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 GPRS network, the speed is 171.2Kbps. 1.1.3 Support Standard PIMCIA port ，PCI 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 1.2 Performance Specification ◆ General Specification: CLASS 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: -30℃ to 85℃ Size： 87mm x 54mm x 5mm contact person: david Email: