This publication may not be reproduced, in whole or in part, without prior expressed written permission from MultiTech Systems, Inc. All rights reserved.
Multi-Tech Systems, Inc. makes no representations or warranties with respect to the contents hereof and
specifically disclaims any implied warranties of merchantability or fitness for any particular purpose. Furthermore,
Multi-Tech Systems, Inc. reserves the right to revise this publication and to make changes from time-to-time in the
content hereof without obligation of Multi-Tech Systems, Inc. to notify any person or organization of such revisions
or changes.
Record of Revisions
RevisionDescription
AManual released.
(4/30/99)
BAdded installation procedure for Windows 2000; %A1, &C2, &En Result codes and S-18
(3/3/00)S-Register.
CAdded info on Windows ME, Flash Wizard, & Global Wizard.
(5/13/01)
DAdded info on PhoneTools.
(3/13/03)
Patents
This Product is covered by one or more of the following U.S. Patent Numbers: 5.301.274; 5.309.562; 5.355.365;
5.355.653; 5.452.289; 5.453.986. Other Patents Pending.
Trademarks
MultiMobileUSB, Multi-Tech, and the Multi-Tech logo are trademarks of Multi-Tech Systems, Inc.
IBM is a trademark of International Business Machines Corporation.
MNP and Microcom Network Protocol are trademarks of Microcom, Inc.
K56flex and V.90 are trademarks of Rockwell International Corporation and Lucent Technologies Corporation.
Microsoft, Windows, Windows 98, Windows 95, and Windows 2000 are either registered trademarks or trademarks
of Microsoft Corporation in the United States and/or other countries.
Notice
Though these modems are capable of 56 Kbps download performance, line impairments, public telephone
infrastructure and other external technological factors currently prevent maximum 56 Kbps connections.
Universal Serial Bus (USB)......................................................................................................................... 6
What Can You Do with Your Modem? .......................................................................................................... 7
Features ..................................................................................................................................................... 8
Data ..................................................................................................................................................... 8
Connecting to the Computer (USB) .................................................................................................... 9
Connecting to the Telephone Line (LINE)............................................................................................ 9
Surge Protectors and Lightning ............................................................................................................ 9
Front Panel ................................................................................................................................................. 9
Related Manuals ........................................................................................................................................11
Chapter 3 - AT Commands, S-Registers and Result Codes
AT Commands ...........................................................................................................................................32
AT Command Summary .............................................................................................................................33
Result Codes ............................................................................................................................................. 45
Service ................................................................................................................................................ 64
Index .............................................................................................................77
iv
Chapter 1 - Introduction and Description
MultMobileUSB User Guide
Introduction
Welcome to the world of data communications. You have acquired one of the finest intelligent data and
fax modems available today from one of Americas oldest and most respected modem manufacturers:
Multi-Tech Systems, Inc. This users guide will help you install, configure, test and use your modem.
Product Description
The MT5634MU modem incorporates V.90 technology, which enables Internet connections at data
rates up to 56 Kbps* over standard telephone lines. V.90 technology is able to send data downstream
from the Internet to your computer at these speeds because data on the telephone network typically is
converted from digital to analog only once before it reaches your modem. Upstream transmissions, and
transmissions between client modems, are limited to data rates of 33.6 Kbps, as are downstream
transmissions that are converted more than once on the telephone network.
The MT5634MU is Plug-and-Play in Windows 2000, Windows ME, Windows 98, and Windows 95
operating systems with interactive automatic dialing and command mode configuration. In standard
mode, you can store up to two command lines or telephone numbers of up to 40 characters each in
the modems nonvolatile memory. The modem pulse- or tone-dials, and recognizes dial tones and busy
signals for reliable call-progress detection. The modem can detect AT&T calling card tones. It also has
Caller ID, remote configuration and incorporates self-resetting lightning protection. The MT5634MU is
FCC-registered for connection without notification to the telephone company.
The MT5634MU is a full-duplex intelligent modem with V.42 error correction, V.42bis data
compression, and V.17 (14,400 bps), Class 1 and 2, Group 3 fax capabilities.
The MT5634MU operates with Multi-Techs Global Wizard program. Telephone company technical
requirements differ from country to country. In the Global Wizard program, you simply specify the
country in which you will operate, selecting from a pull-down menu. Global Wizard does the rest,
automatically setting up the correct operating parameters for your modem to operate in your country.
Multi-Techs Flash Wizard utility allows MT5634MU firmware to be updated by the user.
Universal Serial Bus (USB)
Universal Serial Bus (USB), defined by a consortium of industry leaders, permits connection of multiple
low-speed and medium speed computer peripheral devices such as telephones, modems, printers,
keyboards, mice, and scanners; all from a single personal computer port. The specification, based on
an open architecture is quickly becoming a standard feature in new desktop and notebook computers.
Figure 1-1: MT5634MU
* Although K56flex technology is capable of downloads of up to 56 Kbps, FCC regulations currently
restrict ISP modems to downloads of 53 Kbps.
6
What Can You Do with Your Modem?
Your Multi-Tech MultiMobile MT5634MU is the gateway to the exciting world of telecommunications.
You can use it to access commercial on-line information services such as America Online, Genie, and
Prodigy. These services provide access to databases, encyclopedias, stock reports, news, weather,
and shopping. They provide electronic mail (e-mail) links to subscribers of the same and other
services. Public message areas called forums allow subscribers to trade information and opinions on a
vast array of topics from A to Z, while vendor forums provide hardware and software support from MultiTech and other manufacturers. Online services also allow you to upload and download computer
programs, data files, and updated software such as video and printer drivers.
Your modem can also connect you to the Internet, an international computer network of universities,
libraries, businesses, and government agencies. Like the commercial online services, the Internet
provides e-mail services, public message areas, and access to information and software, much of it
easily accessed through the World Wide Web.
Other uses include direct links to colleagues with modems, to banks, and to service bureaus. You can
also telecommute with your fax modemwork at home while communicating with the office by modem
or fax.
And of course, you can use your modem to exchange faxes with any fax machine in the world,
enabling you to communicate quickly with businesses and organizations that do not have direct
modem communications.
Chapter 1 - Introduction and Description
7
MultMobileUSB User Guide
Features
Compliance with major ITU-T, TIA, and EIA international standards to ensure compatibility with
other modems.
Caller ID capability can identify a callers phone number (available only on U.S. products).
Limited warranty:Ten years
Data
Supports the V.90 standard for data transmission speeds up to 56 Kbps while maintaining
compatibility with lower-speed modems.
Supports the enhanced ITU-T V.34 standard, with data transmission speeds to 33.6 Kbps.
Supports asynchronous data rates at 56K, 33.6K, 31.2K, 28.8K, 26.4K, 24K, 21.6K, 19.2K,
16.8K, 14.4K, 12K, 9600, 4800, 2400, 1200, and 300 bps.
Supports automatic fallback to slower speeds in noisy line conditions, and fall-forward to faster
speeds as conditions improve.
ITU-T V.42 LAP-M and MNP Class 3 and 4 error correction.
ITU-T V.42bis (4-to-1) and MNP 5 (2-to-1) data compression.
Automatically disables data compression when transferring already-compressed files.
Autodial, redial, pulse (rotary) and touch-tone dial.
Dial tone and busy signal detection for reliable call-progress reporting.
Compatible with the standard AT command set used by most communication programs.
Fax
Supports V.17, Group 3 fax communication standards, allowing it to communicate with other
fax modems as well as with fax machines.
Responds to EIA/TIA Class 1 and 2 fax commands, enabling it to exchange editable and
encrypted faxes with Windows 95 computers.
Sends and receives faxes from your computer at 14,400 bps, 9600 bps, 7200 bps, 4800 bps,
2400 bps, or 300 bps.
Required Equipment
In addition to the contents of your modem package, you need the following equipment.
Computer: Your modem can only be connected to a computer with a USB port.
Telephone Line: You must have a telephone line with jack (connector) that accepts the cable
that comes with the modem. If you do not have a telephone jack near your computer, you
should install one before proceeding.
Do-it-yourself telephone extension kits and accessories are available wherever telephones are
sold. You may also hire an independent contractor or your local telephone company to install
an extension. If you want a separate line for your fax modem, you must contact your telephone
company.
Communications Software: To operate your modem, you must have data communications
and fax communications software (included with the modem). Data communications software
simplifies control of the modem by guiding you through the process of selecting your serial
port, your port speed, and other variables, and then storing your settings, including frequently
called phone numbers, so they can be recalled with the stroke of a key or the click of a
mouse. Data communications software must be set up, or configured, before you can use it.
8
Connections
To use your modem, you must connect the MT5634MUs USB cable connector to your computer
(USB) and to a telephone line (LINE).
Chapter 1 - Introduction and Description
Connecting to the Computer (USB)
Connect the USB connector on the MT5634MU to a USB connector on the back of your computer.
Connecting to the Telephone Line (LINE)
Plug one end of the cable provided with the modem into the telephone jack in your home or office. Plug
the other end into the LINE jack on the modem.
Note: The Federal Communications Commission (FCC), Industry Canada, and other regulatory
agencies impose certain restrictions on equipment connected to public telephone systems. See
Appendix A for more information.
Surge Protectors and Lightning
Your modem has self-resetting lightning protection to protect it from electrical spikes on the telephone
line. During an electrical storm, your safest course is to unplug your computer equipment from both the
power outlet and the telephone line.
Front Panel
PC
Figure 1-2: USB and communications connectors.
USB Connector
RJ-11 Connector
The MT5634MU has 4 LEDs on the front panel indicating status, configuration, and activity:
Figure 1-3: Front panel
Data. The Data LED flashes when the modem is transmitting/receiving data to/from another
modem.
Carrier Detect. The CD LED lights when the modem detects a valid carrier signal from another
modem. It is on when the modem is communicating with the other modem and off when the link is
broken.
Off-Hook. The OH LED lights when the modem is off-hook, which occurs when the modem is
dialing, online, or answering a call. The LED flashes when the modem pulse-dials.
Terminal Ready. The TR LED lights when Windows detects and initializes the modem.
9
MultMobileUSB User Guide
Technical Specifications
Your MultiMobileUSB fax modem meets the following specifications:
Trade NameMultiMobileUSB
Model NumberMT5634MU
Client-to-ServerV.90 or K56flex speeds when accessing an ISP type V.90 or
Carrier FrequenciesTransmit originate:390 Hz mark
ITU-T V.23450 Hz space
(1200 bps)Receive originate:1300 Hz mark
(actual speed depends on server capabilities/line conditions) *
V.32, V.22bis, V.22; Bell 212A and 103/113; ITU-T V.29, V.42, V.42bis;
ITU-T V.21 & V.23 in international versions
TIA/EIA TR29.2
dial; pulse or tone dial; dial pauses; auto answer; caller ID; EIA
extended automode; adaptive line probing; automatic symbol and
carrier frequency during start-up, retrain, and rate renegotiation; call
status display, auto-parity and data rate selections; keyboardcontrolled modem options; non-volatile memory; on-screen displays
for modem option parameters; command lines of up to 40 characters
each; help menus; remote configuration;
(non-trellis), QAM with trellis-coded modulation (TCM) at 9600,
12,000, 14,400, 16,800, 19,200, 21,600, 24,000, 26,400, 28,800,
31,200, 33,600, and 56,000 bps
V.27ter DPSK at 4800 and 2400 bps
V.29 QAM at 9600 and 7200 bps
V.17TCM at 14400, 12000, 9600, and 7200 bps
2100 Hz space
Transmit answer:1300 Hz mark
2100 Hz space
Receive answer: 390 Hz mark
450 Hz space
10
Chapter 1 - Introduction and Description
Carrier FrequenciesTransmit originate:980 Hz mark
ITU-T V.211180 Hz space
(0300 bps)Receive originate:1650 Hz mark
1850 Hz space
Transmit answer:1650 Hz mark
1850 Hz space
Receive answer:980 Hz mark
1180 Hz space
Carrier FrequenciesTransmit originate:1270 Hz mark
Bell 103/1131070 Hz space
(0300 bps)Receive originate:2225 Hz mark
2025 Hz space
Transmit answer:2225 Hz mark
2025 Hz space
Receive answer:1270 Hz mark
1070 Hz space
Fax CarrierV.21 Ch2 (half duplex):
Frequencies1650 Hz mark,1850 HZ space for transmit originate
1650 HZ mark,1850 Hz space for transmit answer
V.27ter:1800 Hz originate/answer
V.29 QAM:1800 Hz originate/answer
V.17 TCM:1800 Hz originate/answer
Transmit Level-11 dBm (dial-up)
Frequency Stability±0.01%
Receiver Sensitivity-43 dBm under worst-case conditions
AGC Dynamic Range43 dB
ConnectorsUSB connector; one RJ-11 phone jack
CablesOne RJ-11 phone cable
Note: Any cables connected to the computer should be shielded to
reduce interference.
DiagnosticsPower-on self test, local analog loop, local digital loop, remote digital
loop.
IndicatorsLEDs for Data, Carrier Detect, Off Hook, Terminal Ready
EnvironmentalTemperature range 0°50°C (32°120°F); humidity range 2090%
(non-condensing)
Dimensions3 cm wide x 8 cm long x 2.5 cm high (1.25" x 3.13" x 1.0")
Weight62 g (2.2 oz)
Limited Warranty10 years
Related Manuals
The following manuals are available on request.
82039200Voice +V Commands Developer's Kit
82076200MT56XX Fax Class 1 Developers Guide
82006501TR29.2 (Proposed) Class 2 Fax Command Reference Manual
11
MultMobileUSB User Guide
12
Chapter 2 - Installation
MultiMobileUSB User Guide
Unpacking
The shipping box contains the MT5634MU, one RJ-11 cable, your Quick Start Guide, and one
Installation CD (which contains the MT5634MU driver software, Global Wizard, Flash Wizard, the
PhoneTools software package and documentation materials, including this on-line MT5634MU User
Guide). Inspect the contents for signs of any shipping damage. If damage is observed, do not power up
the unit; contact Multi-Techs Technical Support for advice (see Appendix D). If no damage is observed,
perform the cabling procedure.
Installation CD
Four USB V.90 Modems
Quick Start Guide
You supply
A computer with an unused USB port
A nearby telephone line jack
Safety Warning Telecom
1. Never install telephone wiring during a lightning storm.
2. Never install a telephone jack in wet locations unless the jack is specifically designed for wet
locations.
3. This product is to be used with UL and cUL listed computers.
4. Never touch uninsulated telephone wires or terminals unless the telephone line has been
disconnected at the network interface.
5. Use caution when installing or modifying telephone lines.
6. Avoid using a telephone (other than a cordless type) during an electrical storm. There may be a
remote risk of electrical shock from lightning.
M
A
D
E
IN
U
.S
.
A
Figure 2-1: Unpacking
.A
.S
U
IN
E
D
A
M
7. Do not use a telephone in the vicinity of a gas leak.
8. To reduce the risk of fire, use only 26 AWG or larger telecommunication line cord.
14
Step 1: Connect the Modem to Your System
Connect the MT5634MU to your computers USB port and connect the telephone line to your
MT5634MU and a telephone wall jack.
Figure 2-2: Modem connections
Chapter 2 - Installation
USB Connection
Plug the USB cable connector on the modem into a USB port connector on your computer.
Line Connection
Plug one end of the phone cable into the modems LINE jack, and the other end into a phone line wall
jack.
Note: The Federal Communications Commission (FCC), and Industry Canada impose certain
restrictions on equipment connected to public telephone systems. See Appendix A for more
information.
15
MultiMobileUSB User Guide
Step 2: Installing the Modem
The MT5634MU is compatible with Windows 2000, Windows ME, Windows 98, and some versions of
Windows 95.
Installation in Windows 2000
1. Power up your Windows 2000 system.
2. If you have not already done so, connect the MT5634MU to your computers USB port and connect
the telephone line to your MT5634MU and a telephone wall jack.
3. Windows will detect that the new modem is present and indicate that it's in the process of
installing. Then the Welcome screen of the Found New Hardware Wizard appears.
Click Next >.
4. The Install Hardware Device Drivers screen appears indicating that it will install the hardware
device drivers.
Verify that the "Search for a suitable driver for my device (recommended)" is selected and then
click Next >.
16
Chapter 2 - Installation
5. The Locate Driver Files screen appears asking where you want Windows to search for the driver
files.
Verify that the Specify a location option is the only box selected, place the MT5634MU
Installation CD into your CD drive, and click Next >.
6. The next screen will say Insert the manufacturers installation disk into the drive selected and then
click OK.
Click on the Browse button (when prompted to insert a disk into drive A:\, click Cancel). Navigate
to your computers CD-ROM drive. Select the folder DRIVERS\WIN 2000. Select the file
MDMMTUSB.INFand click Open.
7. Then the Driver Files Search Results screen appears indicating that Windows has found the
proper driver from the MT5634MU Installation CD.
Click Next > to install the selected driver.
17
MultiMobileUSB User Guide
8. The Digital Signature Not Found screen appears.
Click Yes to continue with the installation.
NOTE: This Microsoft operating system searches for a digital signature when you install any new
hardware. If a "Digital Signature Not Found" screen appears, simply click the YES button to continue
installation. Although Multi-Tech submits all eligible products to Microsoft for certification, the turnaround time is subject to many factors. Not having a digital signature does not affect product
performance in any way.
9. A transient Copying Files screen appears briefly indicating that driver files are being copied to
your computers hard drive. Then a completion screen appears indicating that Windows has
finished installing the driver.
Click Finish to complete the installation and exit the wizard.
18
Chapter 2 - Installation
After installation has been completed, you should test the operation of your new MT5634MU by
registering it. Key in the URL given below and follow the on-line instructions:
http://www.multitech.com/register
Installation in Windows ME
The MT5634MU driver files for Windows ME are installed in two groups, as described below. The
installation wizard begins by installing certain driver files. At that point, Windows ME detects the
modem as a new device. Then the installation wizard runs again to install the remaining driver files.
1.Power up your Windows ME computer.
2.Connect the MT5634MU to your computers USB port. Then connect one end of the provided
telephone line cord to your MT5634MU and the other end to a telephone wall jack.
3. Windows ME will detect that the new modem is present and launch the Add New HardwareWizard.
Place the MT5634MU Installation CD into the CD drive of your PC. The first Add New HardwareWizard screen will appear with the message What would you like to do?
Choose Specify the location of the driver (Advanced) and click Next>.
19
MultiMobileUSB User Guide
4. At the Add New Hardware Wizard Windows will search for new drivers... screen, uncheck the
Removable Media button (if necessary) and check Specify a location.
5.Click the Browse button and navigate to the Windows ME subfolder of the Drivers folder on the
MT5634MU Installation CD. Then click OK. Click Cancel if it prompts you for a floppy disk.
20
Chapter 2 - Installation
6. The Add New Hardware Wizard Windows driver file search ... screen appears.
Click Next>.
7. Transient progress screens will appear while files are being copied. After the files have been
copied to your PC, an Add New Hardware Wizard screen will appear indicating that Windows has
finished installing this the first of two drivers.
Click Finish to complete the installation of this first driver. The wizard will close.
21
MultiMobileUSB User Guide
8. Windows ME will now detect an Unknown Device and begin another Add New Hardware
Wizard, again asking What would you like to do?
Choose Specify the location of the driver (Advanced) and click Next>.
9.At the next screen, (the Add New Hardware Wizard Windows will search for new drivers...
screen), uncheck the Removable Media button (if necessary) and check Specify a location.
Click Next>.
Click Next>.
22
Chapter 2 - Installation
10. Transient screens will appear while files are being copied. The Add New Hardware Wizard
Windows driver file search screen will appear.
Click Next>.
11. After files have been copied, a completion screen will appear.
Click Finish to complete the installation of this the second driver. The wizard will close.
12. Remove the MT5634MU Installation CD from the computers CD drive.
13. Test the operation of your modem by registering it online at http://www.multitech.com/register.
23
MultiMobileUSB User Guide
Installation in Windows 98
1. Power up your Windows 98 system.
2. If you have not already done so, connect the MT5634MU to your computers USB port and
connect the telephone line to your MT5634MU and a telephone wall jack.
3. Windows will detect that the new modem is present and launch the Add New Hardware Wizard
dialog box.
4. Place the MT5634MU Installation CD into your CD drive and
click Next > to proceed with the installation.
5. The Add New Hardware Wizard dialog box is displayed with the message What do you want
Windows to do?
Verify that the Search for the best driver for your device (Recommended). option is selected and
click Next >.
24
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