MAIN FUNCTIONS &FEATURES 1 Simple to install and easy to maintain 2 Steady module (Sim340) & reliable design ensures good performance 3 Provide optimized circuit directly connecting the exchange device for extensions 4 Compatible to most telephones, PBX (for office use) & VoIP gateways (for call termination) 5 Connect to Alarm systems to realize wireless alarm (for security use) 6 Strong signals with high gain antenna 7 Attractive Plastic casing 8 SIM card support (3V, 5V) 9 DTMF CLIP (Caller ID display) 10 Provide reversal polarity signal, 12Khz, 16Khz (selectable) for metering 11 No noise &Clear voice 12 Suitable for wide voltage range &Low power consumption 13 Suitable for all kinds of weather & environment 14 RJ-11 ports (two extensions /phone and line (optional) ) 15 Locking PIN/ Network (optional) SPECIFICATIONS 1.Air Interface Standard GSM 900/1800 MHz Phase 2+ 2.Frequency Ranges Transmission Reception GSM 850 GSM 900 890~915MHz 935~960MHz GSM 1800 1710~1785MHz 1805~1880MHz GSM 1900 3.Channel Space: 200KHz 4.User line, bell signal: In line with GB/T15279 5.Max. Power: 0. 25W/0.5W 6.Consume Immobility: less than 25MA,Transmission less than 400MA 7.Sensitivity: -105db 8.Dialtone frequency: 450Mhz (Standard) 9.Surrounding Temperature: -10 degrees ~ +40 degrees; Relative humidity:45% ~ 90% (Without frost) 10.Atmosphere Pressure: 86 ~106Pka 11.Environment Noise: <60db 12.Antenna Amplifying: 3.5db(omni directional); 12db(certain direction /chosen direction) 13.AC Power Input:(AC100-230V,50/60Hz) Output: (12V 1A) Switching type /Transformer type Ac-adapter( optional) 14.Connector of Power: American/European/British type (Selectable).