Using industry GSM MODULE

Chinese or English menu

Supports short messages

Support STK function

Recharge mobile fee by air, one KEY enter recharge interface for recharge and

Support printing, with Micro-printer for printing recharge bill and inquire result

Hand free , redial, flash and adjust the volume

Billing function : billing according tariff, and display call numbers, call duration, call fee

Locking telephone, locking SIM card, locking GSM network ID

RTC: display time and date

Remote wireless Management system

.Environmental Temperature: -10℃ to +40℃

.Relative Humidity: 10% to 95%
.Air Pressure: 86Kpa to 106Kpa
.Environmental Noise: ≤60dB (A)
.Working Frequency: Automatically switch between GSM 900 and GSM1800MHz
.Frequency Stability: Better than 2.5 PPM
.Signal Sensitivity: -103dBM
.Transmit Power: (2W
.Power supply: AC 220V±15V and rechargeable battery back-up