GSM Modem.

Network :  GSM/GPRS

Frequency band :   850/900/1800/1900MHz

Dimensions :  105*57*29mm 

Temperature :   -30°C~+75°C

Voltage :  5V

Consumption :   About 5mA Standby current

Interface :  UART or 485,SIM,POWER JACK,Network Status indicator,two channel audio.

Data rate :   DL:85.6kbps/UL:42.8kbps

Commands :   Standard AT commands

Highlights :  

                    1. Support TTS voice broadcast .

                    2. Software Openlink.

                    3. TCP/UDP/FTP Protocol.

                    4.GPS+BD(optional).