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MultiModemZPX User Guide
Contents
Chapter 1: Introduction
Introduction ............................................................................................................................. 2
Product Description................................................................................................................ 2
What Is in Your Modem Package? ....................................................................................... 2
Chapter 2: Installation
Introduction ............................................................................................................................. 4
What You Will Need .............................................................................................................. 4
Safety Warnings ...................................................................................................................... 4
Step 1: Install the MultiModemZPX in your Computer ................................................... 5
Step 2: Make the External Connections ............................................................................... 6
Line Connection ............................................................................................................... 6
Phone Connection............................................................................................................ 6
Microphone Connection ................................................................................................. 7
Sound Card and Speaker Connections ......................................................................... 7
Step 3: Install the Modem Driver ......................................................................................... 8
Windows 95 ...................................................................................................................... 8
Windows 98/Me .............................................................................................................. 8
Windows NT 4.0 ............................................................................................................ 11
Windows 2000 ................................................................................................................ 13
Step 4: Configure the Modem for Your Country ............................................................. 15
The Global Wizard Utility ............................................................................................ 15
AT Commands ............................................................................................................... 15
Step 5: Install and Configure Your Software .................................................................... 16
Chapter 3: Operation
Introduction ........................................................................................................................... 18
Configuring the Modem ...................................................................................................... 18
PhoneTools Features ............................................................................................................ 18
Connecting to the Internet ................................................................................................... 18
Dial-Up Networking ............................................................................................................ 19
Sending a Fax ........................................................................................................................ 19
References .............................................................................................................................. 20
Chapter 4: AT Commands, S-Registers & Result Codes
Introduction ........................................................................................................................... 22
AT Commands ...................................................................................................................... 23
S-Registers.............................................................................................................................. 40
Result Codes .......................................................................................................................... 43
Chapter 5: Remote Configuration
Introduction ........................................................................................................................... 46
Basic Procedure ..................................................................................................................... 46
Setup ....................................................................................................................................... 46
To Change the Setup Password ................................................................................... 46
To Change the Remote Escape Character .................................................................. 47
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Contents
Chapter 6: Solving Problems
Introduction ........................................................................................................................... 49
The Modem Does Not Respond to Commands ............................................................... 49
The Modem Cannot Connect When Dialing .................................................................... 50
The Modem Disconnects While Online ............................................................................. 51
The Modem Cannot Connect When Answering .............................................................. 52
File Transfer Is Slower Than It Should Be ......................................................................... 52
Data Is Being Lost ................................................................................................................. 52
There Are Garbage Characters on the Monitor ................................................................ 53
The Modem Doesn’t Work with Caller ID ........................................................................ 53
Fax and Data Software Can’t Run at the Same Time ...................................................... 53
The Voice Functions Don’t Work ....................................................................................... 53
Voice Mail Test............................................................................................................... 54
Loopback Test ................................................................................................................ 54
Speakerphone Test ........................................................................................................ 54
Appendix A: Regulatory Compliance
FCC Part 68 Telecom ............................................................................................................ 56
FCC Part 15 ............................................................................................................................ 57
Fax Branding Statement....................................................................................................... 57
Canadian Limitations Notice .............................................................................................. 58
Industry Canada ................................................................................................................... 58
Protection Against Contact with TNV Circuit.................................................................. 58
EMC, Safety, and R&TTE Directive Compliance ............................................................. 59
New Zealand Telecom Warning Notice ............................................................................ 59
South African Notice ............................................................................................................ 60
International Modem Restrictions...................................................................................... 60
Appendix B: Technical Specifications.................................................................................. 61
Appendix C: Loopback Tests
Introduction ........................................................................................................................... 63
Local Analog Loopback Test (V.54 Loop 3) ...................................................................... 63
Remote Digital Loopback Test (V.54 Loop 2) ................................................................... 64
Local Digital Loopback Test (V.54 Loop 2) ....................................................................... 65
Appendix D: Warranty, Service, and Technical Support
Limited Warranty ................................................................................................................. 67
Online Warranty Registration............................................................................................. 67
Service .................................................................................................................................... 67
U.S. and Canadian Customers..................................................................................... 67
International Customers (outside U.S.A. and Canada) ........................................... 68
International Distributors ............................................................................................. 68
Technical Support ................................................................................................................. 69
Internet Sites .......................................................................................................................... 69
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Appendix E: Upgrading the Modem
Introduction ........................................................................................................................... 70
Upgrade Overview ............................................................................................................... 70
Step 1: Identify the Modem Firmware............................................................................... 70
Step 2: Identify the Current Firmware Version ................................................................ 71
Step 3: Download the Upgrade File ................................................................................... 71
Step 4: Extract the Upgrade Files........................................................................................ 71
Step 5: Document and Clear Your Stored Paramenters .................................................. 71
Step 6: Upgrade the Modem’s Firmware .......................................................................... 72
Step 7: Restore Your Parameters ........................................................................................ 72
Appendix F: Installing Under Linux
Introduction ........................................................................................................................... 73
Standard Linux Serial Port Definitions.............................................................................. 73
Installation ............................................................................................................................. 73
Setup ....................................................................................................................................... 73
Using the Terminal Program Minicom to Verify Operation .......................................... 74
Using the Modem to Call the Internet ............................................................................... 74
Calling the ISP ....................................................................................................................... 75
Answering Calls.................................................................................................................... 75
Appendix G: Installing Under SCO OpenServer
Introduction ........................................................................................................................... 76
Installation ............................................................................................................................. 76
Setup ....................................................................................................................................... 76
Index....................................................................................................................................................................... 77
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1
Introduction
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MultiModemZPX User Guide
1 Introduction
Introduction
Congratulations on your purchase of the MultiModemZPX. You have acquired one
of the finest internal V.92 data/fax/voice modems available today from one of the
world’s oldest modem manufacturers: Multitech Systems, Inc. This user guide will
help you to install, configure, test, and use your modem.
Product Description
The MultiModemZPX is a full-featured internal data/fax/voice modem designed
for Pentium computers in Windows Plug and PlayTM environments. Its half-length
card can be plugged into any available PCI slot.
The MultiModemZPX provides high-speed data transfer and fax capabilities for small
businesses, telecommuters, and SOHO users. Its compatibility with the new ITU-T V.92
protocol provides quick connections, downstream transmissions at speeds up to 56K
bps*, and upstream transmissions at speeds up to 48K bps when connected to V.92-
compatible Internet service providers. Transmissions between the MultiModemZPX
and other client modems are limited to 33.6K bps, as are upstream transmissions to
non-V.92-compatible ISPs and downstream transmissions that are converted more
than once on the telephone network.
The MultiModemZPX also supports “Super G3” ITU-T V.34 fax communications at
speeds up to 33.6K bps with Class 2.1 fax commands.
Modem features include Plug and Play operation, callback security, and remote
configuration. In standard mode, you can store up to four command lines or
telephone numbers of up to 40 characters each in the modems’ nonvolatile memory.
In callback security mode, you can store up to 30 passwords and dialing strings.
Other modem capabilities include voice operation using the included software,
AT&T calling card tone detection, pulse and tone dialing, adaptive answer, DTR
dialing, U.S. Caller ID reporting, two-wire leased-line operation, 11-bit operation,
V.42 error correction, and V.42bis and V.44 data compression.
What Is in Your Modem Package?
Your modem package has several components. Make sure you have them all before
trying to operate your modem. The MultiModemZPX package should include:
An MT5634ZPX-PCI-V92 data/fax/voice modem
An RJ-11 telephone cable
A printed Quick Start Guide
A MultiModemZPX CD containing the modem driver and this User Guide
A CD containing data communications and other programs
If any item is missing, please contact Multi-Tech Systems or your dealer/distributor
(see Appendix D for information on contacting Multi-Tech via telephone, fax, or the
Internet).
*Though this modem is capable of 56K bps download performance, line impairments, public
telephone infrastructure, and other external technological factors currently prevent maxi-
mum 56K bps connections.
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Installation
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2 Installation
Introduction
This chapter shows you step-by-step how to set up your MultiModemZPX data/fax/
voice modem and make your first calls.
What You Will Need
Before starting, please make sure you have everything you need:
We supply
You supply
An MT5634ZPX-PCI-V92 data/fax/voice modem
An RJ-11 telephone cable
A printed Quick Start Guide
An installation CD containing a modem driver and this User Guide
A CD containing data communications and other programs
A 100-MHz or faster Pentium personal computer with an unused PCI expansion
slot. For video conferencing, we recommend a 166-MHz or faster computer.
Windows 95, 98, NT, 2000, or Linux (2.2.x kernal) operating system installed
A CD-ROM drive
Tools to open your computer
The computer’s manual
A nearby telephone line jack
A 3.58mm (9/64-inch) plug male-to-male stereo patch cord (optional)
An external speaker or headphone (optional)
An external microphone (optional)
Safety Warnings
• Use this product only with UL- and CUL-listed computers (U.S.A.)
• To reduce the risk of fire, use only 26 AWG (.41mm) or larger telephone wiring.
• Never install telephone wiring during a lightning storm.
• Never install a telephone jack in a wet location unless the jack is specifically
designed for wet locations.
• Never touch uninsulated telephone wires or terminals unless the telephone line
has been disconnected at the network interface.
• Use caution when installing or modifying telephone lines.
• Avoid using a telephone during an electrical storm; there is a risk of electrical
shock from lightning.
• Do not use a telephone in the vicinity of a gas leak.
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2 Installation
Step 1: Install the MultiModemZPX in your Computer
Figure 2-1. The MultiModemZPX.
Installing the MultiModemZPX requires you to open your computer. Please consult
your computer manual in addition to the following instructions.
1. Turn off the computer and unplug it. Failure to do so may result in damage to
both the MultiModemZPX and the computer. Do not turn on the computer until
the instructions tell you to do so.
2. Remove the cover from the computer as instructed in the computer manual.
3. Select an empty PCI expansion slot. Remove the expansion slot cover and save
the retaining screw.
4. Before handling the MultiModemZPX, discharge static in your body by touching
a metal piece of the computer chassis. Carefully remove the MultiModemZPX
from its antistatic bag, handling it only by the mounting bracket and edges. Do
not touch the gold-plated connectors along the bottom edge.
5. Place the MultiModemZPX directly above the expansion slot and gently, but
firmly, push it into the connector until the card’s retaining bracket is flush
against the computer chassis.
6. Fasten the retaining bracket to the computer chassis with the screw saved in step 3.
7. Replace the cover of the computer.
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Step 2: Make the External Connections
Now connect the MultiModemZPX to the telephone line and, optionally, to your
telephone. For voice mail or speakerphone use, you can also connect it to a micro-
phone and an external speaker, headphone, or sound card. The microphone can be
used for recording answering machine messages or for speakerphone use. The
speaker or headphone can be used for playing back messages or as a speakerphone.
PHONE
PHONE
LINE
LINE
MIC IN
MIC
LINE OUT
LINE
Figure 2-2. MT5634ZPX-PCI-V92 connectors.
Line Connection
Plug one end of the provided telephone cable into the modem’s LINE jack, and the
other end into a telephone wall jack. This is the only required connection.
Note: The LINE jack is not interchangeable with the PHONE jack. Do not plug the
phone into the LINE jack or the line cable into the PHONE jack.
Note: The Federal Communications Commission (FCC) and Industry Canada
impose certain restrictions on equipment connected to public telephone systems.
For more information, see Appendix A.
Phone Connection
If you wish to connect a telephone to the same line as the modem, plug it into the
modem’s PHONE jack.
Note: The PHONE jack is not interchangeable with the LINE jack. Do not plug the
phone into the LINE jack or the line cable into the PHONE jack.
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Microphone Connection
For voice mail or speakerphone applications, plug an unamplified microphone into
the MIC jack. The microphone should have a stereo 3.58mm (9/64-inch) mini plug.
Do not use a monophonic microphone.
Sound Card and Speaker Connections
For voice mail or speakerphone applications, use a 3.58mm (9/64-inch) plug male-
to-male stereo patch cord to connect the LINE OUT jack on the modem to the LINE
IN jack on your sound card. If your sound card does not have a LINE IN jack, use its
MIC jack.
This will allow you to hear modem activity whether it is originating or answering a
call, or playing a recorded message. If you do not have a sound card, you can plug
an amplified speaker into the LINE OUT jack.
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2 Installation
Step 3: Install the Modem Driver
If you use Windows 95 or newer, you must install the modem driver. The modem
driver tells Windows how to control the modem. If you use a Linux operating sys-
tem, please see Appendix F for installation instructions. If you use the SCO OpenS-
erver operating system, please see Appendix G.
Windows 95
1. After installing the MultiModemZPX into your computer, turn the computer on
and allow Windows 95 to start. As the computer starts, it automatically detects
the new modem, and the New Hardware Found wizard appears.
2. Insert the MultiModemZPX CD into your computer’s CD-ROM drive, and then
click Next. Windows begins searching for the driver.
3. When Windows says it has found an updated driver for the Multi-Tech
MT5634ZPX-PCI-V92, click Finish to complete the modem driver installation.
4. When Windows says it has found the driver for the Voice Modem, click Next.
5. When prompted, click Finish to complete the installation.
6. After completing the hardware and driver installation, you must configure your
modem for country-specific operation. See “Step 4: Configure the Modem for
Your Country” for configuration instructions.
7. After setting up your modem for country-specific operation, you’ll want to con-
figure your communications software or Windows Dial-Up Networking. Infor-
mation about configuring your communications software can be found in Step 5.
Windows 98/Me
1. After installing the MultiModemZPX into your computer, turn the computer on
and allow Windows to start. As the computer starts, it automatically detects the
new modem, and the New Hardware Found wizard appears.
2. Click Next to begin the installation.
3. When the wizard asks, “What do you want Windows to do?” Select Search for
the best driver for your device, and then click Next.
4. When the wizard says, “Windows will search for new drivers in its driver data-
base on your hard drive and in any of the following selected locations,” insert
the MultiModemZPX CD into your computer’s CD-ROM drive, and then select
CD-ROM drive. Click Next.
5. When prompted, select the driver for the Multi-Tech MT5634ZPX-PCI-V92, and
then click Next.
6. If the Insert Disk dialog box says that the file 56ZPX.CAT cannot be found, click
Skip File to continue the installation.
7. When prompted, click Finish to complete the modem driver installation.
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2 Installation
8. When the Add New Hardware wizard says it will search for new drivers for the
Wave device for the voice modem, click Next.
9. Select Search for the best driver for your device, and then click Next.
10. Select CD-ROM drive, and then click Next.
11. When Windows says it has found the driver for the voice modem, click Next to
continue.
12. When prompted, click Finish to complete the installation.
13. After completing the hardware and driver installation, you must configure your
modem for country-specific operation. See “Step 4: Configure the Modem for
Your Country” for configuration instructions.
14. After setting up your modem for country-specific operation, you’ll want to con-
figure your communications software or Windows Dial-Up Networking. Infor-
mation about configuring your communications software can be found in Step 5.
Changing the Windows 95/98/Me COM port assignment
Unlike an external modem, the MultiModemZPX contains its own serial port. When
Windows detects the MultiModemZPX, it assigns the next available COM port to it.
Since COM1 through COM4 are standard serial ports in Windows computers, Win-
dows typically assigns COM5 to the modem’s serial port.
If Windows assigns the modem to a COM port higher than 4, then certain legacy soft-
ware applications will not recognize the modem. To correct this situation, Multi-Tech
Systems provides two additional driver files on the MultiModemZPX CD that may
be used to reassign the modem to either COM3 or COM4. To reassign the COM port:
1. Insert the MultiModemZPX CD into your computer’s CD-ROM drive.
2. Click Start | Settings | Control Panel. Double-click the System icon.
3. Select the Device Manager tab, and double-click the Modem icon.
4. Double-click MT5634ZPX-PCI-V92 to go to the Properties dialog box.
5. Select the Driver tab. Click the Update Driver button and follow the Update
Device Driver wizard prompts. The wizard requests you to specify the path of
the new driver. If you’d like to reassign your modem to COM3, type D:\COM-
3\pcicom3.inf, where D: is the drive letter associated with your computer’s CD-
ROM drive. If you want to reassign your modem to COM4, type
D:\COM-4\pcicom4.inf and continue with the wizard’s instructions.
6. When the wizard completes its installation, your modem should be reassigned
to the new COM port.
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Verifying the Windows 95/98/Me Configuration
Windows assigns an interrupt request (IRQ) number for your modem. Because the
number of IRQs is limited, a computer with several accessories may not have an
available IRQ for your new modem. In that case, you may have to decide which of
your other accessories you can modify or do without.
Be aware that resource settings should be changed only by users with expert knowl-
edge of computer hardware and hardware configurations.
Note: Changing resource settings improperly can disable your hardware and can
cause your computer to malfunction or be inoperable.
Use the following procedure to check the assignments Windows has made for your
modem:
1. Click Start | Settings | Control Panel. Double-click the System icon.
2. When the System Properties dialog box appears, click the Device Manager tab.
A list of device types appears.
3. Double-click Modem to display a list of modems installed in your computer.
4. Double-click Multi-Tech Systems MT5634ZPX-PCI-V92. The Modem Proper-
ties dialog box appears.
5. Click the Resources tab and note the Conflicting Device list. If there is a conflict
between your modem and another device in your computer, the information ap-
pears here. For help in resolving a conflict, click Start | Help, and then search
the Help index for the Hardware Conflict Troubleshooter. When finished, click
OK to exit the System Properties dialog box.
6. In Control Panel, double-click the Modems icon.
7. When the Modems Properties dialog box appears, click the Diagnostics tab. A
list of ports and devices appears.
8. Highlight the COM port associated with the MT5634ZPX-PCI-V92. Click More
Info. Clicking More Info causes Windows to send commands to and receive re-
sponses from the modem. The system also displays information about the mo-
dem’s COM port.
9. Write down the modem’s port, interrupt, address, and highest speed. You will
need this information to configure any legacy (nonWindows) communications
software you install.
Port: COM ______ Interrupt: _______ Address: _________ Speed: _________
10. Click the General tab. Select Multi-Tech Systems MT5634ZPX-PCI-V92, and
click Properties to review the modem’s default communications settings. Do not
change any settings unless you have special requirements.
11. Click Dialing Properties and review your dialing settings. If you are required to
dial 9 to get an outside line, type 9 in the local and long distance boxes. If you
have Call Waiting service, disable Call Waiting to prevent it from interrupting a
data or fax transmission. When you are finished, click OK to exit the dialog box.
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Windows NT 4.0
Before you begin a Windows NT installation, make sure Windows NT Service Pack 3
or newer is installed on the computer. Also, to add and remove devices you must be
logged on with Administrator privileges.
1. After installing the MultiModemZPX modem into your computer, turn the com-
puter on and allow Windows NT to start.
2. Insert the MultiModemZPX CD into your computer’s CD-ROM drive.
3. When the MT5634ZPX-PCI Autorun menu appears, choose Windows NT Setup.
4. The Multi-Tech Systems NT4 PCI Modem Setup dialog box shows the COM
port assigned to the modem. You can change the COM port assignment by click-
ing the down arrow and selecting an unused COM port.
5. Now click Install. The MT5634ZPX-PCI-V92 driver is installed on the selected
COM port.
6. When a message asking you to restart the computer appears, remove the CD
from the CD-ROM drive, and then click OK to restart the computer.
Remote Access Setup
Before you can use your modem, Dial-Up Networking must be installed, and the
new modem must be selected as the Remote Access Service device.
If Dial-Up Networking is not installed
1. Double-click the My Computer icon, and then double-click the Dial-Up Net-
working icon. If Dial-Up Networking is not installed, you will see an Install
button in the Dial-Up Networking dialog box.
2. Insert the Windows NT 4.0 compact disc into the CD-ROM drive.
3. Click Install in the Dial-Up Networking dialog box.
4. In the Add RAS Device dialog box, choose Multi-Tech Systems MT5634ZPX-
PCI-V92, and then click OK.
5. In the Remote Access Setup dialog box, click Configure.
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6. In the Configure Port Usage dialog box, select Dial out only, Receive calls
only, or Dial out and receive calls, depending upon how the phone line will be
used. Click OK.
7. In the Remote Access Setup dialog box, click Network.
8. In the Network Configuration dialog box, make sure that only TCP/IP is select-
ed, and then click OK.
9. If there is a network interface card that does not have TCP/IP bound to it, the
Microsoft TCP/IP Properties window appears. Click Cancel to close the window.
10. Click Continue, and then click Restart to finish the installation.
11. After completing the hardware and driver installation, you must configure your
modem for country-specific operation. See “Step 4: Configure the Modem for
Your Country” for configuration instructions.
12. After setting up your modem for country-specific operation, you’ll want to con-
figure your communications software or Windows Dial-Up Networking. Infor-
mation about configuring your communications software can be found in Step 5.
If Dial-Up Networking is already installed
1. Double-click the My Computer icon, then the Control Panel icon, and then the
Network icon.
2. In the Network dialog box, click the Services tab, and then double-click Remote
Access Service.
3. In the Remote Access Setup dialog box, a list of modems is displayed. Click Add.
4. In the Add RAS Device dialog box, choose Multi-Tech Systems MT5634ZPX-
PCI-V92, and then click OK.
5. In the Remote Access Setup dialog box, click Configure.
6. In the Configure Port Usage dialog box, select Dial out only, Receive calls
only, or Dial out and receive calls, depending upon how the phone line will be
used. Click OK.
7. In the Remote Access Setup dialog box, click Continue.
8. The system processes the new information and the Network Settings Change
dialog box appears. Select Yes to restart your computer.
9. After completing the hardware and driver installation, you must configure your
modem for country-specific operation. See “Step 4: Configure the Modem for
Your Country” for configuration instructions.
10. After setting up your modem for country-specific operation, you’ll want to con-
figure your communications software or Windows Dial-Up Networking. Infor-
mation about configuring your communications software can be found in Step 5.
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Verifying the Windows NT Configuration
To verify your modem configuration in Windows NT:
1. Click Start | Settings | Control Panel. Double-click Modems.
2. The Modem Properties dialog box appears, showing the COM port associated
with the modem.
3. Click Properties. View the General tab to display information about modem
speed. Click the Connection tab to see information about connection and call
preferences.
You can also view configuration information under NT’s Remote Access Services, by
clicking Start | Settings | Control Panel. Double-click the Network tab. Click the
Services tab, Highlight Remote Access Services and then click Properties. The list
of modems and associated COM ports appears.
Windows 2000
1. After installing the MultiModemZPX into your computer, turn the computer on
and allow Windows 2000 to start. As the computer boots, it automatically de-
tects the new modem, and the Found New Hardware wizard appears.
2. Click Next to begin the driver installation.
Note: If a Digital Signature Not Found message appears at any point during the
installation process, select Yes to continue the installation.
3. In the Install Hardware Device Drivers dialog box, select Search for a suitable
driver for my device, and then click Next.
4. In the Driver Files Search Results dialog box, select CD-ROM drives.
5. Insert the MultiModemZPX CD into the CD-ROM drive, and then click Next.
6. When the Driver Files Search Results dialog box says Windows has found a
driver, click Next.
7. When the Completing the Found New Hardware Wizard dialog box says Win-
dows has finished installing the software for this device, click Finish.
8. After completing the hardware and driver installation, you must configure your
modem for country-specific operation. See “Step 4: Configure the Modem for
Your Country” for configuration instructions.
9. After setting up your modem for country-specific operation, you’ll want to con-
figure your communications software or Windows Dial-Up Networking. Infor-
mation about configuring your communications software can be found in Step 5.
Verifying the Windows 2000 Configuration
To verify your modem adapter configuration in Windows 2000:
1. Click Start | Settings | Control Panel. Double-click Phone and Modem Properties.
2. In the Phone and Modem Properties dialog box, click the Modems tab.
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2 Installation
3. In the Modem tab, select Multi-Tech Systems MT5634ZPX-PCI-V92, and then
click the Properties button to display information about your modem settings.
• Extra AT commands (see Chapter 4) may be entered in the Extra initializa-
tion commands field.
• To change port assignments, click Advanced Port Settings. Use the COM
Port number list to select an unused COM port.
Windows 2000 automatically configures Plug and Play devices such as the Multi-
ModemZPX to work properly with other devices installed in your computer.
If you are using non-Plug and Play devices in your computer and a resource conflict
occurs that requires manual resource configuration, consult the instruction manual
supplied with the device in question.
Be aware that resource settings should be changed only by users with expert knowl-
edge of computer hardware and hardware configurations. Changing resource set-
tings improperly can disable your hardware and can cause your computer to
malfunction or become inoperable.
Viewing system resources
1. Click Start | Settings | Control Panel.
2. Double-click System, and then click the Hardware tab.
3. Click Device Manager.
4. Click the Action tab to display information about Device Manager options.
Removing Previous Modems from Windows 2000
1. To remove a modem adapter from Windows 2000, click Start | Settings | Con-
trol Panel. Double-click Add/Remove Hardware.
2. The Add/Remove Hardware Wizard displays. Click Next.
3. When the Choose Hardware Task dialog box displays, select Uninstall/Unplug
a device.
4. In the Choose a Removal Task dialog box, select Uninstall a device, and then
click Next.
5. The Installed devices on your computer dialog box provides a list of devices
installed on your computer. Select the device you want to uninstall from the list.
Click Next.
6. In the Uninstall a Device dialog box, verify that the correct device is highlighted,
and then select Yes. Click Next to continue.
7. When the Completing the Add/Remove Hardware dialog box indicates Win-
dows has successfully uninstalled the device, click Finish.
Note: If you are removing a Plug and Play device from Windows 2000, you must
physically remove the device from the computer or Windows 2000 will request
driver installation each time the system starts.
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Step 4: Configure the Modem for Your Country
Before you use your modem, you must configure it for the country in which it will
be used. You must also do this if you move the modem to another country after it has
been configured for the first country. You can use one of two configuration methods:
the Global Wizard utility or AT commands.
The Global Wizard Utility
The Global Wizard configuration utility is recommended for computers running
Windows 95 or newer.
1. Insert the MultiModemZPX CD into the CD-ROM drive. The Autorun menu
should appear.
2. Click Initial Setup and Country Selection.
3. In the Global Wizard dialog box, select either Run from CD or Install on your
PC. Choose the former to configure your modem without installing the Global
Wizard on your computer. Choose the latter to install the Global Wizard on you
computer and Start menu.
4. Click Next. The Global Wizard searches for your modem and identifies it.
5. Click Next.
6. Select the country in which the modem will be used, and then click Next.
7. Review your choice of country. If it is correct, click Next to configure the modem.
8. When Global Wizard announces that the parameters have been set, click Finish
to exit.
AT Commands
Non-Windows users can configure the modem using AT commands. You must enter
these commands in your communication program’s terminal window.
1. Run your favorite communication program, and open the program’s terminal
window.
2. To configure the modem for a specific country, type AT%T19,0,nn, where nn is
the country code in hexadecimal notation, and then press Enter.
3. To verify the change, type ATI9, and then press Enter. The country code is dis-
played in decimal format.
Example of country, command and result codes
Country
AT command
Result code
(hexadecimal)
AT%T19,0,34 (default)
AT%T19,0,10
(decimal)
52
16
Euro/NAM
Japan
A complete list of country codes can be found on the Multi-Tech Web site at
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2 Installation
Step 5: Install and Configure Your Software
You may use either the communication program included with your modem or a
third-party program. Communication programs designed for Windows 95 and
above normally do not need to be manually configured, since they obtain configura-
tion information from Windows. Communication programs designed for DOS and
other operating systems, however, may need to be manually configured to work
with your modem. Though each communication program is different, the following
procedure should work with most of them.
1. Install and run your communication program.
2. Find the dialog box or menu that lets you select your modem. (In Windows
HyperTerminal select File | Properties | Phone Number; in PhoneTools select
Configure | General Configuration | Communication | Change Modem.
3. Choose your modem from the program’s modem list. If it isn’t listed, choose a
generic modem and modify the settings as necessary.
4. Change the modem initialization string, if necessary. The factory default config-
uration works well for most purposes. To load the factory default configuration,
use AT&F. To load a custom configuration that was saved using the &W com-
mand, use ATZ. If you do not want the modem to always answer the phone,
add S0=0 to the string. To use Caller ID with the modem, add S0=2 to the string
(Caller ID information is sent between the first and second rings, so the phone
must ring at least twice befor the modem picks up the line). Depending on the
software, you might have to end the string with a carriage return character (^M).
Note: To change the modem’s default configuration, type new commands in the
communication program’s terminal window, adding the &W command to store
them in the modem’s nonvolatile memory. For instance, to create a default configu-
ration that turns off autoanswer, type AT&FS0=0&W. The new configuration loads
automatically whenever the modem is turned on or receives the ATZ command.
5. Select the port the modem is connected to.
6. Select your serial port speed. This can be labeled “maximum speed,” “DTE
bps,” or “baud rate.” Ideally, if you use data compression, you should set your
serial port baud rate to four to six times the modem’s maximum transmission
speed or faster; however, few files can be compressed enough to require speeds
that high, and not all serial ports can handle speeds that high.
7. If the communication program has an autobaud selection, make sure it is disabled.
Autobaud applies only to older modems, and can cause problems if enabled.
8. If the program allows you to edit the no-connect messages (NO CARRIER,
BUSY, NO ANSWER, NO DIALTONE), make sure there is no space between
DIAL and TONE in NO DIALTONE.
9. Refer to the program manual or online help for other configuration choices. In
most cases you can accept the default values.
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Operation
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3 Operation
Introduction
Your Multi-Tech modem operates under the control of a communication pro-
gram, such as the PhoneTools program included with the modem. It also can op-
erate under other general-purpose data communication programs, such as Windows
HyperTerminal. For information on how to use the modem with the communication
program of your choice, please refer to the program’s documentation.
Configuring the Modem
Your modem normally is configured either through Windows or through the com-
munication program you are using. The default settings work best for most purposes.
For help in setting up your communication program, see “Step 5: Install and Config-
ure Your Software” in Chapter 2.
You can also configure your modem directly by typing AT commands in the termi-
nal window of a communication program. See Chapter 4 for descriptions of the mo-
dem’s AT commands.
PhoneTools Features
Using the PhoneTools communications program included with your modem, you can:
Upload and download data files.
Send faxes at preset times.
Store incoming voice messages and faxes.
Retrieve stored messages, faxes, and telephone numbers (telephone number re-
trieval requires Caller ID service from your phone company).
Print a received fax.
For detailed information about operating your modem under PhoneTools, please
refer to the PhoneTools online documentation.
Connecting to the Internet
Your Multi-Tech modem is your gateway to the Internet and the World Wide Web.
To access the Internet and Web via your modem, you must establish a dial-up
account with an Internet service provider (ISP). To locate an ISP near you, look in a
local directory or computer publication. Your ISP should provide you with the fol-
lowing information:
User name (also called user ID)
Password
Access number (the number you call to connect to the server)
Host name and/or domain name
Domain Name Server (DNS) server address
If, besides the Web, you use the Internet for e-mail and newsgroups, your ISP should
also provide you with the following information:
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3 Operation
E-mail or POP mail address
POP server address
Mail or SMTP address
News or NNT server address
Dial-Up Networking
Before you can connect to the Internet, you must set up a remote-node client pro-
gram. The Windows version is called Dial-Up Networking. Dial-Up Networking es-
tablishes your connection to the ISP’s server, which is the shared computer that
manages calls from clients (your computer) to the Internet. Most, if not all, Windows
browsers start Dial-Up Networking automatically when you open them.
For instructions on how to set up Dial-Up Networking, consult your ISP or your op-
erating system’s online help or printed documentation. Many ISPs include with their
service a program that will install and configure Dial-Up Networking automatically
for you.
Sending a Fax
You can use the PhoneTools program, which is included with your modem, to send and
receive faxes directly from your computer. The following procedure uses print capture,
which enables you to fax a document directly from the Windows application in
which you created it without opening PhoneTools.
1. Install PhoneTools if it is not already installed.
2. Create a document in a Windows application, such as a word processor, graphic
editor, or spreadsheet. To fax the document, keep the document open and select
the Print command from the File menu.
3. Select CAPTURE FAX BVRP as the printer driver, and then click OK. The Send
Fax wizard appears.
4. In the Recipient section, type the required information or extract it from the
Phone Book by clicking
.
5. In the Template section, optionally select a cover page and type a cover message.
6. Select the document to be sent. The default file when sending from within a Win-
dows application is Capture.dgr.
7. Select the date and time to send the document, if you do not want to send it
immediately.
8. Click Finish to start the transmission.
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3 Operation
References
The World Wide Web is an excellent source of information about modems in general
and modem installation, configuration, and troubleshooting in particular. The following
Web sites are good places to start:
Costmo’s Other Resources Page:
Data Communications FAQ:
Modemsite.com:
Vee90.net:
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4
AT Commands,
S-Registers &
Result Codes
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4 AT Commands, S-Registers, and Result Codes
Introduction
AT commands are used to control the operation of your modem. They are so called
because each command must be preceded by the characters AT to get the ATtention
of the modem.
AT commands can be issued only when the modem is in command mode or online
command mode. The modem is in command mode whenever it is not connected to
another modem. The modem is in data mode whenever it is connected to another mo-
dem and ready to exchange data. Online command mode is a temporary state in which
you can issue commands to the modem while connected to another modem. To put
the modem into online command mode from data mode, you must issue an escape
sequence (+++) followed immediately by the AT characters and the command, e.g.,
+++ATH to hang up the modem. To return to data mode from online command
mode, you must issue the command ATO.
To send AT commands to the modem you must use a communications program,
such as HyperTerminal or the PhoneTools communications program included with
your modem. You can issue commands to the modem either directly, by typing
them in the terminal window of the communications program, or indirectly, by con-
figuring the operating system or communications program to send the commands
automatically. Fortunately, communications programs make daily operation of mo-
dems effortless by hiding the commands from the user. Most users, therefore, need
to use AT commands only when reconfiguring the modem; for example, to turn au-
toanswer on or off.
The format for entering an AT command is ATXn, where X is the command and n is
the value for the command, sometimes called the command parameter. The value is
always a number. If the value is zero, you can omit it from the command; thus,
AT&W is equivalent to AT&W0. Most commands have a default value, which is the
value that is set at the factory. The default values are shown in the “AT Commands”
section, which begins on the next page.
You must press the ENTER key (abbreviated <CR>, for carriage return) to send the
command to the modem. Any time the modem receives a command, it sends a re-
sponse known as a result code. The most common result codes are OK, ERROR, and
the CONNECT messages that the modem sends to the computer when it is connect-
ing to another modem. For a table of valid result codes, see “Result Codes” at the
end of this chapter.
You can issue several commands in one line, in what is called a command string. The
command string begins with AT and ends when you press ENTER. Spaces to separate
the commands are optional; they are ignored by the command interpreter. The most
familiar command string is the initialization string, which is used to configure the
modem when it is turned on or reset, or when your communications software calls
another modem.
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4 AT Commands, S-Registers, and Result Codes
AT Commands
Command:
Values:
AT
Attention Code
n/a
Description:
The attention code precedes all command lines except A/ and
the escape sequence.
Command:
Values:
ENTER Key
n/a
Description:
Press the ENTER or RETURN key to execute most commands. This
action is frequently abbreviated <CR>.
Command:
Values:
A
Answer
n/a
Description:
Answers an incoming call before the final ring.
Command:
Values:
A/
Repeat Last Command
n/a
Description:
Repeats the last command string. Do not precede this com-
mand with AT. Do not press ENTER to execute.
Command:
Values:
Bn
Communication Standard Setting
n = 0–3, 15, 16
Default:
1 and 16
Description: B0
Select ITU-T V.22 mode when modem is at 1200 bps.
Select Bell 212A when modem is at 1200 bps.
Deselect V.23 reverse channel (same as B3).
Deselect V.23 reverse channel (same as B2).
B1
B2
B3
B15 Select V.21 when the modem is at 300 bps.
B16 Select Bell 103J when the modem is at 300 bps.
Command:
Values:
Default:
Ds
Dial
s = dial string (phone number and dial modifiers)
none
Description:
Dial telephone number s, where s may up to 40 characters long
and include the 0–9, *, #, A, B, C, and D characters, and the L,
P, T, W, S, comma (,), semicolon (;), !, @, ^ and $ dial string
modifiers.
Dial string modifiers:
L
P
Redial last number. (Must be placed immediately after ATD.)
Select pulse-dialing until a T is encountered. Affects cur-
rent and subsequent dialing.
T Select tone-dialing until a P is encountered. Affects current
and subsequent dialing.
W Wait for a new dial tone before continuing to dial. (X2, X4,
X5, X6, or X7 must be selected.)
,
;
Pause during dialing for time set in register S8.
Return to command mode after dialing. Place at end of dial
string.
!
Hook flash. Causes the modem to go on-hook for one-half
second, then off-hook again.
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4 AT Commands, S-Registers, and Result Codes
@ Wait for quiet answer. Causes modem to wait for a ring
back, then 5 seconds of silence, before processing next part
of command. If silence is not detected, the modem returns a
NO ANSWER code.
^
$
Disable data calling tone transmission.
Detect AT&T call card “bong” tone. The character should
follow the phone number and precede the user’s call card
number: ATDT1028806127853500$123456789.
Command:
Values:
DS=n Dial Stored Telephone Number
n = 0, 1
Default:
none
Description:
Dials a number previously stored in directory number y by the
&Zn=x command. Example: ATDS=1.
Command:
Values:
En
Echo Command Mode Characters
n = 0 or 1
Default:
1
Description: E0
E1
Does not echo keyboard input to the terminal.
Does echo keyboard input to the terminal.
Command:
Values:
Fn
Echo Online Data Characters
n = 1
Default:
1
Description: F0
F1
Enables online data character echo. (Not supported.)
Disables online data character echo (included for backward
compatibility with some software).
Command:
Values:
Hn
Hook Control
n = 0 or 1
Default:
0
Description: H0
H1
Goes on-hook (hangs up).
Goes off-hook (makes the phone line busy).
Command:
Values:
In
Information Request
n = 0–5, 9, 11
Default:
None
Description: I0
Displays default speed and controller firmware version.
Calculates and displays ROM checksum (e.g., B399).
Checks ROM and verifies the checksum, displaying OK or ERROR.
Displays default speed and controller firmware version.
Displays firmware version for data pump (e.g., 17).
Displays the board ID: software version, hardware version, and
the country ID in hexadecimal format (e.g., s0503a01V, 0, 34).
Displays the country code in decimal format (e.g., 52).
Displays diagnostic information for the last modem
connection, such as DSP and firmware version, link type, line
speed, serial speed, type of error correction/data compression,
number of past retrains, etc.
I1
I2
I3
I4
I5
I9
I11
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4 AT Commands, S-Registers, and Result Codes
Command:
Values:
Default:
Description: M0
M1
Mn
Monitor Speaker Mode
n = 0, 1, 2, or 3
1
Speaker always off.
Speaker on until carrier signal detected.
Speaker always on when modem is off-hook.
Speaker on until carrier is detected, except while dialing.
M2
M3
Command:
Values:
Nn
Modulation Handshake
n = 0 or 1
Default:
1
Description: N0
N1
Modem performs handshake only at communication standard
specified by S37 and the B command.
Modem begins handshake at communication standard speci-
fied by S37 and the B command. During handshake, fallback
to a lower speed can occur.
Command:
Values:
On
Return Online to Data Mode
0, 1, 3
Default:
None
Description: O0
Exits online command mode and returns to data mode (see
+++AT<CR> escape sequence ).
Issues a retrain and returns to online data mode.
Issues a rate renegotiation and returns to data mode.
O1
O3
Command:
Values:
P
Pulse Dialing
P, T
Default:
T
Description:
Configures the modem for pulse (non-touch-tone) dialing.
Dialed digits are pulsed until a T command or dial modifier is
received.
Command:
Values:
Qn
Result Codes Enable/Disable
n = 0 or 1
Default:
0
Description: Q0
Enables result codes.
Q1
Q2
Disables result codes.
Returns an OK for backward compatibility with some software.
Command:
Values:
Sr=n Set Register Value
r = S-register number; n varies
Default:
None
Description:
Sets the value of register Sr to the value of n, where n is entered
in decimal format. Example: S0=1.
Command:
Values:
Sr? Read Register Value
r = S-register number
Default:
None
Description:
Reads the value of register Sr and displays it in 3-digit decimal
form. For example, S2? gives the response 043.
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4 AT Commands, S-Registers, and Result Codes
Command:
Values:
T
Tone Dialing
P, T
Default:
T
Description:
Configures the modem for DTMF (touch-tone) dialing. Dialed
digits are tone dialed until a P command or dial modifier is
received.
Command:
Values:
Vn
Result Code Format
n = 0 or 1
Default:
1
Description: V0
V1
Displays result codes as digits (terse response).
Displays result codes as words (verbose response).
Command:
Values:
Wn Result Code Options
n = 0, 1, or 2
Default:
2
Description: W0
CONNECT result code reports DTE (serial port) speed,
disables protocol result codes.
W1
W2
CONNECT result code reports DTE (serial port) speed, enables
protocol result codes.
CONNECT result code reports DCE (line) speed, enables
protocol result codes.
Command:
Values:
Xn
Result Code Selection
n = 0–7
Default:
4
Description: X0
Basic result codes (e.g., CONNECT); does not look for dial tone
or busy signal.
X1
X2
Extended result codes (e.g., CONNECT 46000 V42bis); does not
look for dial tone or busy signal.
Extended result codes with NO DIALTONE; does not look for
busy signal.
X3
X4
X5
X6
X7
Extended result codes with BUSY; does not look for dial tone.
Extended result codes with NO DIALTONE and BUSY.
Extended result codes with NO DIALTONE and BUSY.
Extended result codes with NO DIALTONE and BUSY.
Basic result codes with NO DIALTONE and BUSY.
Command:
Values:
Zn
Modem Reset
n = 0 or 1
Default:
Description: Z0
Z1
None
Resets modem to profile saved by the last &W command.
Same as Z0.
Command:
Values:
&Cn Data Carrier Detect (DCD) Control
n = 0, 1, or 2
Default:
1
Description: &C0 Forces the DCD circuit to be always high.
&C1 DCD goes high when the remote modem’s carrier signal is
detected, and goes low when the carrier signal is not detected.
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4 AT Commands, S-Registers, and Result Codes
Command:
Values:
&Dn Data Terminal Ready (DTR) Control
n = 0, 1, 2, or 3
Default:
2
Description: &D0 Modem ignores the true status of the DTR signal and responds
as if it is always on.
&D1 If DTR drops while in online data mode, the modem enters
command mode, issues an OK, and remains connected.
&D2 If DTR drops while in online data mode, the modem hangs up.
If the signal is not present, the modem will not answer or dial.
&D3 If DTR drops, the modem hangs up and resets as if an ATZ
command were issued.
Command:
Values:
&En XON/XOFF Pacing Control
n = 12 or 13
Default:
12
Description: &E12 Disables XON/XOFF pacing.
&E13 Enables XON/XOFF pacing. (&K4 must also be set.)
Note: &E13 has no effect if hardware control (&K3) is selected.
Command:
Values:
&Fn Load Factory Settings
n = 0
Default:
None
Description: &F0 Loads factory settings as active configuration.
Note: See also the Z command.
Command:
Values:
&Gn V.22bis Guard Tone Control
n = 0, 1, or 2
Default:
0
Description: &G0 Disables guard tone.
&G1 Sets guard tone to 550 Hz.
&G2 Sets guard tone to 1800 Hz.
Note: The &G command is not used in North America.
Command:
Values:
&Kn Flow Control Selection
n = 0, 3, or 4
Defaults:
3
Description: &K0 Disables flow control.
&K3 Enables CTS/RTS hardware flow control.
&K4 Enables XON/XOFF software flow control.
Command:
Values:
&Qn Asynchronous Communications Mode
n = 0, 5, 6, 8, or 9
Default:
5
Description: &Q0 Asynchronous with data buffering. Same as \N0.
&Q5 Error control with data buffering. Same as \N3.
&Q6 Asynchronous with data buffering. Same as \N0.
&Q8 MNP error control mode. If MNP error control is not estab-
lished, the modem falls back according to the setting in S36.
&Q9 V.42 or MNP error control mode. If neither error control is es-
tablished, the modem falls back according to the setting in S36.
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Command:
Values:
&Sn Data Set Ready (DSR) Control
n = 0 or 1
Default:
0
Description: &S0 DSR is always high (on).
&S1 DSR goes high only during a connection.
Command:
Values:
&Tn V.54 Test Commands
n = 0, 1, 3 or 6
Default:
None
Description: &T0 Abort. Stops any test in progress.
&T1 Initiates local analog loopback test.
&T3 Initiates local digital loopback test.
&T6 Initiates remote digital loopback test.
Note: To stop a test, you must use the escape sequence (+++AT) before typing &T0.
Command:
Values:
&V
Display Current Settings
n/a
Description:
Displays the active modem settings.
Command:
Values:
&Wn Store Current Configuration
n = 0, 1
Default:
None
Description: &W0 Stores current modem settings in nonvolatile memory and
causes them to be loaded in place of the factory defaults at
power-on or following the ATZ command. See also the &F
command.
&W1 Clears user default settings from nonvolatile memory and
causes the factory defaults to be loaded at power-on or follow-
ing the ATZ command.
Command: &Zn=x Store Dialing Command
Values:
n = 0, 1
x = Dialing command string
Default:
None
Description:
Stores dialing command x in memory location y. Dial the
stored number using the command ATDS=n.
Command:
Values:
&&S Speaker Codec Loopback
n/a
Description:
Provides a loopback from the microphone to the speaker. For
testing and debugging only.
Command:
Values:
\An Select Maximum MNP Block Size
n = 0, 1, 2, or 3
Default:
3
Description: \A0 64-character maximum.
\A1 128-character maximum.
\A2 192-character maximum.
\A3 256-character maximum.
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Command:
Values:
\Bn Transmit Break
n = 0–9 in 100 ms units
Default:
3
Description:
In non-error-correction mode only, sends a break signal of the
specified length to a remote modem. Works in conjunction
with the \K command.
Command:
Values:
\Jn
Data Buffer Control
n = 0
Default:
0
Description: \J0
Enables data buffer—DTE (serial port) speed is independent of
connect speed.
Command:
Values:
\Kn Break Control
n = 0–5
Default:
Description:
5
Controls the response of the modem to a break received from
the computer, the remote modem, or the \B commnd. The re-
sponse is different for each of three different states.
Data mode. The modem receives the break from the computer:
\K0 Enters online command mode, no break sent to the remote
modem.
\K1 Clears data buffers and send break to the remote modem.
\K2 Same as \K0.
\K3 Sends break immediately to the remote modem .
\K4 Same as \K0.
\K5 Sends break to the remote modem in sequence with the trans-
mitted data.
Data mode. The modem receives the break from the remote
modem:
\K0 Clears data buffers and sends break to the computer.
\K1 Same as \K0.
\K2 Sends break immediately to the computer.
\K3 Same as \K2.
\K4 Sends break to the computer in sequence with the received data.
\K5 Same as \K4.
Online command mode. The modem receives a \Bn command
from the computer:
\K0 Clears data buffers and sends break to the remote modem.
\K1 Same as \K0.
\K2 Sends break immediately to the remote modem.
\K3 Same as \K2.
\K4 Sends break to the remote modem in sequence with the
transmitted data.
\K5 Same as \K4.
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Command:
Values:
\Nn Error Correction Mode Selection
n = 0–5, or 7
Default:
3
Description: \N0 Non-error correction mode with data buffering (buffer mode;
same as &Q6).
\N1 Direct mode.
\N2 MNP reliable mode. If the modem cannot make an MNP
connection, it disconnects.
\N3 V.42/MNP auto-reliable mode. The modem attempts first to
connect in V.42 error correction mode, then in MNP mode, and
finally in non-error-correction (buffer) mode with continued
operation.
\N4 V.42 reliable mode.If the modem cannot make a V.42
connection, it disconnects.
\N5 V.42, MNP, or non-error correction (same as \N3).
\N7 V.42, MNP, or non-error correction (same as \N3).
Command:
Values:
\Qn Flow Control Selection
n = 0, 1, or 3
Default:
3
Description: \Q0 Disables flow control (same as &K0).
\Q1 XON/XOFF software flow control (same as &K4).
\Q3 RTS/CTS hardware flow control (same as &K3).
Command:
Values:
\Tn Inactivity Timer
n = 0, 1–255
Default:
0
Description: \Tn Sets the time (in minutes) that the modem waits after the last
character is sent or received before it disconnects. A value of
zero disables the timer. Applies only in buffer mode.
Note: You can also set the inactivity timer by changing the value of S30.
Command:
Values:
\Vn Protocol Result Code
n = 0, 1, or 2
Default:
1
Description: \V0 Disables the appending of the protocol result code to the DCE
speed.
\V1 Enables the appending of the protocol result code to the DCE
speed.
\V2 Same as \V1.
Command:
Values:
\Xn XON/XOFF Pass-Through
n = 0 or 1
Defaults:
0
Description: \X0 Modem responds to and discards XON/XOFF characters.
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Command:
Values:
-Cn Data Calling Tone
n = 0 or 1
Defaults:
0
Description: -C0 Disables V.25 data calling tone to deny remote data/fax/voice
discrimination.
-C1 Enables V.25 data calling tone to allow remote data/fax/voice
discrimination.
Command:
Values:
%A Adaptive Answer Result Code Enable
n = 0 or 1
Default:
0
Description:
The %A command controls whether the DATA and FAX result
codes will be sent by the modem. The modem must be in fax
mode for this command to work. Also, the modem must be set
to +FAA=1, which enables the modem to distinguish between
a fax and a data call. When these commands are enabled, the
modem sends DATA to the computer when it detects data tones,
and FAX when it detects fax tones. These strings are used by
some servers to select the appropriate communication program.
%A0 Disables adaptive answer result codes.
%A1 Enables adaptive answer result codes.
Note: For descriptions of the +FAA= and other fax commands, see the Multi-Tech Fax
Class 2.1 Developer’s Guide.
Command:
Values:
%B View Numbers in Blacklist
n/a
Description:
If blacklisting is in effect, AT%B displays the numbers for
which the last call attempted in the previous two hours failed.
In countries that do not require blacklisting, the ERROR result
code appears.
Command:
Values:
%Cn V.42bis Compression Control
n = 0 or 1
Default:
1
Description: %C0 Disable sV.42bis/MNP 5 data compression.
%C1 Enables V.42bis/MNP 5 data compression.
Command:
Values:
%En Fallback and Fall Forward Control
n = 0, 1, or 2
Default:
2
Description: %E0 Disables fallback and fall-forward.
%E1 Enables fallback, disables fall-forward.
%E2 Enables fallback and fall-forward.
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Command: +DCS=x,y Select V.44 Data Compression
Values:
x = 0 or 1 (V.42bis)
y = 0, 1, or 2 (V.44)
Default:
1,2
Description:
Selects V.42bis/V.44 data compression.
+DCS=0,0 V.42bis and V.44 data compression are both disabled.
+DCS=0,1 V.42bis is disabled; V.44 data compression is acceptable.
+DCS=0,2 V.42bis is disabled; V.44 only when connected to a V.92 server.
+DCS=1,0 V.42bis is acceptable; V.44 data compression is disabled.
+DCS=1,1 V.42bis is acceptable; V.44 data compression is acceptable.
+DCS=1,2 V.42bis is acceptable; V.44 only when connected to a V.92 server.
+DCS=?
+DCS?
Displays the allowed values.
Displays the current value.
Command: +DR=n V.44 Data Compression Reporting
Values:
n = 0 or 1
Default:
0
Description:
Enables or disables the V.44 data compression report. If the
compression report is enabled, the +DR:<type> intermediate
result code reports the current DCE-DCE data compression type.
It is issued after the Error Control Report (+ER) and before the
final result code (e.g., CONNECT). The intermediate result
code descriptions are shown after the command descriptions.
+DR=0 Disables the V.44 compression report.
+DR=1 Enables the V.44 compression report.
+DR=? Displays the allowed values.
+DR?
Displays the current value.
+DR: NONE Data compression not in use.
+DR: V42B V.42bis is in use in both directions.
+DR: V44
V.44 is in use in both directions.
Command: +DS44=n V.44 Data Compression
Values:
See description
Default:
See description
Description:
Controls the V.44 data compression function.
The command syntax is +DS44=[direction][,[0][,[0]
[,[max_codewords_tx][,[max_codewords_rx][,[max_string_tx]
[,[max_string_rx][,[max_history_tx][,[max_history_rx]]]]]]]]]<CR>
Subparameters that are not entered retain their current value.
Commas separate optional subparameters, and must be inserted
to skip a subparameter. Example: +DS44=,,,2048,2048<CR>
changes the maximum number of code words in both direc-
tions, and keeps all other settings at their current values.
+DS44=? Reports supported options in the format (list of supported di-
rection values), (0), (0), (list of supported max_codewords_tx val-
ues), (list of supported max_codewords_rx values), (list of sup-
ported max_string_tx values), (list of supported max_string_rx
values), (list of supported max_history_tx values), (list of sup-
ported max_history_rx values). Example: +DS44: (3, 0), (0), (0),
(256-2048), (256-2048), (31-255), (31-255), (512-11008), (512-11008).
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+DS44? Reports current options in the following format:
direction, 0, 0, max_codewords_tx, max_codewords_rx,
max_string_tx, max_string_rx, max_history_tx, max_history_rx.
Example: +DS44: 3, 0, 0, 1024, 1024, 255, 255, 5120, 4096.
Subparameters
direction Specifies the DTE direction of the data compression.
0
3
No compression.
Compression in both directions (default).
max_codewords_tx Specifies the maximum number of code words to be negotiated
in the transmit direction.
1024 Default.
256–2048 Maximum number of code words in transmit direction.
max_codewords_rx Specifies the maximum number of code words to be negotiated
in the receive direction.
1024 Default.
256–2048 Maximum number of code words in receive direction.
max_string_tx Specifies the maximum string length to be negotiated in the
transmit direction.
255 Default.
31–255 Maximum string length in transmit direction.
max_string_rx Specifies the maximum string length to be negotiated in the
receivedirection.
255 Default.
31–255 Maximum string length in receivedirection.
max_history_tx Specifies the maximum length of the history buffer to be nego-
tiated in the transmit direction.
5120 Default.
512–11008 History buffer size in transmit direction.
max_history_rx Specifies the maximum length of the history buffer to be nego-
tiated in the receive direction.
4096 Default.
512–11008 History buffer size in receive direction.
Command: +ES=n Enable Synchronous Buffered Mode
Values:
n = 6
Default:
None
Description:
Allows an H.324 video application direct access to the synchro-
nous data channel. On underflow, the modem sends HDLC
flag idle (0x7E) to the remote modem.·This special error con-
trol mode is overridden by any of the following commands:
&F, &M, &Q, or \N.
+ES=6 Enables direct access to the synchronous data channel.
+ES=? Displays the allowed values.
+ES?
Displays the current value.
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Command: +MS= Modulation Selection
Values:
See description.
Defaults:
Description:
See description.
This extended-format command selects modulation, enables or
disables automode, and specifies the highest downstream and
upstream connection rates using one to four subparameters.
The command syntax is
+MS=[mod][,[automode][,[0][,[max_rate][,[0][,[max_rx_rate]]]]]]<CR>
Subparameters that are not entered retain their current value.
Commas separate optional subparameters, and must be in-
serted to skip a subparameter. Example: +MS=,0,<CR> disables
automode and keeps all other settings at their current values.
+MS=? Reports supported options in the format (list of supported mod
values),(list of supported automode values),(0),(list of sup-
ported max_rate values),(0),(list of supported max_rx_rate val-
ues). Example: +MS: (BELL103, V21, BELL212A, V22, V22B,
V23C, V32, V32B, V34, V90, V92), (0, 1), (0), (0-33600), (0), (0-
56000)
+MS? Reports current options in the format mod, automode, 0, max_rate,
0, max_rx_rate. Example: +MS: V92, 1, 0, 33600, 0, 56000.
Subparameters
mod Specifies the preferred modulation (automode enabled) or the
modulation to use in originating or answering a connection
(automode disabled). The default is V92.
mod
Modulation
Possible rates (bps)1
V922
V.92
56000, 54667, 53333, 52000, 50667, 49333, 48000, 46667,
45333, 44000, 42667, 41333. 40000, 38667, 37333, 36000,
34667, 33333, 32000, 30667, 29333, or 28000
V903
V34
V.90
V.34
56000, 54667, 53333, 52000, 50667, 49333, 48000, 46667,
45333, 44000, 42667, 41333. 40000, 38667, 37333, 36000,
34667, 33333, 32000, 30667, 29333, or 28000
33600, 31200, 28800, 26400, 24000, 21600,19200, 16800,
14400, 12000, 9600, 7200, 4800, or 2400
V32B
V32
V.32bis
V.32
14400, 12000, 9600, 7200, or 4800
9600 or 4800
2400 or 1200
1200
V22B
V22
V.22bis
V.22
V23C
V21
V.23
1200
V.21
300
Bell212A
Bell103
Bell 212A
Bell 103
1200
300
Notes:
1. See optional <automode>, <max_rate>, and <max_RX_rate> subparameters.
2. Selects V.92 modulation as first priority. If a V.92 connection cannot be established,
the modem attempts V.90, V.34, V.32bis, etc.
3. Selects V.90 modulation as first priority. If a V.90 connection cannot be established,
the modem attempts V.34, V.32bis, etc.
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automode An optional numeric value that enables or disables automatic
modulation negotiation using V.8 bis/V.8 or V.32 bis Annex A.
Automode is disabled if values are specified for the max_rate
and max_rx_rate parameters. The options are:
0
1
Disable automode
Enable automode (default)
max_rate An optional number that specifies the highest rate at which the
modem may establish an upstream (transmit) connection. The
value is decimal coded in units of bps, for example, 33600
specifies the highest rate to be 33600 bps.
0
Maximum rate determined by the modulation selected in mod
(default).
300–33600 Maximum rate value limited by the modulation selected in
mod. For valid max_rate values for each mod value, see the
following table.
mod value
Valid max_rate values (bps)
V92, V90, V34
33600, 31200, 28800, 26400, 24000, 21600,19200, 16800,
14400, 12000, 9600, 7200, 4800, 2400
V32B
19200, 16800, 14400, 12000, 9600, 7200, 4800
V32
14400, 12000, 9600, 7200, 4800
V22B
2400
1200
300
V22, V23C, Bell212A
V21, Bell103
max_rx_rate An optional number that specifies the highest rate at which the
modem may establish a downstream (receive) connection. The
value is decimal coded in units of bps, e.g., 28800 specifies the
highest rate to be 28800 bps.
0
Maximum rate determined by the modulation selected in mod
(default).
300–56000 Maximum rate value limited by the modulation selected in mod.
See “Possible rates” in the mod table.
Command: +PCW=n Call Waiting Enable
Values:
n = 0, 1, or 2
Default:
0
Description:
Controls the action to be taken upon detection of a call waiting
tone in V.92 mode. Values specified by this command are not
modified when an AT&F command is issued.
+PCW=0 Toggles V.24 Circuit 125 and collects Caller ID if enabled by
+VCID
+PCW=1 Hangs up
+PCW=2 Ignores V.92 call waiting
+PCW=? Displays the allowed values
+PCW?
Displays the currrent value
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Command: +PIG=n PCM Upstream Ignore
Values:
n = 0 or 1
Default:
1
Description:
Controls the use of PCM upstream during V.92 operation.
PCM upstream allows faster upload speeds to a V.92 server.
+PIG=0 Disables PCM upstream
+PIG=1 Enables PCM upstream
+PIG=?
+PIG?
Displays the allowed values
Displays the currrent value
Command: +PMH=n Modem on Hold Enable
Values:
n = 0 or 1
Default:
1
Description:
Controls whether modem on hold procedures are enabled dur-
ing V.92 operation. Normally controlled by a modem on hold
program. Values specified by this command are not modified
when an AT&F command is issued.
+PMH=0 Enables V.92 modem on hold
+PMH=1 Disables V.92 modem on hold
+PMH=? Displays the allowed values
+PMH? Displays the currrent value
Command: +PMHF V.92 Modem Hook Flash
Values:
n/a
Default:
n/a
Description:
Causes the DCE to go on-hook for a specified period of time,
and then return off-hook for at least a specified period of time.
The specified period of time is normally one-half second, but
may be governed by national regulations. “ERROR” is re-
turned if MOH is not enabled.
Command: +PMHR=n Modem on Hold Initiate
Values:
n = 0–13
Default:
0
Description:
Determines if the modem will accept a V.92 Modem on Hold
(MOH) request and will set the MoH timeout. Valid only if
MOH is enabled and the modem is off-hook or in data mode.
Otherwise, ERROR will be returned.
+PMHR=0 Deny MOH request
+PMHR=1 Grant MOH request with 10 second timeout
+PMHR=2 Grant MOH request with 20 second timeout
+PMHR=3 Grant MOH request with 30 second timeout
+PMHR=4 Grant MOH request with 40 second timeout
+PMHR=5 Grant MOH request with 1 minute timeout
+PMHR=6 Grant MOH request with 2 minute timeout
+PMHR=7 Grant MOH request with 3 minute timeout
+PMHR=8 Grant MOH request with 4 minute timeout
+PMHR=9 Grant MOH request with 6 minute timeout
+PMHR=10 Grant MOH request with 8 minute timeout
+PMHR=11 Grant MOH request with 12 minute timeout
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+PMHR=12 Grant MOH request with 16 minute timeout
+PMHR=13 Grant MOH request with indefinite timeout
+PMHR=? Displays the allowed values
+PMHR?
Displays the currrent value
Command: +PMHT=n Modem on Hold Timer
Values:
n = 0–13
Default:
0
Description:
Determines if the modem will accept a V.92 Modem on Hold
(MOH) request and will set the MoH timeout.
+PMHT=0 Deny MOH request
+PMHT=1 Grant MOH request with 10 second timeout
+PMHT=2 Grant MOH request with 20 second timeout
+PMHT=3 Grant MOH request with 30 second timeout
+PMHT=4 Grant MOH request with 40 second timeout
+PMHT=5 Grant MOH request with 1 minute timeout
+PMHT=6 Grant MOH request with 2 minute timeout
+PMHT=7 Grant MOH request with 3 minute timeout
+PMHT=8 Grant MOH request with 4 minute timeout
+PMHT=9 Grant MOH request with 6 minute timeout
+PMHT=10 Grant MOH request with 8 minute timeout
+PMHT=11 Grant MOH request with 12 minute timeout
+PMHT=12 Grant MOH request with 16 minute timeout
+PMHT=13 Grant MOH request with indefinite timeout
+PMHT=? Displays the allowed values
+PMHT?
Displays the currrent value
Command: +PQC=n Quick Connect Control
Values:
n = 0, 1, 2, or 3
Default:
0
Description:
Controls the V.92 shortened Phase 1 and Phase 2 startup proce-
dures (quick connect). When line conditions are stable, quick
connect results in shortened connect times; however, significant
fluctuation in line conditions from call to call can result in longer
connect times, in which case it may be advisable to disable
quick connect. The +PQC command is interactive with S109.
+PQC=0 Enables Short Phase 1 and Short Phase 2 (Quick Connect)
+PQC=1 Enables Short Phase 1
+PQC=2 Enables Short Phase 2
+PQC=3 Disables Short Phase 1 and Short Phase 2
+PQC=? Displays the allowed values
+PQC?
Displays the currrent value
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Command: +VCID=n Caller ID Selection
Values:
n = 0, 1, or 2
Default:
0
Description:
Enables Caller ID detection and configures the reporting and
presentation of the Caller ID data that is detected after the first
ring. The reported data includes the date and time of the call,
the caller's name and number, and a message. Set S0=2.
+VCID=0 Disables Caller ID
+VCID=1 Enables Caller ID with formatted data
+VCID=2 Enables Caller ID with unformatted data
+VCID=? Displays the allowed values
+VCID? Displays the currrent value
Command: +VDR=x, y Distinctive Ring Report
Values:
x = 0, 1 Distinctive Ring report control. See description.
y = 0–255 Minimum ring interval in 100 ms units. See description.
0, 0
Default:
Description:
Enables reporting of ring cadence information to the DTE and
specifies the minimum ring cadence that will be reported.
The report format is one line per silence period and one line
per ring period. The length of the silence period is in the form
DROF=number in units of 100 ms<CR><LF>, and the length of
the ring is in the form DRON=number in units of 100 ms<CR>
<LF>. The modem may produce a Ring event code after the
DRON message if enabled by the y parameter. The y parameter
must be set to a value equal to or smaller than the expected
ring cadence in order to pass the report to the DTE.
+VDR=0, n/a Disables Distinctive Ring cadence reporting.
+VDR=1, 0
Enables Distinctive Ring cadence reporting. Other call progress
result codes (including RING) are reported as normal.
Enables Distinctive Ring cadence reporting. The RING result
code is reported after the falling edge of the ring pulse (i.e., after
the DRON report).
+VDR=1, >0
+VDR=?
+VDR?
Displays the allowed values.
Displays the currrent value.
Command:
Values:
Default:
#Sx Enter Setup Password
x= password (1–8 characters, case sensitive)
MTSMODEM
Description:
Enters the remote configuration setup password.
Command:
Values:
Default:
#S=x Store Setup Password
x= password (1–8 characters, case sensitive)
MTSMODEM
Description:
Stores a new remote configuration setup password.
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Command: +++AT<CR> Escape Sequence
Values:
n/a
Description:
Puts the modem in command mode (and optionally issues a
command) while remaining online. Type +++AT and up to six
command characters, then press ENTER. Used mostly to issue
the hang-up command: +++ATH<CR>.
Command: %%%AT<CR> Remote Configuration Escape Sequence
Values:
n/a
Description:
Initiates remote configuration mode while online with remote
modem. The remote configuration escape character (%) is de-
fined in register S13.
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S-Registers
Certain modem values, or parameters, are stored in memory locations called S-registers.
Use the S command to read or to alter the contents of S-registers (see previous section).
Register Unit
Range Default Description
S0
1 ring
0, 1–255
0
Sets the number of rings until the modem
answers. ATS0=0 disables autoanswer com-
pletely. Range varies by country. Set S0=2
for Caller ID.
S1
S2
1 ring
0–255
0
Counts the rings that have occurred.
decimal 0–255
decimal 0–127
decimal 0–127
43 (+)
Sets ASCII code for the escape sequence char-
acter. Values greater than 127 disable escape.
S3
13 (^M) Sets the ASCII code for the carriage return
character.
S4
S5
10 (^J) Sets the ASCII code for the line feed character.
decimal 0–32,
8 (^H) Sets the ASCII code for the backspace char-
acter. Values over 32 disable backspace.
33–127
S6
S7
seconds 2–65*
2*
50*
2
Sets the time the modem waits after it goes
off-hook before it begins to dial the telephone
number.
seconds 1–255*
Sets the time the modem waits for a carrier
signal before aborting a call. Also sets the
wait-for-silence time for the @ dial modifier.
S8
S9
seconds 2–65
Sets the length of a pause caused by a comma
character in a dialing command.
decimal 0, 1–127
37 (%) Sets ASCII code for remote configuration
escape character. S9=0 disables remote
configuration.
S10
100 ms 20–255
20
Sets how long a carrier signal must be lost
before the modem disconnects.
S11
S28
S30
1 ms
50–150*
95*
1
Sets spacing and duration of dialing tones.
decimal 0, 1–255
0 disables, 1–255 enables V.34 modulation.
1 minute 0, 1–255
0
Sets the time the modem waits before it dis-
connects when no data is sent or received. A
value of zero disables the timer. See also the
\T command
S35
S36
decimal 0–1
0
7
0 disables, 1 enables the V.25 data calling
tone, which allows remote data/fax/voice
discrimination.
decimal 0–7
Specifies the action to take in the event of a
negotiation failure when error control is se-
lected. See S48.
* These values may be different outside North America.
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Register Unit
Range Default Description
S37
decimal 0–19
0
Sets the maximum V.34 “upstream” speed
at which the modem attempts to connect.
Value Speed
0
1
maximum modem speed
reserved
2
3
1200/75 bps
300 bps
4
reserved
5
1200 bps
6
2400 bps
7
4800 bps
8
7200 bps
9
9600 bps
10
11
12
13
14
15
16
17
18
19
12000 bps
14400 bps
16800 bps
19200 bps
21600 bps
24000 bps
26400 bps
28800 bps
31200 bps
33600 bps
S38
decimal 0–23
1
Sets the maximum 56K “downstream” speed
at which the modem attempts to connect.
The default maximum speed is 56K bps.
Note: When using V.34 or V.32 client-to-client
connections in poor conditions, setting
S38=0 may result in better performance.
Value Rate
0
1
2
3
4
5
6
7
8
56K disabled
56K autorate
28000 bps
29333 bps
30666 bps
32000 bps
33333 bps
34666 bps
36000 bps
37333 bps
38666 bps
40000 bps
41333 bps
42666 bps
44000 bps
45333 bps
46666 bps
48000 bps
49333 bps
9
10
11
12
13
14
15
16
17
18
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Register Unit
Range Default Description
19
20
21
22
23
50666 bps
52000 bps
53333 bps
54666 bps
56000 bps
S42
S48
decimal 0–1
1
7
Enables/disables the 56K auto rate. When
56K auto is disabled, fallback to V.34 is also
disabled. 0 = disable; 1 = enable.
decimal 7 or 128
Enables (7) or disables (128) LAPM negotia-
tion. The following table lists the S36 and
S48 configuration settings for certain types
of connections.
S48=7
LAPM or hangup
LAPM or async
S48=128
Do not use
Async
S36=0, 2
S36=1, 3
S36=4, 6
S36=5, 7
LAPM, MNP, or hangup MNP or hangup
LAPM, MNP, or aysnc MNP or async
S89
seconds 0, 5–255
0
6
Sets the inactivity time in the off-line com-
mand mode before the modem goes into
standby mode. A value of 0 disables stand-
by mode; values of 1–4 set the value to 5.
S108
decimal 0–3, 6, 7
Selects the 56K digital loss if using the modem
thru a PBX line. The default value is -6 dB
loss, the value used when calling from a
typical POTS line long distance.
Value Digital loss
0
-0 dB digital loss, no robbed-bit
signaling
1
2
3
6
7
-3 dB PBX digital loss
-2 dB digital loss
-3 dB digital loss
-6 dB digital loss
-0 dB digital loss with robbed-bit
signaling
S109
decimal 0–62, even 18
Selects the PCM (56K) operating mode.
numbers
Interactive with the +PQC= command.
Bit
0
1
56K mode
Reserved—always 0
Enable V.90
2
3
4
Enable quick connect (phase 1)
Enable PCM upstream
Enable V.92
5
Enable quick connect (phase 2)
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4 AT Commands, S-Registers, and Result Codes
Result Codes
In command mode your modem can send responses called result codes to your com-
puter. Result codes are used by communications programs and can also appear on
your monitor.
Terse
Verbose
Description
0
OK
Command executed
1
2
CONNECT
RING
Modem connected to line
Ring signal detected
3
4
NO CARRIER
ERROR
Carrier signal lost or not detected
Invalid command
5
6
7
CONNECT 1200 *
NO DIALTONE
BUSY
Connected at 1200 bps
No dial tone detected
Busy signal detected
8
NO ANSWER
No answer at remote end
Connected at 2400 bps
10
11
12
13
14
24
25
26
40
55
56
57
58
59
60
70
71
72
73
74
75
76
77
78
79
80
81
82
CONNECT 2400 *
CONNECT 4800 *
CONNECT 9600 *
CONNECT 14400 *
CONNECT 19200 *
CONNECT 7200 *
CONNECT 12000 *
CONNECT 16800 *
CONNECT 300 *
CONNECT 21600 *
CONNECT 24000 *
CONNECT 26400 *
CONNECT 28800 *
CONNECT 31200 *
CONNECT 33600 *
CONNECT 32000 *
CONNECT 34000 *
CONNECT 36000 *
CONNECT 38000 *
CONNECT 40000 *
CONNECT 42000 *
CONNECT 44000 *
CONNECT 46000 *
CONNECT 48000 *
CONNECT 50000 *
CONNECT 52000 *
CONNECT 54000 *
CONNECT 56000 *
Connected at 4800 bps
Connected at 9600 bps
Connected at 14400 bps
Connected at 19200 bps
Connected at 7200 bps
Connected at 12000 bps
Connected at 16800 bps
Connected at 300 bps
Connected at 21600 bps
Connected at 24000 bps
Connected at 26400 bps
Connected at 28800 bps
Connected at 31200 bps
Connected at 33600 bps
Connected at 32000 bps, 56K rate
Connected at 34000 bps, 56K rate
Connected at 36000 bps, 56K rate
Connected at 38000 bps, 56K rate
Connected at 40000 bps, 56K rate
Connected at 42000 bps, 56K rate
Connected at 44000 bps, 56K rate
Connected at 46000 bps, 56K rate
Connected at 48000 bps, 56K rate
Connected at 50000 bps, 56K rate
Connected at 52000 bps, 56K rate
Connected at 54000 bps, 56K rate
Connected at 56000 bps, 56K rate
* When the extended result code configuration option is enabled, one of the following codes is append-
ed to the result code, depending on the type of error control connection:
V42bis – V.42 error control (LAP-M) and V.42bis data compression
V42 – V.42 error control (LAP-M) only
MNP5 – MNP 4 error control and MNP 5 data compression
MNP4 – MNP 4 error control only
NoEC – No error control protocol
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4 AT Commands, S-Registers, and Result Codes
Terse
Verbose
DELAYED
Description
88
Delay is in effect for the dialed number
89
BLACKLISTED
Dialed number is blacklisted
90
BLACKLIST FULL
CONNECT 28000 *
CONNECT 29333 *
CONNECT 30666 *
CONNECT 33333 *
CONNECT 34666 *
CONNECT 37333 *
CONNECT 38666 *
CONNECT 41333 *
CONNECT 42666 *
CONNECT 45333 *
CONNECT 46666 *
CONNECT 49333 *
CONNECT 50666 *
CONNECT 53333 *
CONNECT 54666 *
Blacklist is full
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
Connected at 28000 bps, 56K rate
Connected at 29333 bps, 56K rate
Connected at 30666 bps, 56K rate
Connected at 33333 bps, 56K rate
Connected at 34666 bps, 56K rate
Connected at 37333 bps, 56K rate
Connected at 38666 bps, 56K rate
Connected at 41333 bps, 56K rate
Connected at 42666 bps, 56K rate
Connected at 45333 bps, 56K rate
Connected at 46666 bps, 56K rate
Connected at 49333 bps, 56K rate
Connected at 50666 bps, 56K rate
Connected at 53333 bps, 56K rate
Connected at 54666 bps, 56K rate
* When the extended result code configuration option is enabled, one of the following codes is append-
ed to the result code, depending on the type of error control connection:
V42bis – V.42 error control (LAP-M) and V.42bis data compression
V42 – V.42 error control (LAP-M) only
MNP5 – MNP 4 error control and MNP 5 data compression
MNP4 – MNP 4 error control only
NoEC – No error control protocol
44
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5
Remote
Configuration
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MultiModemZPX User Guide
5 Remote Configuration
Introduction
Remote configuration is a network management tool that allows you to configure
MT5634ZPX and MT5634ZBA modems anywhere in your network from one location.
With password-protected remote configuration, you can issue AT commands to a
remote modem for maintenance or troubleshooting as if you were on site.
Basic Procedure
The following steps are valid regardless of whether the connection is established by
the local or the remote Multi-Tech modem.
Note: For this procedure, the remote computer must be running, and a communication
program must be ready for a data connection, which will be indicated by a lighted
TR indicator on the front of the modem.
1. Establish a data connection with a remote MT5634ZPX or MT5634ZBA modem.
2. Send three remote configuration escape characters followed by AT and the setup
password, and press ENTER. Example: %%%ATMTSMODEM. You have four
tries to enter the correct password before being disconnected. If the password is
correct, the remote modem responds with OK.
3. Type AT commands to configure the remote modem.
4. When you have finished configuring the remote modem, save the new
configuration by typing AT&W0 and pressing ENTER.
5. Type ATO and press ENTER to exit remote configuration. You can now break the
connection in the normal way.
Setup
Multi-Tech modems are shipped with a default setup password (MTSMODEM).
Because anyone who has the User Guide knows the default setup password, you should
change the password and possibly also the remote configuration escape character.
To Change the Setup Password
1. Open a data communications program such as HyperTerminal or PhoneTools.
2. In the terminal window, type AT#SMTSMODEM (or AT#Sxxxxxxxx if you have
replaced the MTSMODEM password with xxxxxxxx) and press ENTER. The modem
responds with OK if the setup password is correct, and ERROR if it is wrong.
3. To change the password, type AT#S=xxxxxxxx, where xxxxxxxx stands for the
password, and then press ENTER. The password can include any keyboard
character, and can be up to eight characters long. The modem responds with OK.
CAUTION: Passwords are case-sensitive. The next time you enter the password,
it must be in the same case as you set it up.
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MultiModemZPX User Guide
5 Remote Configuration
4. The new password is saved automatically. You can now either enter more AT
commands or exit the data communications program. The next time you wish to
set up the modem, you must use the new password.
To Change the Remote Escape Character
To further improve security, you can change a remote modem’s remote configuration
escape character either locally or remotely. The remote configuration escape charac-
ter is stored in register S9. The factory default is 37, which is the ASCII code for the
percent character (%). Setting S9 to 0 (zero) disables remote configuration entirely.
CAUTION: If you do this remotely, you won’t be able to change it back remotely.
1. Establish a remote configuration link with the remote modem as described in
“Basic Procedure.”
2. Type ATS9=n, where n is the ASCII code for the new remote configuration es-
cape character, and then press ENTER.
3. Save the new value by typing AT&W and pressing ENTER.
4. Type ATO and press ENTER to exit remote configuration.
47
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6
Solving
Problems
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MultiModemZPX User Guide
6 Solving Problems
Introduction
Your modem was thoroughly tested at the factory before it was shipped. If you are
unable to make a successful connection, or if you experience data loss or garbled
characters during your connection, it is possible that the modem is defective. How-
ever, it is more likely that the source of your problem lies elsewhere. The following
symptoms are typical of problems you might encounter:
• The modem does not respond to commands.
• The modem cannot connect when dialing.
• The modem disconnects while online.
• The modem cannot connect when answering.
• File transfer is slower than it should be.
• Data is being lost.
• There are garbage characters on the monitor.
• The modem doesn’t work with Caller ID.
• Fax and data software can’t run at the same time.
• The voice functions don’t work.
If you experience problems, please check the following possibilities before calling
Technical Support (see Appendix D).
The Modem Does Not Respond to Commands
Make sure you are issuing the modem commands from data communications
software, either manually in terminal mode or automatically by configuring the
software. (You cannot send commands to the modem from the DOS prompt.)
Make sure you are in terminal mode in your data communications program, then
type AT and press ENTER. If you get an OK response from your modem, your
connections are good and the problem likely is in the connection setup in your
communications software.
If you don’t get an OK, make sure you have properly configured the port in your
communications program. Most legacy (prior to Windows 95) communications
programs connect to the COM port when the software loads and remain connect-
ed until the program terminates. Some programs can disconnect without exiting
the program. If this is the case, try issuing the software’s connection command.
If more than one communications program is open, they may conflict with each
other. Make sure all other communications programs are closed, and then try to
make the connection again.
If you are using DOS or Windows 3.1 communication software, make sure the
initialization string includes &F as the first command, to cancel any “leftover’
command that could affect the modem’s operation.
Your communication software settings might not match the port the modem is
connected to. Make sure the COM port you chose during setup matches the COM
port set in your communications software. See Chapter 2 for more information.
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MultiModemZPX User Guide
6 Solving Problems
Another expansion card, such as a sound or game card, might be using the same
COM port, memory address, or interrupt request (IRQ) as your modem. See
Chapter 2 for information on verifying the configuration for your operating sys-
tem. Look for conflicts with other devices installed on your computer. Resources
are assigned at power-up by the computer’s BIOS. If the resources assigned to
the MultiModemZPX-PCI conflict with the resources of another device, the re-
sources of the second device have to be changed. Select the port the conflicting
device is on and change it to resolve the conflict. If you need to change switches
or jumpers on the conflicting device, refer to the device’s documentation.
If you have another MultiModemZPX-PCI, install it and try to make a connec-
tion.
The modem might have a problem beyond the scope of this user guide. If you
have another Multi-Tech modem, try swapping modems. If the problem goes
away, call Technical Support for assistance (see Appendix D).
The Modem Cannot Connect When Dialing
Reasons why the MultiModemZPX-PCI may fail to connect include:
• lack of a physical connection to the telephone line.
• a wrong dial tone.
• a busy signal.
• a wrong number.
• no modem at the other end.
• a faulty modem, computer, or software at the other end.
• incompatibility between modems
poor line conditions.
You can narrow the list of possibilities by using extended result codes. Extended re-
sult codes are enabled by default. If they have been disabled, include V1X4 in the
modem’s initialization string, or in terminal mode enter ATV1X4 and press ENTER.
When you dial again, the modem reports the call’s progress.
If the modem reports NO DIALTONE, check that the modem’s telephone line ca-
ble is connected to both the modem’s LINE jack (not the PHONE jack) and the
telephone wall jack. If the cable looks secure, try replacing it.
If that doesn’t work, the problem might be in your building’s telephone installa-
tion. To test the building installation, plug a telephone into your modem’s
telephone wall jack and listen for a dial tone. If you hear a dial tone, your modem
might be installed behind a corporate phone system (PBX) with an internal dial
tone that sounds different from the normal dial tone. In that case, the modem
might not recognize the dial tone and might treat it as an error. Check with your
PBX personnel or the PBX system manual to see if you can change the internal dial
tone. If you can’t, change your modem’s initialization string to replace X4 with
X3, which will cause the modem to ignore dial tones (note, however, that X3 is
not allowed in some countries, such as France and Spain).
If the modem reports BUSY, the other number might be busy. Try again later.
BUSY can also indicate that you failed to add a 9, prefix to the phone number if
you must dial 9 for an outside line.
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MultiModemZPX User Guide
6 Solving Problems
If you must dial 9 to get an outside line, the easiest way to dial it automatically
using legacy software is to include it in the modem’s dial prefix, e.g., ATDT9,.
Note the comma, which inserts a pause before the number is dialed. By inserting
9, into the dial prefix, you do not have to include it in each directory entry.
To change the dial prefix in Windows HyperTerminal, select Connect from the
Call menu, click Dialing Properties, and type 9 in the local and long distance
boxes.
If the modem reports NO ANSWER, the other system has failed to go off-hook, or
you might have dialed a wrong number. Check the number.
If the modem reports NO CARRIER, the phone was answered at the other end,
but no connection was made. You might have dialed a wrong number, and a per-
son answered instead of a computer, or you might have dialed the correct
number but the other computer or software was turned off or faulty. Check the
number and try again, or try calling another system to make sure your modem is
working. Also, try calling the number on your telephone. If you hear harsh
sounds, then there is a modem at the other end. In that case, the modems might
be having problems negotiating because of incompatibilities or line noise. Try the
call again, connecting at a lower speed by setting register S37 to a lower rate (for
example, by typing ATS37=11 in the terminal window and pressing ENTER).
Poor line conditions can also affect the connection. When using V.34 or V.32 cli-
ent-to-client connections in poor conditions, setting S38=0 may result in better
performance.
The Modem Disconnects While Online
If you have Call Waiting on the same phone line as your modem, it can interrupt
your connection when someone tries to call you. If you have Call Waiting, dis-
able it before each call. In most telephone areas in North America, you can
disable Call Waiting by preceding the telephone number with *70 (but first check
with your local telephone company).
You can automatically disable Call Waiting by including the disabling code in
the modem’s dial prefix (e.g., ATDT*70,—note the comma, which inserts a pause
before the number is dialed). For example, in Windows select Start | Settings |
Control Panel, and then Modems. In the Modems Properties dialog box, select
Multi-Tech MT5634ZPX-PCI, and then click Dialing Properties. Check This lo-
cation has call waiting, and then select the correct code for your phone service.
If you have extension phones on the same line as your modem, you or someone
else can interrupt the connection by picking up another phone. If this is a fre-
quent problem, disconnect the extension phones before using the modem, or
install another phone line especially for the modem.
Check that the phone cord between the modem’s LINE jack and the wall jack is
undamaged and firmly connected to both.
You might have had a poor connection because of line conditions or the problem
might have originated on the other end of the line. Try again.
Your ISP might have hung up on you because of lack of activity on your part or
because you exceeded your time limit for the day. Try again.
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6 Solving Problems
The Modem Cannot Connect When Answering
The default DTR Control command (&D2) inhibits autoanswer. To enable au-
toanswer, change DTR Control to &D0, and make sure &Q0, &Q5, or &Q6 is
also set. For more information, see the &D command in Chapter 4. For informa-
tion on changing the modem’s default configuration, see “Step 5: Install and
Configure Your Software” in Chapter 2.
Autoanswer might be disabled. Turn on autoanswer in your communications
program or send the command ATS0=1 (ATS0=2 if you have Caller ID service)
to your modem in terminal mode.
File Transfer Is Slower Than It Should Be
If you are using a slow transfer protocol, such as Xmodem, try Zmodem or
Ymodem/G instead.
Is your line noisy? If there is static on your line, the modem has to resend many
blocks of data to insure accuracy. You must have a clean line for maximum speed.
If you are downloading a compressed file with MNP 5 hardware compression
enabled, try disabling data compression. The transfer may be marginally slower
with data compression enabled, because hardware data compression cannot
compress a file already compressed by an archiving program.
Does your Internet service provider (ISP) use the same 56K protocol as your mo-
dem? The default setting of your modem is to connect using either the V.92 or
the V.90 protocol, depending on which one the ISP’s modem is using. If your ISP
uses the V.90 protocol, the maximum speed you will be able to upload at is
33,600 bps. Check with your ISP to see which protocols it supports.
Are you trying to send a file to another client modem? If so, then your maximum
possible connect speed is 33,600 bps. You can upload at speeds greater than 33,600
bps only when connected to an ISP that supports the V.92 protocol.
Try entering the I11 command in online mode or the &V command in command
mode to display information about the last connection, making a screen print of
the connection statistics, and checking for parameters that might be unacceptable.
Data Is Being Lost
If you are using data compression, set the serial port baud rate to two to six times
the data rate.
Make sure the flow control method you selected in your software matches the
method selected in the modem (see AT commands &K and \Q.)
Enter the I11 command in online mode or the &V command in command mode
to display information about the last connection. Then make a screen print of the
connection statistics, and look for unacceptable parameters.
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6 Solving Problems
There Are Garbage Characters on the Monitor
Your computer and the remote computer might be set to different word lengths,
stop bits, or parities. If you have connected at 8-N-1, try changing to 7-E-1, or
vice-versa, using your communication software.
You might be experiencing line noise. Enable error correction, if it is disabled, or
hang up and call again; you might get a better connection the second time.
At speeds above 2400 bps, the remote modem might not use the same transmis-
sion or error correction standards as your modem. Try connecting at a slower
speed or disabling error correction. (With no error correction, however, line noise
can cause garbage characters.)
Enter the I11 command in online mode or the &V command in command mode
to display information about the last connection. Then make a screen print of the
connection statistics, and look for unacceptable parameters.
The Modem Doesn’t Work with Caller ID
Caller ID information is transmitted between the first and second rings, so if
autoanswer is turned off (S0=0) or if the modem is set to answer after only one
ring (S0=1), the modem will not receive Caller ID information. Check your ini-
tialization string, and if necessary change it to set the modem to answer after the
second ring (S0=2).
Make sure that you have Caller ID service from your telephone company.
Fax and Data Software Can’t Run at the SameTime
Communication devices can be accessed by only one application at a time. Under
DOS or Windows 3.1x, you can run either your fax software or your data com-
munications software, but not both at the same time, unless you have a special
communication device management application. In Windows 95 and higher, you
can have data and fax communication applications open at the same time, but
they cannot use the same modem at the same time.
The Voice Functions Don’t Work
There are several tests that you can perform to verify the voice circuits of the Multi-
ModemZPX. First, make sure all connecting cables—telephone, microphone, and
speaker—are undamaged and firmly connected to the correct jacks. Then retry
whatever action was not working. If the problem persists, try the voice mail test; if
that doesn’t work, and if you have a microphone and speaker connected to the
MultiModemZPX, try the loopback and speakerphone tests, which do not require
special software.
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6 Solving Problems
Voice Mail Test
Test the MultiModemZPX’s voice function by using the included software to set up
the MultiModemZPX for voice mail. Have an acquaintance call and leave a message,
and then play it back.
If your modem does not play sound files in voice mode, go to Windows Control Panel
and double-click the Multimedia icon. Under the Audio tab, select Modem Wave
Driver as your preferred device for both playback and recording, then try again.
Loopback Test
1. Connect a microphone and speaker to the MultiModemZPX. To avoid feedback,
make sure the microphone and speaker are well separated; better yet, use a
headphone instead of a speaker.
2. Select Start, point to Programs, point to Accessories, and click HyperTerminal.
3. Click Cancel in the Connection Description dialog box.
4. In the HyperTerminal terminal window, type AT&&S and press ENTER. This
command causes input from the microphone to be looped back to the speaker.
5. Speak into the microphone; you should hear your voice on the speaker or head-
phone.
6. Type ATZ and press ENTER to reset the modem.
Speakerphone Test
1. Connect a microphone and speaker to the MultiModemZPX.
2. Select Start, point to Programs, point to Accessories, and click HyperTerminal.
3. Click Cancel in the Connection Description dialog box.
4. In the HyperTerminal terminal window, type
AT+FCLASS=8
AT+VLS=7
ATDTxxxxxxx (for xxxxxxx substitute a telephone number)
5. Speak into the microphone to talk to the person on the other end of the line, and
listen over the speaker.
6. Type +++ATH and press ENTER to hang up.
7. Type ATZ and press ENTER to reset the modem.
54
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Appendixes
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MultiModemZPX User Guide
A Regulatory Compliance
Appendix A: Regulatory Compliance
FCC Part 68 Telecom
1. This equipment complies with part 68 of the Federal Communications Commission
Rules. On the outside surface of this equipment is a label that contains, among
other information, the FCC registration number. This information must be pro-
vided to the telephone company.
2. The suitable USOC jack (Universal Service Order Code connecting arrangement)
for this equipment is shown below. If applicable, the facility interface codes
(FIC) and service order codes (SOC) are shown.
3. An FCC-compliant telephone cord and modular plug is provided with this
equipment. This equipment is designed to be connected to the telephone net-
work or premises wiring using a compatible modular jack that is Part 68 compli-
ant. See installation instructions for details.
4. The ringer equivalence number (REN) is used to determine the number of devic-
es that may be connected to the telephone line. Excessive RENs on the telephone
line may result in the device not ringing in response to an incoming call. In
most, but not all, areas the sum of the RENs should not exceed 5.0. To be certain
of the nuber of devices that may be connected to the line, as determined by the
total RENs, contact the local telephone company.
5. If this equipment causes harm to the telephone network, the telephone company
will notify you in advance that temporary discontinuance of service may be re-
quired. But if advance notice is not practical, the telephone company will notify
you as soon as possible. Also, you will be advised of your right to file a complaint
with the FCC if you believe it is necessary.
6. The telephone company may make changes in its facilities, equipment, opera-
tions, or procedures that could affect the operation of the equipment. If this hap-
pens, the telephone company will provide advance notice in order for you to
make necessary modifications in order to maintain uninterrupted service.
7. If trouble is experienced with this equipment (the model of which is indicated
below) please contact Multi-Tech Systems, Inc. at the address shown below for
details of how to have repairs made. If the trouble is causing harm to the tele-
phone network, the telephone company may request you remove the equipment
from the network until the problem is resolved.
8. No repairs are to be made by you. Repairs are to be made only by Multi-Tech
Systems or its licensees. Unauthorized repairs void registration and warranty.
9. This equipment should not be used on party lines or coin lines.
10. If so required, this equipment is hearing-aid compatible.
Manufacturer:
Trade Name
Multi-Tech Systems, Inc.
MultiModemZPX
Model Number:
FCC Registration No:
MT5634ZPX-PCI
AU7USA-27014-M5-E
Ringer Equivalence No: 0.4A
Modular Jack (USOC):
RJ11C
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MultiModemZPX User Guide
A Regulatory Compliance
Service Center in USA:
Multi-Tech Systems, Inc.
2205 Woodale Drive
Mounds View, MN 55112
U.S.A.
(763) 785-3500
(763) 785-9874 Fax
FCC Part 15
This equipment has been tested and found to comply with the limits for a Class B
digital device, pursuant to Part 15 of the FCC Rules. These limits are designed to
provide reasonable protection against harmful interference in a residential installa-
tion. This equipment generates, uses, and can radiate radio frequency energy, and if
not installed and used in accordance with the instructions, may cause harmful inter-
ference to radio communications. However, there is no guarantee that interference
will not occur in a particular installation. If this equipment does cause harmful inter-
ference to radio or television reception, which can be determined by turning the
equipment off and on, the user is encouraged to try to correct the interference by one
or more of the following measures:
• Reorient or relocate the receiving antenna.
• Increase the separation between the equipment and receiver.
• Plug the equipment into an outlet on a circuit different from that to which the
receiver is connected.
• Consult the dealer or an experienced radio/TV technician for help.
This device complies with Part 15 of the FCC rules. Operation of this device is sub-
ject to the following conditions: (1) This device may not cause harmful interference,
and (2) this device must accept any interference that may cause undesired operation.
WARNING: Changes or modifications to this unit not expressly approved by the
party responsible for compliance could void the user’s authority to operate the
equipment.
Fax Branding Statement
The Telephone Consumer Protection Act of 1991 makes it unlawful for any person to
use a computer or other electronic device, including fax machines, to send any mes-
sage unless such message clearly contains the following information:
• Date and time the message is sent
• Identification of the business or other entity, or other individual sending the
message
• Telephone number of the sending machine or such business, other entity, or
individual
This information is to appear in a margin at the top or bottom of each transmitted
page or on the first page of the transmission. (Adding this information in the margin
is referred to as fax branding.)
Since any number of fax software packages can be used with this product, the user
must refer to the fax software manual for setup details. Typically the fax branding
information must be entered via the configuration menu of the software.
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MultiModemZPX User Guide
A Regulatory Compliance
Canadian Limitations Notice
Notice: The ringer equivalence number (REN) assigned to each terminal device pro-
vides an indication of the maximum number of terminals allowed to be connected to
a telephone interface. The termination on an interface may consist of any combination
of devices subject only to the requirement that the sum of the ringer equivalence
numbers of all the devices does not exceed 5.
Notice: The Industry Canada label identifies certificated equipment. This certifica-
tion means that the equipment meets certain telecommunications network protec-
tive, operational and safety requirements. The Industry Canada label does not
guarantee the equipment will operate to the user’s satisfaction.
Before installing this equipment, users should ensure that it is permissible to be con-
nected to the facilities of the local telecommunications company. The equipment
must also be installed using an acceptable method of connection. The customer
should be aware that compliance with the above conditions may not prevent degra-
dation of service in some situations. Repairs to certified equipment should be made
by an authorized Canadian maintenance facility designated by the supplier. Any re-
pairs or alterations made by the user to this equipment or equipment malfunctions
may give the telecommunications company cause to request the user to disconnect
the equipment.
Users should ensure for their own protection that the electrical ground connections
of the power utility, telephone lines and internal metallic water pipe system, if
present, are connected together. This precaution may be particularly important in
rural areas.
Caution: Users should not attempt to make such connections themselves, but should
contact the appropriate electric inspection authority, or electrician, as appropriate.
Industry Canada
This Class B digital apparatus meets all requirements of the Canadian Interference-
Causing Equipment Regulations.
Cet appareil numérique de la classe B respecte toutes les exigences du Reglement
Canadien sur le matériel brouilleur.
Protection Against Contact with TNV Circuit
The protective cover is fastened to the modem card by means that will only allow a
tool to remove the cover.
Warning: Removal of the protective cover will affect product safety and user safety
requirements.
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A Regulatory Compliance
EMC, Safety, and R&TTE Directive Compliance
The CE mark is affixed to this product to confirm compliance with the following
European Community Directives:
•
•
Council Directive 89/336/EEC of 3 May 1989 on the approximation of the laws
of Member States relating to electromagnetic compatibility;
and
Council Directive 73/23/EEC of 19 February 1973 on the harmonization of the
laws of Member States relating to electrical equipment designed for use within
certain voltage limits;
and
•
Council Directive 1999/5/EC of 9 March 1999 on radio equipment and telecom-
munications terminal equipment and the mutual recognition of their conformity.
New Zealand Telecom Warning Notice
1. The grant of a Telepermit for any item of terminal equipment indicates only that
Telecom has accepted that the item complies with minimum conditions for con-
nection to its network. It indicates no endorsement of the product by Telecom,
nor does it provide any sort of warranty. Above all, it provides no assurance
that any item will work correctly in all respects with another item of Telepermit-
ted equipment of a different make or model, nor does it imply that any product
is compatible with all of Telecom’s network services.
This equipment is not capable under all operating conditions of correct opera-
tion at the higher speed which it is designated. 33.6 kbps and 56 kbps connec-
tions are likely to be restricted to lower bit rates when connected to some PSTN
implementations. Telecom will accept no responsibility should difficulties arise
in such circumstances.
2. Immediately disconnect this equipment should it become physically damaged,
and arrange for its disposal or repair.
3. This modem shall not be used in any manner which could constitute a nuisance
to other Telecom customers.
4. This device is equipped with pulse dialing, while the Telecom standard is DTMF
tone dialing. There is no guarantee that Telecom lines will always continue to
support pulse dialing.
Use of pulse dialing, when this equipment is connected to the same line as other
equipment, may give rise to ‘bell tinkle’ or noise and may also cause a false an-
swer condition. Should such problems occur, the user should not contact the
Telecom Faults Service.
The preferred method of dialing is to use DTMF tones, as this is faster than
pulse (decadic) dialing and is readily available on almost all New Zealand tele-
phone exchanges.
5. Warning Notice: No ‘111’ or other calls can be made from this device during a
mains power failure.
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A Regulatory Compliance
6. This equipment may not provide for the effective hand-over of a call to another
device connected to the same line.
7. Some parameters required for compliance with Telecom’s Telepermit require-
ments are dependent on the equipment (PC) associated with this device. The as-
sociated equipment shall be set to operate within the following limits for
compliance with Telecom’s Specifications:
For repeat calls to the same number:
• There shall be no more than 10 call attempts to the same number within any
30-minute period for any single manual call initiation, and
• The equipment shall go on-hook for a period of not less than 30 seconds be-
tween the end of one attempt and the beginning of the next attempt.
For automatic calls to different numbers:
• The equipment shall be set to ensure that automatic calls to different num-
bers are spaced such that there is no less than 5 seconds between the end of
one call attempt and the beginning of another.
For automatically answered incoming calls:
• The equipment shall be set to ensure that calls are answered between 3 and
30 seconds of receipt of ringing.
8. For correct operation, total of the RNs of all devices connected to a single line at
any time should not exceed 5.
South African Notice
This modem must be used in conjunction with an approved surge protection device.
International Modem Restrictions
Some dialing and answering defaults and restrictions may vary for international
modems. Changing settings may cause a modem to become non-compliant with
national telecom requirements in specific countries. Also note that some software
packages may have features or lack restrictions that may cause the modem to be-
come non-compliant.
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B Technical Specifications
Appendix B: Technical Specifications
The MultiModemZPX modem meets the following specifications:
Trade Name
MultiModemZPX™
MT5634ZPX-PCI
Model Number
Build Number
MT5634ZPX-PCI-V92
Server-to-Client
Data Rates
56K speeds when accessing a V.90 or V.92 server (actual
speed depends on server capabilities and line conditions)*
Client-to-Server
Data Rates
Up to 48Kbps when accessing a V.92 server (actual speed
depends on server capabilities and line conditions); other-
wise the same as client-to-client data rates.
Client-to-Client
Data Rates
33600, 31200, 28800, 26400, 24000, 21600, 19200, 16800,
14400, 12000, 9600, 7200, 4800, 2400, 1200, 0-300 bps
Fax Data Rates
33600, 31200, 28800, 26400, 24000, 21600, 19200, 16800,
14400, 12000, 9600, 7200, 4800, 2400, 300 bps
Data Format
Serial, binary, asynchronous
Modem Compatibility ITU-T V.92, V.90, V.34 enhanced, V.34, V.32bis, V.32,
V.22bis, V.22; Bell 212A and 103/113; ITU-T V.21 & V.23;
V.42, V.42bis, V.44
Fax Compatibility
ITU-T “Super” Group 3, Class 1.0, 2.0, 2.1, T.4, T.30, V.21,
V.27ter, V.29, V.34, V.17; TIA/EIA 578 Class 1, 2; TR29.2
Video Compatiblity
Voice Compatibility
ITU-T V.80 for H.324 video conferencing
AT+V/TAM command set
Voice Mode Sampling Up to 44.100 kHz (down-sampled to 11.025 kHz)
Error Correction
ITU-T V.42 (LAP-M or MNP 4)
Data Compression
ITU-T V.44 (6:1 throughput), V.42bis (4:1 throughput), MNP
5 (2:1 throughput)
Speed Detection
Automatic speed detection and switching between available
speeds
Speed Conversion
Serial port data rates adjustable to 300, 1200, 2400, 4800,
9600, 19,200, 38,400, 57,600, and 115,200 bps
Modes of Operation
Flow Control
Fax online modes; full duplex data over dial-up lines; voice
XON/XOFF (software), RTS/CTS (hardware)
Intelligent Features
Plug and play; fully AT command compatible; autodial,
redial, repeat dial; pulse or tone dial; dial pauses; auto
answer; adaptive answer; EIA extended automode; adaptive
line probing; automatic symbol and carrier frequency during
start-up, retrain, and rate renegotiation; DTMF detection;
*Though this modem is capable of 56K bps download performance, line impairments, public
telephone infrastructure and other external technological factors currently prevent maxi-
mum 56K bps connections.
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B Technical Specifications
call status display, auto-parity and data rate selections;
keyboard-controlled modem options; non-volatile memory;
remote configuration; DTR dialing; callback security; A-law
support in 56K modes; 11-bit support; real-time fax
compression conversion; U.S. Caller ID reporting; quick-
connect startup.
Command Buffer
Transmit Level
40 characters
-11 dBm (North America and Pan Euro)—varies by country
setting
Frequency Stability
Receiver Sensitivity
0.01%
-43 dBm under worst-case conditions
AGC Dynamic Range 43 dB
Bus Type
PCI 2.1
Connectors
Two RJ-11 phone jacks, one microphone jack, and one
speaker jack
Cables
One RJ-11 phone cable
Note: Any cables connected to the computer should be
shielded to reduce interference.
Diagnostics
Power-on self-test (POST) and local analog loop
Environmental
Temperature range 0°–50°C (32°–120°F); humidity range
20–90% (non-condensing)
Storage Temperature
Power Requirements
Dimensions
-10° to +85°C (14°–185°F)
150 mA @ -5 VDC
1.8 cm wide × 14.7 cm long ´× 12.2 cm high (0.7" × 5.8" × 4.8")
Operating Systems
Tested for use with Windows 95, 98, NT, and 2000, and
Linux (2.2.x kernal).
Limited Warranty
10 years
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C Loopback Tests
Appendix C: Loopback Tests
Introduction
Each time you turn on your modem, it performs an automatic self-test to ensure
proper operation. Your modem also has three diagnostic tests: local analog loop-
back, remote digital loopback, and local digital loopback. These ITU-T V.54 loop-
back tests isolate telephone circuit and transmission problems.
In a loopback test, data from your computer loops through the circuits of your mo-
dem and/or a remote modem before it appears on your monitor. When the loop has
been completed, the data on your PC’s monitor should match the original data.
The local analog loopback test allows you to verify that the modem’s transmitter
and receiver circuits are functioning properly.
The remote digital loopback test allows you to verify that the local computer or ter-
minal, the serial ports, the local and remote modems, and the transmission line be-
tween them are functioning properly.
The local digital loopback test allows you to verify that the remote computer or ter-
minal, the serial ports, the local and remote modems, and the transmission line be-
tween them are functioning properly.
Local Analog Loopback Test (V.54 Loop 3)
In this test, data from your computer or terminal is sent to your modem’s transmit-
ter, converted into analog form, looped back to the modem’s receiver, converted into
digital form, and then sent to your monitor for verification. No connection to the
phone line is required.
AT&T1
CONNECT 9600
UUUUUUUUUUUU
Digital Analog
Computer or Terminal
Local MultiModem
Figure C-1. Local analog loopback test.
Test procedure
1. Using a communications program, set the baud rate to 9600 and go into terminal
mode.
2. Type AT&T1 and press ENTER. This places your modem in analog loopback
mode in the originate mode. A CONNECT message should appear on your dis-
play. The modem is now out of command mode and in a pseudo-online mode.
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C Loopback Tests
3. Enter characters from your keyboard. For this test, typing multiple uppercase U
characters is a good way to send an alternating test pattern of binary ones and
zeros. The characters entered should be displayed on your monitor.
4. To exit the test, type the escape sequence +++AT and press ENTER. This puts the
modem in online command mode. Then type either AT&T or ATH to return to
command mode.
5. Your modem passes this test if the characters received on your monitor are the
same as the characters entered from your keyboard. If different characters ap-
pear on your monitor, your modem is probably causing the problem, though it
could also be your computer. If your modem passes this test, but you are receiv-
ing errors while on line, the remote modem or the phone line could be at fault.
Remote Digital Loopback Test (V.54 Loop 2)
The remote digital loopback test tests the phone lines and the circuits of both your
local modem and a remote modem. In this test, your modem must be on line with
another modem that is set up to respond to a request for remote digital loopback.
(Note that some modems might not support remote digital loopback or might have
it disabled.) Data from your computer or terminal is transmitted through your mo-
dem and over the phone line to the remote modem, where it is then looped back to
your modem.
AT&T6
OK
AT&T6
OK
UUUUUUUUUUU
UUU
Digital Analog
Analog Digital
Computer or Terminal Local MultiModem
Remote MultiModem Computer or Terminal
Figure C-2. Remote digital loopback test.
Test procedure
1. Arrange to have &T6 set on the remote test modem.
2. Using your communication program, set the baud rate to 9600 and go into ter-
minal mode. Type AT and press ENTER; you should get an OK message. Type
AT\N and press ENTER to disable error correction.
3. Dial the remote modem and establish your online connection.
4. Type the escape sequence +++AT and press ENTER to bring your modem into
online command mode.
5. Type AT&T6 and press ENTER. The local modem responds to this command by
transmitting an unscrambled marking signal, which causes the remote modem
to place itself in digital loopback mode. Then the local modem exits online com-
mand mode and enters data mode.
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C Loopback Tests
6. Enter data from your keyboard. For this test, typing multiple uppercase U char-
acters is a good way to send an alternating test pattern of binary ones and zeroes.
Data received by the remote modem enters its analog receiver, is converted to
digital data, is reconverted into analog, and then is transmitted back to your
modem. Your modem passes this test if the characters received on your monitor
are the same as the characters entered from your keyboard.
7. To exit the test, type the escape sequence +++AT and press ENTER. This puts the
modem in online command mode. The modem should respond with an OK mes-
sage. If you wish to stay on line with the remote modem for normal data trans-
mission, type AT&T and press ENTER to exit the test, then type ATO and press
ENTER to return on line. If you wish to terminate the call, type ATH and press
ENTER to hang up.
Local Digital Loopback Test (V.54 Loop 2)
The local digital loopback test is identical to the remote digital loopback test with
one exception. Instead of using your modem to signal a remote modem to place it-
self in digital loopback mode, your modem is placed in digital loopback mode while
the remote modem is not. Data is entered and transmitted from the remote modem,
sent across the phone line to your modem, and looped back to the remote modem.
AT&T3
OK
UUUUUUUUUUU
UUU
Digital Analog
Analog Digital
Computer or Terminal Local MultiModem
Remote MultiModem Computer or Terminal
Figure C-3. Local digital loopback test.
Test procedure
1. Using your communication program, set the baud rate to 9600 and go into ter-
minal mode. Type AT and press ENTER; you should get an OK message.
2. Dial the remote modem and establish your online connection.
3. Type the escape sequence +++AT and press ENTER to bring your modem into
online command mode.
4. Type AT&T3 and press ENTER. Once you receive an OK message from your mo-
dem (if responses are enabled), your modem is placed in digital loopback mode.
5. Have someone enter data from the remote keyboard. For this test, typing multiple
uppercase U characters is a good way to send an alternating test pattern of binary
ones and zeros. The data received by your modem enters its analog receiver, is
converted to digital data, is reconverted into analog, and then is transmitted back to
the remote modem. Your modem passes this test if the characters received on the
remote monitor are the same as the characters entered from the remote keyboard.
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C Loopback Tests
6. To exit the test, type the escape sequence +++AT and press ENTER. This puts the
modem in online command mode. The modem should respond with an OK
message. If you wish to stay on line with the remote modem for normal data
transmission, type AT&T and press ENTER to exit the test, then type ATO and
press ENTER to return on line. If you wish to terminate the call, type ATH and
press ENTER to hang up.
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D Warranty, Service, and Technical Support
Appendix D: Warranty, Service, and
Technical Support
Limited Warranty
Multi-Tech Systems, Inc. (MTS) warrants that this product will be free from defects
in material or workmanship for a period of ten years from the date of purchase or, if
date of purchase is not provided, ten years from the date of shipment.
MTS MAKES NO OTHER WARRANTY, EXPRESSED OR IMPLIED, AND ALL IM-
PLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICU-
LAR PURPOSE ARE HEREBY DISCLAIMED.
This warranty does not apply to any products that have been damaged by lightning
storms, water, or power surges, or that have been neglected, altered, abused, used
for a purpose other than the one for which they were manufactured, repaired by
Customer or any party without MTS’s written authorization, or used in any manner
inconsistent with MTS’s instructions.
MTS’s entire obligation under this warranty shall be limited (at MTS’s option) to repair
or replacement of any products that prove to be defective within the warranty peri-
od or, at MTS’s option, issuance of a refund of the purchase price. Defective prod-
ucts must be returned by Customer to MTS’s factory with transportation prepaid.
MTS WILL NOT BE LIABLE FOR CONSEQUENTIAL DAMAGES, AND UNDER
NO CIRCUMSTANCES WILL ITS LIABILITY EXCEED THE PURCHASE PRICE
FOR DEFECTIVE PRODUCTS.
Online Warranty Registration
If you have access to the World Wide Web, you can register your Multi-Tech prod-
Service
U.S. and Canadian Customers
In the event that service is required, products may be shipped, freight prepaid, to
our Mounds View, Minnesota, factory:
Multi-Tech Systems, Inc.
2205 Woodale Drive
Mounds View, MN 55112
Attn: Repairs, Serial #______
A Returned Materials Authorization (RMA) is not required. Return shipping charg-
es (surface) will be paid by MTS. Please include inside the shipping box a description
of the problem, a return shipping address (must have street address, not P.O. Box), a
telephone number, and if the product is out of warranty, a check or purchase order
for repair charges.
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D Warranty, Service, and Technical Support
Extended two-year overnight replacement agreements are available for selected
products. Please call MTS at 888 288-5470, extension 5308, or visit our web site at
http://www.multitech.com/PROGRAMS/orc/ for details on rates and coverages.
Please direct your questions regarding technical matters, product configuration, ver-
ification that the product is defective, etc., to our Technical Support department at
Please direct your questions regarding repair expediting, receiving, shipping, bill-
ing, etc., to our Repair Accounting department at 800 328-9717 or +763 785-3500, or
Repairs for damages caused by lightning storms, water, power surges, incorrect installa-
tion, physical abuse, or user-caused damages are billed on a time-plus-materials basis.
International Customers (outside U.S.A. and Canada)
Your original point of purchase reseller may offer the quickest and most economical
repair option for your Multi-Tech product. You may also contact any Multi-Tech sales
office for information about the nearest distributor or other repair service for your
In the event that factory service is required, products may be shipped, freight pre-
paid, to our Mounds View, Minnesota, factory. Recommended international ship-
ment methods are via Federal Express, UPS or DHL courier services, or by airmail
parcel post; shipments made by any other method will be refused. A Returned Ma-
terials Authorization (RMA) is required for products shipped from outside the
U.S.A. and Canada. Please contact us for return authorization and shipping instruc-
tions on any international shipments to the U.S.A. Please include, inside the ship-
ping box, a description of the problem, a return shipping address (must have street
address, not P.O. Box), your telephone number, and if the product is out of warran-
ty, a check drawn on a U.S. bank or your company’s purchase order for repair
charges. Repaired units will be shipped freight collect, unless other arrangements
are made in advance.
Please direct questions regarding technical matters, product configuration, verifica-
tion that the product is defective, etc., to our Technical Support department nearest
ing repair expediting, receiving, shipping, billing, etc., to our Repair Accounting
Repairs for damages caused by lightning storms, water, power surges, incorrect
installation, physical abuse, or user-caused damages are billed on a time-plus-
materials basis.
International Distributors
Procedures for international distributors of Multi-Tech products are on the Distribu-
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D Warranty, Service, and Technical Support
Technical Support
Multi-Tech Systems has an excellent staff of technical support personnel available to
help you get the most out of your Multi-Tech product. If you have any questions
about the operation of this unit, please call 800 972-2439 (USA and Canada) or 763
785-3500 (international and local). Please have modem information available. You
can also contact Technical Support by e-mail at the following addresses:
Country
France:
Email
Telephone
+(33) 1-64 61 09 81
+91 (124) 6340778
+(44) 118 959 7774
800 972-2439
India:
U.K.:
U.S.A., Canada
Rest of world:
+763 717-5863
Before placing a call to our Technical Support staff, please record the following in-
formation about your Multi-Tech modem:
Model no.: _____________________________
Serial no.: ______________________________
Firmware version: _______________________
Software version: ________________________
COM port no.: __________________________
IRQ setting: ____________________________
The modem model and serial numbers are silk-screened on your modem. To display
the modem firmware version, type ATI<CR> in terminal mode.
Please note the status of the modem before contacting Technical Support. Status in-
formation can include screen messages, diagnostic test results, problems with a spe-
cific application, etc.
Internet Sites
Multi-Tech is a commercial provider on the Internet. Multi-Tech has a Web site at
and an ftp site at
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E Upgrading the Modem
Appendix E: Upgrading the Modem
Introduction
Your modem is controlled by semi-permanent software, called firmware, which is
stored in flash memory. Firmware is nonvolatile; that is, it remains stored in memory
when the modem is turned off. However, it can be changed by either the manufac-
turer or the user as bugs are fixed or new features are added.
Since the firmware in your modem is stored in flash memory, you can upgrade it
yourself in a few minutes by using the following procedures.
Upgrade Overview
The upgrade procedure consists of the following steps, which are described in greater
detail in the following sections.
1. Identify the model number and firmware version of your modem.
2. Identify the current version of the firmware at the Multi-Tech Web site or BBS. If
your modem already has the current firmware, there is no need to update it.
3. Download the upgrade file and the appropriate Flash Wizard for your modem.
4. Install the Flash Wizard and extract the firmware .HEX file from the file you
downloaded.
5. Document and clear your stored parameters.
6. Upgrade the modem’s firmware using the .HEX file and the Flash Wizard.
7. Restore your parameters.
Step 1: Identify the Modem Firmware
You must know the model number and firmware version of your Multi-Tech modem
to know whether or not you should update it.
1. Run your favorite terminal program. If you are using Windows 95 or above, you
can use HyperTerminal.
2. In the program’s terminal window, type AT&F. Even if you cannot see the
AT&F command on your screen, be sure to type it completely, and then press
ENTER. If the modem does not respond with OK, repeat the AT&F command.
3. Now type ATI, press ENTER, and record your results. The model number and
firmware version should appear similar to that shown below.
LT V.92 1.0 MT5634ZPX-PCI-V92 Serial Data/Fax Modem Version 1.25a
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E Upgrading the Modem
Step 2: Identify the Current Firmware Version
Identify the current version of your modem’s firmware at the Multi-Tech Web site. If
your modem already has the current firmware, there is no need to update it.
2. Scroll down to your modem model number.
3. Look at the firmware version number for your modem.
4. If the firmware version number matches the firmware version number found in
“Step 1: Identify the Modem Firmware,” your modem has the current firmware
version, and does not need to be updated.
5. If the firmware version number is greater than the firmware version number
found in “Step 1: Identify the Modem Firmware,” your modem has an older
firmware version. Continue with “Step 3: Download the Upgrade File.”
Warning: The first digit of the new firmware must match the first digit of the
old firmware, or the modem may not work properly. E.g., if your current firm-
ware version is 4.16, replace it only with 4.xx firmware, not 6.xx firmware.
Step 3: Download the Upgrade File
Web site, follow the procedure in “Step 2: Identify the Current Firmware.”
2. Download the upgrade file for your modem by clicking its name, and save the
file in a temporary folder on your hard disk.
3. In the same section of the Web page, download the Flash Wizard utility by click-
ing it, and save it in the same folder. Alternately, install the Flash wizard from
the MultiModemZPX compact disc.
Step 4: Extract the Upgrade Files
1. Install the Flash Wizard utility by double-clicking the Flash Wizard file name in
Windows Explorer.
2. Extract the upgrade files by double-clicking the file name. The extracted files in-
clude a .HEX file, which contains the upgrade data, and a Readme file.
3. Copy the upgrade .HEX file into the Flash Wizard folder, which, in a default in-
stallation, is at C:\Program Files\MultiTech Systems\Flash Wizard\.
Step 5: Document and Clear Your Stored Paramenters
Before you flash your modem, you should record the parameters that are currently
stored in it so you can reprogram it after flashing. After you have recorded them,
send the AT&W1Z command to the the modem to clear the stored parameters.
1. Run your favorite terminal program.
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E Upgrading the Modem
2. In the program’s terminal window, type AT&V and press ENTER to list your
modem’s current parameters.
3. Record your parameters by saving the screens and sending them to your printer.
4. Type AT&W1Z and press ENTER to clear your stored parameters and reset your
modem to factory default.
5. Close the terminal program.
Step 6: Upgrade the Modem’s Firmware
Before you begin the following procedure, read the README.TXT file extracted
from the upgrade archive file. Note the file name for the new firmware (example:
ARQG125A.HEX). Also, if you are using Windows NT, you must disable Windows
RAS and Microsoft Fax Service before upgrading the modem’s firmware. To disable
RAS and your Fax service, Click Start | Settings | Control Panel, and then double-
click Services. Select Remote Access Server , and then click the Startup button. Se-
lect Manual as the startup type, and then click OK. Do the same for any fax service.
WARNING: Never install an older version of firmware over a newer version. Doing
this WILL DESTROY THE FLASH PROM! If the flash PROM is destroyed, the mo-
dem must be sent in for repair.
1. Run Flash Wizard by double-clicking its icon or file name, or by selecting it
from the Start menu. The program begins by identifying devices attached to
your computer.
2. Select the modem to be upgraded, and then click Next to proceed.
3. Select the port to be upgraded from the Port list, select the appropriate .HEX file
from the Hex File list, and then click Next to continue.
Note: Do not use FLASHLDR.HEX. This file is used internally by Flash Wizard.
4. The Progress dialog box now displays the progress of the upgrade.
Caution: Any disruption of the program during this stage of the upgrade can
cause your modem to become inoperable. Wait for the Next button to become
active before proceeding.
5. When the flash upgrade is complete, the message Programming Complete
appears. Click Next to continue.
6. The Results dialog box appears next. Click Finish to exit Flash Wizard.
Note: If you are using Windows NT, be certain to enable RAS and your fax ser-
vice when the operating system restarts.
Step 7: Restore Your Parameters
Your modem has been updated. You can now open your terminal program to repro-
gram your modem parameters or to confirm the update by typing ATI in the termi-
nal window and pressing ENTER.
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F Installing Under Linux
Appendix F: Installing Under Linux
Introduction
This appendix explains how to install a modem on a computer operating under the
Red Hat Linux 6.2 operating system. Other versions of Red Hat and other Linux op-
erating systems should be similar. Briefly, in Linux, you do not need drivers for most
modems. Programs in Linux commonly call upon the port, rather than the modem.
Standard Linux Serial Port Definitions
PC port
Com1
Com2
Com3
Com4
Linux port
ttyS0
ttyS1
ttyS2
ttyS3
Installation
Setup
Install the MultiModemZPX in the computer as described in Chapter 2.
1. Turn on the computer and allow the computer to boot to the command prompt.
2. Log on as root.
3. Determine the resources the modem is using by typing the command cat /proc/pci
or the command less /proc/pci. Look for the entry listing vendor id=11c1 and
device id=480. Note the IRQ the device uses as well as the first I/O address listed.
Output example:
Non-prefetchable 32 bit memory at 0x00000000
Bus 0, device 17, function 0:
Communication controller:Unknown vendor Unknown device (rev 0)
Vendor id=11c1 Device id=480
Medium devsel. Fast back-to-back capable. IRQ 11. Master
Capable. No bursts.
Min GNT=252. Max lat=14
Non-prefetchable 32 bit memory at 0xe4000000
I/O at 0x6400
I/O at 0x6800
I/O at 0x6c00
4. Using the IRQ and first I/O address from the output obtained in step 3, type the
command setserial /dev/ttySx uart 16550A port y irq z, where x is the serial de-
vice you want to use, y is the I/O address, and z is the IRQ. Example: setserial /
dev/ttyS2 uart 16550A port 0x6400 irq 11.
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F Installing Under Linux
Note: The preceding example places the modem on COM3. Your IRQ and port
may vary. Substitute the IRQ and port values in the example with the values for
your computer as listed in the results of the command issued in step 3. To set
Linux to configure the modem at boot-up, use an editor such as “jed” and add
the setserial command to the end of the rc.local file.
5. Once you’ve completed your installation, you must configure your modem for
country-specific operation. See Chapter 2 for information on using AT com-
mands to configure your modem for use in your country.
Using the Terminal Program Minicom to Verify Operation
This section describes how to make sure Linux can talk to the modem and be able to
dial up to the Internet. Linux can use different programs and desktops depending on
who made the Linux operating system and what version it is. The following proce-
dures use the most commonly installed components of Red Hat 6.2. More informa-
tion can be found in your Linux OS owner’s manual.
1. At the command prompt, type minicom –s and press ENTER.
2. Select Serial port setup and press ENTER.
3. From Serial port setup, use the A key to access Serial Device, and then press
ENTER.
4. Press ESC.
5. You are now in the Minicom terminal. Type AT and press ENTER. The screen
should display OK to verify the operation. Alternately, dial a phone number to
verify line operation
6. To leave Minicom, press CTRL + A, and then press Z.
7. On the help menu, press X to exit.
Using the Modem to Call the Internet
Linux allows different graphic user interfaces (GUI). In the following steps, we’ll use
the Gnome Desktop GUI and assume that the Internet Service Provider (ISP) you are
calling assigns you the Domain Name Service (DNS) and Internet Protocol (IP) ad-
dresses. For more information on DNS or IP, see the Linux OS owner’s manual or
contact your ISP.
1. On the Task Bar at the bottom of the screen, select the Gnome Footprint.
2. Select Internet from the menu.
3. Select Dialup Configuration Tool.
4. Select Add, and then click Next.
5. Enter the connection name and phone number, and then click Next.
6. Enter your user name and password, and then click Next.
7. Select Normal ISP if your ISP is not listed, and then click Next.
8. Click Finish.
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F Installing Under Linux
Calling the ISP
1. On the Task Bar at the bottom of the screen, select the Gnome Footprint.
2. Select Internet from the menu.
3. Select RH PPP Dialer.
4. Select the connection name you entered in step 5 of the previous section.
5. Click OK.
Answering Calls
To use the system for answering calls, Linux requires other programs to be installed,
such as Mgetty, Mgetty+Sendfax, and others, depending on your requirements. Each
vendor of Linux has more than adequate information on installing these programs.
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G Installing Under SCO OpenServer
Appendix G: Installing Under SCO OpenServer
Introduction
This appendix explains how to install a modem on a computer operating under the
SCO OpenServer 5.0.x operating system. Briefly, in SCO OpenServer , you do not
need drivers for most modems. Programs in SCO OpenServer commonly call upon
the port, rather than the modem.
Installation
Install the MultiModemZPX in the computer as described in Chapter 2.
Setup
1. Turn on the computer and allow the computer to boot to the command prompt.
2. Log in as root.
3. Determine the port address and IRQ for the modem by typing: hw -r pci
To output the port address and IRQ information to a file, type: hw -r pci>pci.txt
Caution: If you choose to output the information to a file, make sure the output
file name includes the .txt extension. While logged on as “root”, the possibility
exists that the system file “pci” will be overwritten. By default, UNIX does not
ask if you want to overwrite a file.
4. Look at the ClassCode: 0x078000 (other communications device) section of the
output. The MultiModemZPX is identified as SubSystemID: 0x0480.
5. Use the first I/O address listed as the port address. In the output, look for:
BaseAddr [x]: I/O NxNNNN
where x is the first I/O base address (not memory) and NxNNN is the I/O address.
6. Use Serial Manager (or mkdev serial) to add a serial port. Choose IBM Com X
for the new port, where X is the number of the new port. Use the first I/O ad-
dress listed in the output file created in step 3 (BaseAddr [x]:) as the port address.
7. Use the IRQ listed in the InterruptLine of the output file created in step 3.
8. Once the serial port has been added, the system will require the kernal to be
relinked. After the relinking is complete, restart the system to activate the changes.
9. Log back on as root.
10. At this point, you may configure the modem as needed on the new port and add
required entries to Devices.
11. Once you’ve completed your hardware installation and system setup, you must
configure your modem for country-specific operation. Refer to Chapter 2 for in-
formation on using AT commands to configure the modem for use in your country.
Note: If you are using the modem to dial out, a dialer may be needed.
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Index
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MultiModemZPX User Guide
Symbols
56K operation
digital loss when used with PBX
42
Index
\J 29
\K 29
\N 30
\Q 30
\T 30
\V 30
\X 30
A 23
A/ 23
AT 23
B 23
D 23
definition 22
descriptions 23–39
DS= 24
E 24
F 24
format 22
H 24
I 24
M 25
N 25
O 25, 46, 47
P 25
Q 25
S= 25
S? 25
T 26
V 26
W 26
X 26
Z 26
communication programs
16, 22, 49
Communication Standard command
23
compression, data 32, 52
configuration, storing a 16, 28
configuring for your country 15
configuring software 16
connect messages 16, 43
country code, displaying 24
country configuration 15
disabling the auto rate 42
maximum connect speed 41
mode selection 42
A
abort timer 40
Adaptive Answer Result Code
Enable command 31
analog loopback test 63–64
Answer command 23
Asynchronous Communications
Mode command 27
AT commands 22–44
#S 38
#S= 38
%%%AT 39
%A 31
%B 31
%C 31
%E 31
&&S 28
&C 26
&D 27, 52
&E 27
&F 16, 27
&G 27
D
Data Buffer Control command 29
data buffering 27
data calling tone 40
Data Calling Tone command 31
Data Carrier Detect command 26
data compression 32, 52
data mode 22, 25, 64
Data Set Ready Control command 28
Data Terminal Ready command 27
DCD Control command 26
default settings 16, 27
diagnostic information, displaying 24
Dial command 23
Dial Stored Telephone Number
command 24
dial string modifiers 23
Dial-Up Networking 19–20
dialing tones 40
digital loopback tests 64–66
disconnect delay 40
&K 27
&Q 27, 52
&S 28
attention code 23
autoanswer 22, 40, 52
autobaud 16
Display Current Settings command
28
Distinctive Ring command 38
DSR Control command 28
DTE rate 16
DTR (Data Terminal Ready) Control
command 27, 52
&T 28
&V 28
&W 16, 28, 46, 47
&Z= 28
+++AT 39
+DCS= 32
+DR= 32
+DS44= 32
+ES= 33
+MS= 34
B
backspace character, setting 40
baud rate 16
Bell 212A mode 23
blacklisting 31
Break Control command 29
break signal 29
E
Echo Command Mode Characters
command 24
Echo Online Data Characters
command 24
Enable Synchronous Buffered Mode
command 33
+MS=? 32, 34
+MS? 33, 34
+PCW= 35
+PIG= 36
+PMH= 36
+PMHF 36
+PMHR= 36
+PMHT= 37
+PQC= 37
+VCID= 38
+VDR= 38
-C 31
C
call waiting 35, 51
Call Waiting Enable command 35
Caller ID 2, 16, 38, 40, 52, 53
Caller ID Selection command 38
Canadian regulations 58–60
carriage return character 40
carrier loss disconnect time, setting
40
COM Port assignment 9
comma, setting pause time 40
command mode 22
ENTER key 23
Enter Setup Password command 38
error control, setting 40, 42
error correction, disabling 64
Error Correction Mode Selection
command 30
escape character 40
escape sequence 22, 39
\A 28
\B 29
command string 22
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F
Index
MNP 5 data compression 31
MNP error correction 30
Result Codes Enable/Disable
command 25
Return Online to Data Mode
command 25
fallback 25
Fallback and Fall Forward
command 31
fax communications 19–20
faxing from a Windows application
19
FCC regulations 56–57
firmware
Modem on Hold 8, 36, 37
Modem on Hold Enable command 36
Modem on Hold Initiate command
36
Modem on Hold Timer command 37
Modem Reset command 26
Modulation Handshake command 25
Modulation Selection command 34
Monitor Speaker Mode command 25
Multi-Tech Internet sites 69
rings, setting number of 16, 40
ROM checksum 24
S
S-registers 40–44
reading 25
S0 16, 40
S1 40
S2 40
S3 40
S4 40
S5 40
upgrading 70–72
version 24
flash 36
flash memory 70
Flash Wizard upgrade utility 71
flow control 27, 30
Flow Control Selection command
27, 30
N
New Zealand regulations 59
S6 40
S7 40
O
on-hook/off-hook 24
online command mode 22
S8 40
S9 40, 47
S10 40
S11 40
G
garbage characters 53
Global Wizard 15
Guard Tone Control command 27
P
S28 40
patch cord for sound card 4, 7
pause time for comma, setting 40
PCM Upstream Ignore command 36
phone connection 6
PhoneTools program 18
Plug and Play 2
programs, communication 16
Protocol Result Code command 30
protocols 52
S30 40
S35 40
S36 40
S37 41
S38 41
S42 42
S48 42
S89 42
H
H.324 video 33
handshake 25
hangup command 24
hangup delay 40
Hook Control command 24
S108 42
Pulse Dialing command 25
S109 42
setting 25
safety 4
Select Maximum MNP Block Size
command 28
Select V.44 Data Compression
command 32
I
inactivity timer 40
Q
Inactivity Timer command 30
Industry Canada regulations 58–60
Information Request command 24
initialization strings 16, 22, 49
installation and setup 4–16
international restrictions 60
Internet addresses 69
Quick Connect 37
Quick Connect Control command 37
serial port 16
R
servicing your modem 57
Set Register Value command 25
software, communication 16
software installation
in Windows 2000 13
in Windows NT 11
solving problems 49–54
sound card connection 7
Speaker Codec Loopback command
28
Speaker Mode command 25
speakerphone 7, 54
specifications, technical 61–62
speed
rate, maximum data 41
Read Register Value command 25
reference materials 20
registering your product 67
regulatory compliance 56–60
remote configuration 46–47
escape character 40, 47
L
line connection 6
line feed character 40
Linux 73–75
Load Factory Settings command
16, 27
local analog loopback test 63–64
local digital loopback test 65–66
loopback tests 54, 63–66
lost data 52
escape sequence 39
remote digital loopback test 64–65
remote node operation 19
removing previous modems 14
Repeat command 23
required equipment 4
resetting the modem 26, 27
Result Code Format command 26
Result Code Options command 26
Result Code Selection command 26
result codes 22, 30, 43–44, 50
maximum 41
serial port 16
speed conversion (data buffer)
27, 29
standby mode delay time 42
M
messages 43–44
microphone 7
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Index
Store Current Configuration
V
W
command 16, 28
V.22 mode 23
V.22bis Guard Tone Control
command 27
wait time for dial tone 40
warranty 56, 67
Windows operating systems 8, 8–16
Store Dialing Command 28
Store Setup Password command 38
Sync/Async Mode command 52
synchronous buffered mode 33
V.25 data calling tone 31, 40
V.34 modulation, enabling 40
V.42 error correction 30
V.42bis Compression Control
command 31
V.42bis data compression 31
V.44 data compression 32
V.44 Data Compression command
32
V.44 Data Compression Reporting
command 32
V.54 tests 28, 63–66
V.92 mode 34, 35, 36, 37
V.92 Modem Hook Flash command
36
World Wide Web 20
X
T
Xmodem 52
XON/XOFF Pacing Control
command 27
XON/XOFF Pass-Through
command 30
technical specifications 61–62
telephone
connecting 6
line 50
terminal mode 49
testing the modem 28, 50
fax 19–20
loopback tests 63–66
voice communications 53–54
Tone Dialing command 26
tones, dialing 40
Y
Ymodem/G protocol 52
Z
video 33
View Numbers in Blacklist
command 31
Transmit Break command 29
troubleshooting 49–54
Zmodem protocol 52
voice commands 28
voice mail 7, 54
voice tests 53–54
U
upgrading the modem 70–72
upstream mode 36
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