4 line GSM Fixed Wireless Terminal 1)lock card,lock terminal 2) ... 3)support GPRS 4 line GSM Fixed Wireless Terminal Unique Functions1,GSM cellular network outgoing.2,GSM cellular network incoming.3, ... billing meter. (Optional)Technical Specifications1,Work frequency: GSM 900MHZ/1800MHZ or GSM 850/900/1800/1900MHZ2,Power: ≤2 W3,Sensitivity ... %9,Insertion loss: ≤0.5dB 4 line GSM Fixed Wireless Terminal/FWT