... (SMS) 2.Voice & LCD Display 3.CLID,Signal,Power 4.Phone,fax,data GSM car fax voice data terminalFeatures:1. GPRS packet data ... hold, callForwarding, call barring, multi-party calling6. Single jack or dual jack for voice and fax operation7. DTMF and pulse dialing8 ... 2+GSM 1800/1900 (option) TIA/EIA J-STD-0072. Transmit PowerGSM 850 & 900: 2 wattsGSM 1800 & 1900: 1 watt3. Frequency RangesGSM ...