Table of Contents
Multi-Tech Systems, Inc. MultiModem GPRS USB Wireless Modem User Guide 3
Chapter 1 – Product Description and Specifications ................................................................................................ 4
Product Description .............................................................................................................................................. 4
Features ................................................................................................................................................................. 4
Safety ..................................................................................................................................................................... 5
General Safety ................................................................................................................................................. 5
RF Interference Issues ..................................................................................................................................... 5
Vehicle Safety .................................................................................................................................................. 5
Maintenance of Your Modem ........................................................................................................................... 5
Your Responsibility .......................................................................................................................................... 5
Package Contents ................................................................................................................................................. 6
General Specifications ......................................................................................................................................... 7
Functions – GSM/GPRS Modes ........................................................................................................................... 7
Electrical Specifications ....................................................................................................................................... 7
RF Specifications .................................................................................................................................................. 7
Antenna Specifications ........................................................................................................................................ 8
GSM/EGSM Antenna Requirements/Specifications ......................................................................................... 8
Antennas Available from Multi-Tech Systems, Inc. .......................................................................................... 8
PTCRB Requirements Note ............................................................................................................................. 8
FCC Requirements Note .................................................................................................................................. 8
Interfaces ............................................................................................................................................................... 8
AT Command Reference Guides ......................................................................................................................... 8
Chapter 2 – Activation and Installation ...................................................................................................................... 9
Activate Your Wireless Account .......................................................................................................................... 9
Insert the SIM Card into the Holder ..................................................................................................................... 9
Connect the Antenna and USB Cable ................................................................................................................. 9
Handset Connection (Optional) ........................................................................................................................... 9
Attach the Modem to a Flat Surface .................................................................................................................. 10
Install the Modem Driver .................................................................................................................................... 11
Installing the Modem Driver in Windows Vista ............................................................................................... 11
Installing the Modem Driver in Windows Server 2008, XP, 2003 .................................................................. 17
Installing the Serial Port ................................................................................................................................. 17
Chapter 3 – Using Your Wireless Modem ................................................................................................................ 24
Changing the GPRS Band .................................................................................................................................. 24
Phone Number for the Wireless Modem ........................................................................................................... 24
Examples of Useful AT Commands ................................................................................................................... 24
Verifying Signal Strength ............................................................................................................................... 25
Checking Network Registration and Roaming Status ..................................................................................... 25
Checking the Modem’s Identity ...................................................................................................................... 25
Establishing a Voice Call ............................................................................................................................... 25
Establishing a Circuit-Switched Data (CSD) Connection ............................................................................... 26
Answering a Circuit-Switched Data (CSD) Connection .................................................................................. 26
Using Short Message Services (SMS) ............................................................................................................... 26
SMS Examples .............................................................................................................................................. 27
Internet Access ................................................................................................................................................... 29
Connecting to the GPRS Network for Internet Access ................................................................................... 29
Chapter 4 – Troubleshooting and Frequently Asked Questions ............................................................................ 31
Troubleshooting Examples ................................................................................................................................ 31
Frequently Asked Questions ............................................................................................................................. 32
Appendix A - Waste Electrical and Electronic Equipment (WEEE) Statement ..................................................... 33