[Asterisk-Users] Analog GSM Gateways

[GSM]

Selling analog GSM gateways at 119.00 USD. Polarity reverse for "call answer" and "call end". Compatible with all Digium/Asterisk analog FXO cards. Suitable for low-traffic call termination, inbound calls from cellular network or for phone bill optimization applications.

Main Functions
   - Provide Accurate Anti-Polarity Signal 
   - Incoming Calls Display 
   - Add Prefixal Code Automatically 
   - Locking Wireless Terminal, Locking SIM Card, Locking Service Provider and Locking Districts
   - Network Management 
   - Parameter Management 
   - Telephone Numbers' Code Management 
   - Fast Transmit Telephone Numbers 
   - Resume Parameters 
   - Set up or Cancel Call Diverting 
   - Adjusting The Volume Of Voice  

Technical Specifications
   - Environmental Temperature: -10?C to +40?C 
   - Relative Humidity: 10% to 95% 
   - Air Pressure: 86Kpa to 106Kpa 
   - Environmental Noise: =60dB(A) 
   - Working Frequency: Automatically switch between GSM 900MHz and GSM 1800MHz 
   - Frequency Stability: Better Then 2.5 PPM 
   - Signal Sensitivity: -103 dBM 
   - Transmit Power: < 2W 
   - Power Supply: AC 220V ± 15V

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