... different function and of course different price,we have wavecom modem with Q2303,Q2403,Q2406,Q24Plus. Q2303 support sms.900 ... with separate power switch Each individual module can be demolished Industrial chassis, elegant shell Brief introduction The device built-in ... modem. It uses the development of WAVECOM module, 100-250V power supply, can be long time stability, generous luxury housing. industrial ...