GSM FWT/Fixed wireless terminal 1)lock card,lock terminal 2)support ... pulse signal 3)support GPRS. GSM FWT/Fixed wireless terminal Unique Functions 1,GSM cellular network outgoing.2,GSM cellular network incoming.3,DTMF ... phone billing meter. (Optional) Technical Specifications1,Work frequency: GSM 900MHZ/1800MHZ or GSM 850/900/1800/1900MHZ2,Power: ≤2 W3,Sensitivity: -104dB4 ...