CMMS More messages to send

Parameter Command Syntax

Command

Possible response(s)

+CMMS=[<n>]

+CMMS?

+CMMS: <n>

+CMMS=?

+CMMS: (list of supported <n>s)

Description

The set command controls the continuity of SMS relay protocol link. When the feature is enabled

(and supported by network), multiple messages can be sent much faster as the link is kept open.

The test command returns the supported values as a compound value.

Defined Values

<n>:

disable

keep enabled until the time between the response of the latest message send command

(+CMGS, +CMSS, etc.) and the next send command exceeds 1-5 seconds (the exact value

is up to the ME implementation), then the ME shall close the link and the TA automatically

switches <n> back to 0

enable (if the time between the response of the latest message send command and the next

send command exceeds 1-5 seconds (the exact value is up to the ME implementation), the

ME shall close the link but the TA shall not automatically switch back to <n>=0)

An example of the sending of a default alphabet message in the text mode and a SMS-STATUS-

REPORT is wanted:

AT+CNMI?

(check that status reports are routed to TE)

+CNMI: 2,1,0,1,0

AT+CSMP=32,167,0,0

(status report wanted; otherwise default settings)

AT+CMGS="+358501234567"

> This the first line.

(start editing a message)

(edit first line and press carriage return)

> This is the last line.^Z (edit second line and send message by pressing control-Z)

+CMGS: 10

(success: message reference 10 returned from SMSC)

+CDS: 2,10,"+358501234567",145,"95/07/04/13:12:14+04",

"95/07/04/13:12:20+04",0

(status report of successful message delivery received)

Storing an unsent message in the memory, sending it from there, and deleting it:

AT+CPMS?

(check memory settings)

+CPMS: "ME",4,10,"ME",4,10,"ME",4,10

AT+CMGW="9501231234"

(write message)

> This is the message body^Z

+CMGW: 7

AT+CMSS=7

+CMSS: 12

(index number in storage returned)

(send from storage)

(success: reference value 12 sent from SC)

AT+CMGD=7

(delete message)

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10.17+CMGW Write message to memory

Command

Response

Default

+cms

error

Execute

Text mode (+CMGF=1):

+CMGW=<oa/da>,<tooa/toda>,<stat>

<CR>text is entered<ctrl-Z/ESC>

storing successful:

+CMGW: <index>

text mode:

[,129/145,

"STO UNSENT"]

PDU mode (+CMGF=0):

+CMGW=<length>,<stat><CR>

PDU is given<ctrl-Z/ESC>

+CMGW=?

PDU mode:

[,2]

Test

Text mode:

The +CMGW command stores a message (either SMS-DELIVER or SMS-SUBMIT) to the memory

storage <mem2>. A memory location <index> of the stored message is returned. By default, the

message status will be set to 'stored unsent', but the parameter <stat> also allows other status

values to be given. The entering of text is done similarly as specified in the command Send

Message +CMGS.

NOTE: SMS-COMMANDs and SMS-STATUS-REPORTs can not be stored in the text mode.

PDU mode:

The +CMGW command stores a message to the memory storage <mem2>. A memory location

<index> of the stored message is returned. By default, the message status will be set to 'stored

unsent', but the <stat> parameter also allows other status values to be given.

Text/PDU entering is as specified in ETSI GSM 07.05 /3/. If the SMSC address is not set/restored

during the current session (i.e. +CSCA? returns +CSCA: "",129) and the stored message is SMS-

SUBMIT or SMS-COMMAND, the SMSC address must automatically be read from the SIM/ME

(location 1).

Defined values

<oa>/<da> GSM 03.40 TP-Originating/Destination-Address Address-Value field in

string format; the type of address is given by <tooda>/<toda>

<scts> GSM 03.40 TP-Service-Centre-Time-Stamp in time-string format

<tooa>/<toda>/<tora> GSM 04.11 TP-Originating/Destination-Address Type-of-

Address octet in integer format

129

145

unknown/telephony

internal/telephony

<stat> integer type in the PDU mode (default 0), or string type in the text mode;

indicates the status of a message in the memory:

"REC UNREAD" received unread message (i.e. new message)

"REC READ" received read message

"STO UNSENT" stored unsent message (only applicable to SMs)

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"STO SENT" stored sent message (only applicable to SMs)

"ALL" all messages (only applicable to +CMGL command)

<index> integer type; value in the range of the location numbers

<length> integer type value that indicates the length of the message body <data> in

characters in the text mode (+CMGF=1); or that indicates the length of the actual TP

data unit in octets (i.e. the RP layer SMSC address octets are not counted in the

length) in the PDU mode (+CMGF=0).

10.18+CMGD Delete message

Command

+cms error

Execute

Test

+CMGD=<index>

+CMGD=?

The +CMGD command deletes a message from a preferred message storage location <index>.

10.19+CMGC Send command

Command

Response

Default

+cms

error

Execute

text mode (+CMGF=1):

+CMGC=<fo>,<ct>,<pid>,<mn>,<da>,

<toda><CR>text is entered<ctrl-Z/ESC>

text mode (+CMGF=1) and sending

ok:

+CMGC: <mr>[,<scts>]

text mode:

[2,0,0,

0,"",

129/145]

PDU mode (+CMGF=0):

+CMGC=<length><CR>

PDU is given<ctrl-Z/ESC>

+CMGC=?

PDU mode (+CMGF=0) and

sending ok:

+CMGC: <mr>[,<ackpdu>]

Test

Text mode:

The +CMGC command sends a command message from a TE to the network (SMS-COMMAND).

The entering of text (GSM 03.40 TP-Command-Data) is done as specified in the command Send

Message +CMGS, but the format is fixed to be a sequence of two IRA character long hexadecimal

numbers which Nokia 22 converts into 8-bit octets. The message reference value <mr> is returned

to the TE when a message is successfully delivered. Optionally (when +CSMS <service> value is 1

and network supports), <scts> is returned. Values can be used to identify a message upon an

unsolicited delivery status report result code.

PDU mode:

The +CMGC command sends a command message from a TE to the network (SMS-COMMAND).

The message reference value <mr> is returned to the TE on a successful message delivery.

Optionally (when +CSMS <service> value is 1 and the network supports), <ackpdu> is returned.

Values can be used to identify a message upon an unsolicited delivery status report result code.

Text/PDU entering is as specified in ETSI GSM 07.05. If the SMSC address is not set/restored

during the current session (i.e. +CSCA? returns +CSCA: "",129) it must automatically be read from

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the SIM/ME (location 1). In the PDU mode, all kinds of GSM 03.40 MO TPDUs can be sent with

this command (operation equals +CMGS).

Defined values

<fo> first octet of GSM 03.40 SMS-COMMAND in integer format

<ct> GSM 03.40 TP-Command-Type in integer format

<pid> GSM 03.40 TP-Protocol-Identifier in integer format

<mn> GSM 03.40 TP-Message-Number in integer format

<da> GSM 03.40 TP-Destination-Address Address-Value field in string format; the

type of address is given by <tooda>/<toda>

<toda> GSM 04.11 TP-Destination-Address Type-of-Address octet in integer format

129

145

unknown/telephony

internal/telephony

<mr> GSM 03.40 TP-Message-Reference in integer format

<scts> GSM 03.40 TP-Service-Centre-Time-Stamp in time-string format

<length> in the 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> GSM 03.40 RP-User-Data element of RP-ACK PDU

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List of AT Commands for Nokia 22

11 VOICE COMMANDS

11.1 +VTS DTMF generation

Command

Response

Execute

Test

+VTS=<dtmf>,<dtmf>,...

+VTS=?

(),(),()

The +VTS command sends Dual Tone Multiple Frequency (DTMF) voices during a call. The

dialling command can also be used to send DTMFs (see the D command).

Defined values

<dtmf> DTMF digit: 0 - 9, *, #

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List of AT Commands for Nokia 22

12 MISCELLANEOUS COMMANDS

12.1 V.25ter

12.1.1 A/ Repeat last command line

As first chars of a command line, A/ repeats the previous command line form the Nokia 22

command line buffer. Lowercase (a/) is also accepted.

12.1.2 S47 Force fax class 2/2.0 error correction mode

Command Response

S47=<n>

<n> values

0..2 (default 0)

000..002

Set

Read

S47?

<n>

It is recommended that this command should be used when the fax ECM is implemented. The

command is used to force the ECM on, because fax software is not always capable of enabling it.

Defined values

<n>:

disabled

enabled with 64 byte frames

enabled with 256 byte frames

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13 FAX COMMANDS

The following standard facsimile (+F) command sets are supported by Nokia 22 according to GSM

03.45 facsimile group 3 transparent. The specification of these commands is out of the scope of

this document. The command structures can be found in the referred standards:

- Class 1, TIA-578-A /4/

- Class 2, TIA SP-2388 /6/

- Class 2.0, TIA-592 and ITU-T T.32 /7/

In the classes 2 and 2.0, the Nokia 22 Error supports the correction mode (ECM) with 16k send

and receive buffers. The facsimile commands supported by the Nokia 22 are listed below.

13.1 TIA-578-A

+FCLASS Select, read or test Service Class

+FMI

Report manufacturer identification

Request model identification

Request revision identification

Transmit silence

Receive silence

Facsimile transmit

Facsimile receive

HDLC transmit

HDLC receive

Flow control select

+FMM

+FMR

+FTS

+FRS

+FTM

+FRM

+FTH

+FRH

+FLO

+FPR

+FDD

Serial port rate control

Double Escape Character Replacement

13.2 TIA-592

+FCLASS Select, read or test Service Class

+FMI

+FMM

+FMR

Report manufacturer identification

Request model identification

Request revision identification

Originate command

Answer command

+FDT

+FDR

+FKS

+FIP

+FCC

+FIS

+FCS

+FLI

Data transmission

Data reception

Session termination

Initialise facsimile parameters

DCE capabilities parameters

Current session parameters

Current session results

Local ID strings

+FPI

+FNS

+FLP

+FSP

Local polling ID strings

Non-standard frame FIF octet string

Indicate document to poll

Request to poll

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+FCR

+FBU

+FNR

+FIE

Capability to receive

HDLC frame reporting

Negotiation message reporting

Procedure interrupt enable

Page status

Copy quality checking

Receive quality thresholds

Adaptive answer

DTE phase C response timeout

Call termination status

ECM retry count

Minimum phase C speed

Flow control select

Serial port rate control

Packet protocol control

Data bit order

Phase C received EOL alignment

Format conversion

+FPS

+FCQ

+FRQ

+FAA

+FCT

+FHS

+FRY

+FMS

+FLO

+FPR

+FPP

+FBO

+FEA

+FFC

+FBS

Buffer size

13.3 TIA SP-2388

+FCLASS Select, read or test Service Class

+FMFR

+FMDL

+FREV

Request manufacturer identification

Request model identification

Request product revision identification

Originate a call

Answer a call

+FDT

+FET

+FDR

+FDCC

+FK

Data transmission

Transmit page punctuation

Begin or continue phase C receive data

Establish DCE capabilities

Session termination

+FDIS

+FDCS

+FLID

+FCIG

+FLPL

+FSPL

+FCR

+FBUG

+FECM

+FPTS

+FCQ

Current session parameters

Current session results

Local ID string

Local polling ID string

Indicate document to poll

Request to poll

Capability to receive

Session message reporting

Error correction mode control

Page transfer status

Copy quality checking

+FBADMUL Error threshold multiplier

+FBADLIN Bad line threshold

+FPHCTO DTE phase C response timeout

+FAXERR T.30 session error report

+FCTCRTY ECM retry count

+FMINSP

Minimum phase C speed

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List of AT Commands for Nokia 22

+FTBC

+FRBC

+FBOR

+FREL

+FVRFC

+FDFFC

+FLNFC

+FWDFC

+FAA

Phase C transmit data block size

Phase C receive data block size

Data bit order

Phase C received EOL alignment

Vertical resolution format conversion

Data compression format conversion

Page length format conversion

Page width format conversion

Answer parameter

+FBUF

Buffer size

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List of AT Commands for Nokia 22

14 RESULT CODES

14.1 V.25ter

14.1.1 Basic syntax result codes

OK, ERROR, BUSY, CONNECT, CONNECT <rate>, NO ANSWER, NO CARRIER: See the ITU-T

Recommendation V.25ter, section 5.7.1 and the X, D, A and O commands in this document. Note

that OK can be a result of a successful remotely initiated in-call modification from data to speech

mode, and CONNECT[<rate>] can be a result of a successful remotely initiated in-call modification

from speech to data mode. NO CARRIER can also indicate a remote hang-up of a speech call.

RING: See ETSI GSM 07.07 /2/, section 7.12. See the ITU-T Recommendation V.25ter, section

6.3.4 and the +CRC command in this document. The MT voice calls or alternating voice/data calls

starting with voice shall not result to this indication. When the RING result code is enabled

(+CRC=0), alternating MT voice/fax calls starting with voice shall automatically be switched into the

fax mode by the Nokia 22 (if +CMOD=0). Note that the RING result code is not given for waiting

calls.

14.1.2 +DR Data compression report

Format

Description

+DR: <type>

given when +DR=1; informs about the presence of V.42bis data compression in the established

connection

The +DR intermediate result code, if enabled, is issued after the Error Control Report (+ER) and

before the final result code (e.g. CONNECT).

Defined values

<type>:

NONE

Data compression is not in use

V42B

V42B RD

V42B TD

V.42 bis is in use in both directions

V.42 bis is in use in receive direction only

V.42 bis is in use in transmit direction only

14.1.3 +ILRR DTE-DCE local rate report

Format

Description

+ILRR: <rate>

given when +ILRR=1; informs about the local port rate after connection

establishment

The +ILRR intermediate result code is given after the (possible) +DR result code.

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14.2 De facto

14.2.1 Call repeat restriction result codes

BLACKLISTED and DELAYED. Refer to the dialling command D and GSM 02.07, Annex A.

14.3 GSM 07.07

14.3.1 +CSSI Intermediate supplementary service notification

Format

Description

+CSSI: <code>

given when +CSSN=1 and some supplementary service notification is given

by network during MO call establishment

The +CSSI is the first intermediate result code after the dial command D. This result code is

enabled and disabled with the +CSSN command.

Defined values

<code>:

unconditional call forwarding is active

some of the conditional call forwards are active

call has been forwarded

call is waiting

outgoing calls are barred

incoming calls are barred

CLIR suppression rejected

14.3.2 +COLP Connected line identification report

Format

Description

+COLP: <number>,<type>

Given when +COLP=1 and number received from the network when MO call

established

The +COLP intermediate result code is given after the possible +CSSI result code. This result code

is enabled and disabled with the +COLP command.

Defined values

<number> string type phone number of the format specified by <type>

<type> type of address octet in integer format (refer GSM 04.08 subclause 10.5.4.7):

129

145

unknown/telephony

international/telephony

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14.3.3 +CR Data service report

Format

Description

+CR: REL

ASYNC

given when +CR=1 and data call established; informs about the type of data call being

established

The +CR intermediate result code is given after a possible +COLP result code during a MO data

call setup. During a MT data call setup, this is the first intermediate result code. Note that this

result code shall replace the CARRIER result code (when X5 is set). This result code is enabled

and disabled with the +CR command.

14.3.4 +CRING Distinctive ring

Format

Description

+CRING: <type>

Given when +CRC=1 and incoming MT call (no active or held calls in

ME)

This result code is enabled and disabled with the +CRC command.

NOTE: +CRING replaces the V.25ter RING result code.

Defined values

<type>:

FAX

VOICE

REL ASYNC

ASYNC

facsimile (TS 62)

normal voice (TS 11)

normal data

VOICE/REL ASYNC

voice followed by data (BS 81)

ALT VOICE/REL ASYNC alternating voice/data, voice first (BS 61)

ALT REL ASYNC/VOICE alternating voice/data, data first (BS 61)

ALT VOICE/FAX

ALT FAX/VOICE

alternating voice/fax, voice first (TS 61)

alternating voice/fax, fax first (TS 61)

14.3.5 +CLIP Calling line identification report

Format

Description

+CLIP: <number>,<type>

given when +CLIP=1 and number received from network when MT

call received (no active or held calls in ME)

The +CLIP result code is sent to the TE after every RING (or +CRING) result code. This result

code is enabled and disabled with the +CLIP command.

Defined values

<number> string type phone number of a format specified by <type>

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<type> type of address octet in integer format (refer GSM 04.08 subclause 10.5.4.7):

129

145

unknown/telephony

international/telephony

14.3.6 +CSSU Unsolicited supplementary service notification

Format

Description

+CSSU: <code>[,<index>[,<number>,

<type>]]

given when +CSSN=,1 and some supplementary service notification

is given by the network during a MT call setup or during a voice call;

note that a remote release of a held call is also informed with this

result code

In the MT call setup case, the +CSSU result code is sent to the TE after every possible +CLIP

result code. In the case of a waiting call, this is given after the +CCWA result code but discarded if

the Nokia 22 is in the on-line data state. This result code is enabled and disabled with the +CSSN

command.

Defined values

<index> refer "Closed user group +CCUG"

<code>:

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)

call is being connected (alerting) with the remote party in the alerting

state in an explicit call transfer operation (during a voice call)

call has been connected with the other remote party in an explicit call

transfer operation (number and subaddress parameters may also be present) (during

a voice call or a MT call setup)

<number> string type phone number of a format specified by <type>

<type>

type of address octet in integer format (refer to GSM 04.08, subclause

10.5.4.7):

129

145

unknown/telephony

international/telephony

14.3.7 +CCWA Call waiting

Format

Description

+CCWA: <number>,<type>,<class>

given when +CCWA=1 and incoming MT call is received when

there is active or held calls in the ME discarded if in the on-line

data state

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Description

This command allows the controlling of the Call Waiting supplementary service. 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 the

service is not active for any <class>. The parameter <n> is used to disable/enable the presentation

of an unsolicited result code +CCWA: <number>,<type>,<class>[,<alpha>] to the TE when a call

waiting service is enabled. The command should be abortable when the network is interrogated.

The interaction of this command with other commands based on other GSM supplementary

services is described in the GSM standard.

The test command returns the values supported by the TA as a compound value.

Defined values

<n>

(sets/shows the result code presentation status in the TA):

disable

enable

<mode>

(when the <mode> parameter is not given, the network is not interrogated):

disable

enable

query status

is a sum of integers each representing a class of information (default 7 equals all

classes):

voice (telephony)

data (usually refer to all bearer services; with <mode>=2 this may refer only to some

bearer service)

fax (facsimile services)

also all other values below 128 are reserved by this ETS

<status>:

not active

active

<number>: string type phone number of a calling address in the format specified by <type>

<type>:

type of address octet in integer format (refer GSM 04.08 [8] subclause 10.5.4.7)

<alpha>:

optional string type alphanumeric representation of <number> corresponding to the

entry found in the phonebook; the used character set should be the one selected with

the command Select TE Character Set +CSCS

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14.3.8 +CREG Network registration

Format

description

+CREG: <stat>[,<lac>,<cid>]

when +CREG=1: given when <stat> value changes; given after NO CARRIER if

network lost when on-line

when +CREG=2: given when <stat> value changes and when network cell

(<lac> and <cid>) of the ME changes; given after NO CARRIER if network lost

when on-line

The +CREG result code is enabled and disabled with the +CREG command.

Defined values

<stat>:

not registered, the ME is not currently searching for a new operator to register to

registered, home network

not registered, but ME is currently searching a new operator to register to

registration denied

unknown

registered, roaming

<lac>

string type, two byte location area code in hexadecimal format (e.g. "00C3" equals

193 in decimal)

<ci>

string type, two byte cell ID in hexadecimal format

14.3.9 +CUSD Network initiated unstructured supplementary service data

Format

Description

+CUSD: <m>,<str>,<dcs>

given when +CUSD=1 and network initiated ‘notify’ or ‘request’ USSD

message received; discarded if in the on-line data state

This result code is enabled and disabled with the +CUSD command.

NOTE: only the first ‘request’ message during a network initiated USSD session yields to the

+CUSD unsolicited result code. The rest are information responses of the +CUSD command.

Defined values

<m>:

no further user action required (network initiated USSD-Notify, or no further

information needed after mobile initiated operation)

further user action required (network initiated USSD-Request, or further information

needed after mobile initiated operation)

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<str>

string type USSD-string (when <str> parameter is not given, network is

not interrogated):

- if <dcs> indicates that GSM 03.38 default alphabet is used:

- if the TE character set is other than "HEX" (refer to the Select TE command)

- Character Set +CSCS): the Nokia 22 converts the GSM alphabet into current TE

character set according to the rules of GSM 07.05, Annex A

- if the TE character set is "HEX": the Nokia 22 converts each 7-bit character of the

GSM alphabet into two IRA character long hexadecimal numbers (e.g. character Π

(GSM 23) is presented as 17 (IRA 49 and 55))

- if <dcs> indicates that an 8-bit data coding scheme is used: the Nokia 22 converts

each 8-bit octet into two IRA character long hexadecimal numbers (e.g. octet with

integer value 42 is presented to the TE as two characters 2A (IRA 50 and 65))

<dcs> GSM 03.38 Cell Broadcast Data Coding Scheme in the integer format (default

14.3.10

+CME ERROR Mobile equipment error

Format

Description

+CME ERROR: <err>

given instead of ERROR when +CMEE=1 or =2 and error is related to the ME or network

operation

Defined values

<err> see Error values section

14.4 GSM 07.05

14.4.1 +CMTI New SMS-DELIVER indication

Format

Description

+CMTI: <mem>,<index>

when +CNMI=0: indications are buffered into the Nokia 22

when +CNMI=1: in the on-line data state, indications are discarded; in the

command mode they are forwarded directly to the TE

when +CNMI=2: in the on-line data state, indications are buffered into the Nokia

22; in the command mode they are forwarded directly to the TE