1. GPRS Modem Introduction
1. 1  Key Features:
1. 1. 1  Support EGSM900, DCS1800, DCS1900MHz network, and compatible with GSM phase2/2+
1. 1. 2  Support China Mobile GPRS network, the speed is 171. 2Kbps.
1. 1. 3  Support Standard USB port
1. 1. 4  Support GPRS Class 10 technology.
1. 1. 5  Access to internet to browse, receive, send information conveniently.
1. 1. 6  Support voice calling with a large size phone book and long time calling.
1. 1. 7  Support English SMS.
1. 1. 8  Muti-receiver SMS function.
1. 1. 9  Support many operation systems, offer Windows operation diver. High compatibility.
1. 1. 10  PCMCIA application software for calling and message. It makes easy for the network provider to sell them separately or together.
1. 1. 11  LED indicator
1. 1. 12  Show the online time table, and accumulative total.

1. 2  Performance Specification
General Specification:
LASS 10, Speed can up to 171. 2Kbp(Depend on local network
Sleep Current: Laptop < 20mA
Pressure: 3. 0V ~3. 6V
Working Temperature: -20 to 60
Store Temperature: -3 to 8
Size: 87mm x 54mm x 5mm
Basic Specification
Long-distance control with AT command.
Voice communication and urgent calling.
The fastest speed is 171. 2Kbp(Depend on local network)
Programming Language: 13k QCELP(IS-733), 8k EVRC(IS-127)
SMS(IS-637-A): Support English and Chinese. And offer message edit function.
Words and PDU
Point to Point(MT/MO)