Features:
1) Supports GSM networks.
2) Simple to install and easy to maintain
3) Allow PIN code entering and reciprocal phone-card lock
4) Polarity reversal signal for metering
5) 3.5dBi gain antenna
6) Compatible to PABX
7) Outside antenna
8) Incoming numbers and dialing numbers block enable
9)Cost rate setting enable
10)Time, date, signal intensity display enable
11)LED Indicators for signal and power status
12) green background LCD display