Main features:
Provide accurate reverse polarity billing signal
Display Caller ID Add prefixal code automatically: The telephone setting can be set up to add the local area code when dialing local fixed calls and add IP prefixal code when dialing long-distance calls.
Locking wireless terminal, locking SIM card, locking service provider and locking districts ( Optional)
Parameter management: Parameters can be modified by hand via the connected telephone.
Set up or cancel call diverting
Support PBX Adjusting the volume of voice: microphone volume and speaker volume can be adjusted separately.
4-in-1 antenna combiner is used: SCG-8QE use 2 antenna; SCG-4QE use 1 antenna.

Technical Specifications
Environmental Temperature: -10¡æ to +40¡æ .Relative Humidity: 10% to 95%
Air Pressure: 86Kpa to 106Kpa
Environmental Noise: ¡Ü60dB(A)
Working Frequency:
Automatically switch among GSM850Mhz /900 MHz/ 1800MHz/1900Mhz
Frequency Stability: Better than 2.5 PPM
Signal Sensitivity: -103dBM
Transmit Power: £¼2W
Power supply: AC 220V?5V.