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
LED Interface...................................................................................................................................................8
AT Command Reference Guides.........................................................................................................................8
Chapter 2 – Activation and Installation......................................................................................................................9
Step 1 – Activate Your Wireless Account...........................................................................................................9
Step 2 – Insert the SIM Card into the Holder......................................................................................................9
Step 3 – Connect the Antenna and USB Cable.................................................................................................10
Step 4 – Handset Connection (Optional).......................................................................................................... 10
Step 5 – Attach the Modem to a Flat Surface (Optional)..................................................................................11
Step 6 – Install the Modem Driver......................................................................................................................12
Introduction....................................................................................................................................................12
Installing the Modem Driver in Windows XP/2003.........................................................................................12
Installing the Modem Driver in Windows 2000...............................................................................................16
Chapter 3 – Using Your Wireless Modem................................................................................................................19
Phone Number for the Wireless Modem...........................................................................................................19
Examples of Useful AT Commands...................................................................................................................19
Verifying Signal Strength...............................................................................................................................19
Checking Network Registration and Roaming Status.....................................................................................19
Checking the Modem’s Identity......................................................................................................................19
Establishing a Voice Call............................................................................................................................... 20
Establishing a Circuit-Switched Data (CSD) Connection...............................................................................20
Answering a Circuit-Switched Data (CSD) Connection..................................................................................20
Using Short Message Services (SMS)...............................................................................................................21
SMS Examples..............................................................................................................................................22
Internet Access...................................................................................................................................................24
Connecting to the GPRS Network for Internet Access...................................................................................24
Chapter 4 – Troubleshooting and Frequently Asked Questions............................................................................26
Troubleshooting Examples................................................................................................................................26
Frequently Asked Questions.............................................................................................................................27
Appendix A – Warranty and Repairs........................................................................................................................29
Appendix B - Waste Electrical and Electronic Equipment (WEEE) Statement.....................................................31
Appendix C – C-ROHS HT/TS Substance Concentration........................................................................................32