... and Cinterion modules, the model number are as below: module Frequency supportQ2303900/1800MHZ smsQ2403900/1800MHZ Sms and mms.Q2406900/ ... sms,mms,EDGE and TCP/IPCDMA module Q2358C 800/1900mhzsms and mmsCDMA module Q2438F 800/1900mhzsms and mmsTC35,MC368 ... optional)Each channel with separate power switch Each individual module can be demolished industrial chassis, elegant shellKey FeaturesUSB GSM ...