Product Description This Terminal installed industrial type module and is the ideal solution for wireless voice and data communication either land line is not available or an additional phone is required. It can be used as a standard phone at home or in office. This equipment is with high receiving sensitivity strong transmitting power; especially apply to various of indoor location. Basic functions: 1 Voice 2 G3 analog fax 3 GPRS Data (optional) 4 Circuit switched digital PC fax, wireless connectivity for computer 5 Caller ID, call waiting, and 3-way calling 6 Line reversal, 12k/16k meter pulse for call charging 7 LED indicators for signal strength, battery, fax, and line use 8 Password lock and PIN code double protection 9 Emergency battery backup 10 High receiving sensitivity, strong transmitting power 11 Easy setup Power supply: Input power (V) 110 / 250 VAC 50 / 60Hz RJ-11 inter wire analogue phone mission Voice/ data Frequency Bands (dual bands) 900 /1800 /1900MHz or 850 /1800MHz /1900MHz Working Temperature -20C~ +55C Antenna External 1600mA rechargeable battery (Alternative back-up power supply: Ni, Li battery)