... 3.RJ11 interface 4.USB port GSM fixed wireless terminal ,GSM FWT for FXO and PBX Detailed Product Description GSM fixed wirless terminal ... Main Functions: 1. Using SIM card and suitable for GSM850,900,1800,1900MHz (optional) 2. Making & answering ... and power adapterLink with the DV power .Start your call GSM FWT pics show GSM fixed wireless terminal ,GSM FWT for FXO and ...