Features:
1) Locking onto a specified GSM carrier and service area is programmable
2) Support SIM card locking (terminal refuses to take any other SIM card
except the one set to be accepted)
3) Designed for low power consumption and support Li-ion battery and
external DC adapter
4) Powerful encryption to ensure high security of data
5) Capable to retain operational parameters and data upon power breakdown
6) Provided with super password to access engineering mode for senior configuration
7) Support downloading parameter setting on the configuration program with
a data cable
8) Support PC fax and GPRS data function
9) Can be connected to PBX (PABX) for office use or VoIP gateways for
call terminations
10) Charge with charge meter for payphone use
11) Polarity reversal signal

Technical specifications:
1) GSM module wavecom
2) Four band GSM 850/900/1800/1900MHz
3) Signal receiving sensibility better than-105dBm
4) Power output max: 33 +/- 2dBm
5) Min: 5 +/- 5dBm max: 30 +/- 2dBm
6) Min: 0 +/- 5dBm
Environmental
1) Temperature - 10 C to + 60 C
2) Relative humidity 0% to 95%
3) Noise 4) Atmospheric pressure 86 to 106KPa
Electrical
1) Power consumption 2) Operating voltage DC 12V
3) Li-ion battery capacity 1,850mAH
4) Battery cycle life 500 to 1,000 cycles
5) Quoted talk time > 3 hours
6) Quoted standby time > 15 hours
Structural dimensions: 180mm x 122mm x 32mm