GSM Gateway 8RJ11 ports with 8simcards
GSM: 900MHz/1800MHz

Specification:

1. 8RJ11 ports with 8simcards
2. GSM: 900MHz/1800MHz 
3. Adopts industrial module(wavecom engine) to ensure good performance
4. Compatible to most telephones, PBX (for office use) and VoIP gateways (for call termination)
5. Provides reversal polarity signal for metering
6. Caller ID. With DTMF/FSK(option)
7.hide send caller id.