1.gsm fixed wireless terminal 2.dual band/quad band 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 calls after connecting to telephone set 3.Caller ID 4. Available to connect with telephone set, PBX, ...