CDMA/GSM fixed Wireless Terminal (direct supplier) 1)lock card,lock terminal 2)polar-reverse,12/16 KHz pulse signal 3)GPRS 4 line CDMA/GSM fixed Wireless Terminal Unique Functions1,CDMA cellular network outgoing.2,CDMA cellular network incoming.3,DTMF Caller ID.4,Support secondary dial.5,Lock card, lock terminal.6,Send polarity reversal signal for billing meter while connection.7,Sending 12/16KHz ...