Features:
 Dual band GSM 900/1800Mhz (GSM 850/1900Mhz)
 Industrial GSM module embedded
 LCD display, Caller ID, Support DTMF and FSK
 Built in li-battery (optional)
 Trunk port of PBX access (extention port of PBX access optional)
 Redial, call divert , call waiting, call conference support
 Hand-Free support
 Call records , 
 PSTN access ,PC SMS, PC fax (optional)
 GPRS (optional)
 Polarity reverse and 12/16K pulse for billing (optional)
 G3 analogue Fax (optional)
Technical Specification
Air Interface Standard•
GSM 900/1800 Phase 2+
• GSM850/1900
Transmit Power
• GSM 850/900: 2 watts
• GSM 1800/1900: 1 watt
Environment
• Operating temperature range: -10°C to +55°C
• Storage temperature range: -20°C to + 60°C
• Humidity: 5% to 95%
AC-to-DC Switching Power Supply
• Voltage: 100 - 300 V AC
• Frequency: 50/60 Hz