RS232 CDMA Modem:
Based on Wavecom module Q2358C/2438F
800 or 800/1900MHZ
Industrial design
Aluminum casing
Wireless access to internet
Standard RS232 interface.
With TCP/IP stack
800/1900MHz
CDMA2000 1x RTT technology
SIM Application Toolkit
3V movable UIM slot 
Maximum transmitting speed 153KBps
Double tone multi- frequency function (DTMF)
Send and receive SMS, data, fax, e-mail and voice
Always on-line
Input voltage: 5V-25V
Standby current: 3.8mA
Working current: 150mA
Radio frequency power output: 2W
Antenna with high sensitivity
Working temperature: -30-+60
Storage temperature: -35-+70
Size:98*55*25mm
Weight:130g
Accessories: AC/DC adaptor, RS232 cable, antenna, 2 mounting plates, CD