... 5,AT Command 16 channel USB gsm modem/ sim box modem Description:Our gsm modem is made of Wavecom modules. There are ... chain business model) · Government agencies or large townshipKey FeaturesUSB/RS232 GSM modem poolBased on Wavecom industrial modules Q24plus,Q2406,Q2303,Q2403GSM: ... Server and Pro)1, Insert Sim card into device2, Install Driver. 3, Install Software. We provide free software named SMS ...