Description :

1. GSM 850/900/1800/1900MHz.
2. User-friendly installation (Plug & Play).
3. DTMF or FSK Caller ID.
4. LED indicators for signal strength, network and power.
5. Reverse polarity signal supporting.
6. DTMF and pulse dialing.
7. Emergency battery back-up.
8. SMS (optional).
9. Payphone metering pulse supporting (optional).
10. GPRS data transmission (optional).

Specification :

1. Air interface: GSM Phase I/GSM Phase II + compatible.

2. GSM frequency ranges: GSM 850/900/1800/1900MHz (Optional).

3. RF transmit power: 2W (900 MHz), 1W (1800/1900 MHz).

4. RF sensitivity: <-102 dBm.

5. Electricity power Supply: Input: AC220V/60Hz, Output :DC 6.5V.

6. Battery Power Supply: 1500mAh Ni-MH Batteries x 4, Talk Time: 4h, Standby time: 24h.

7. LED Indicators: •Power •Network status •Phone in use •Signal strength.

8. Connectors: 2 RJ-11 Interface jack for telephone, SMA antenna connector, DC power input jack.

9. Serial port for connecting PC.

10. Antenna: 2dbi Omni Antenna, High-gain antenna and cable as optional.

• 
  CDMA Fixed Wireless Telephones
• 
  Coin Operated Payphones
• 
  Payphone Billing Meter Gateway
• 
  GSM Chip Card Payphones
• 
  CDMA Fixed Cellular Terminals (Wireless)