GSM Modem.
Network : GSM/GPRS
Frequency band : 850/900/1800/1900MHz
Dimensions : 105*75*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).