4 Port GSM VolP Gateway
8 Sim Card slots per a GSM Port
1 GSM Antenna (Internal 4-channel Antenna Combiner)
Voice DSP: G.711, G.729, G.723.1, etc
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VoiceFinder AP-GS3000 now comes with GSM Multi-SIM VoIP Modules installed. 

This GSM Multi-SIM VoIP Modules, AP-N1-GSM4S8 GSM VoIP Module, is a new 4-Port GSM Module (8 SIM card slots per GSM Port) for GSM Call Termination Service. This GSM VoIP Module supports Quad-Band (850/900/1800/1900MHz) GSM frequency, Eight(8) SIM card slots per GSM port, Hot-Swap Switch Button, One(1) GSM Antenna Interface. This GSM module has thirty-two (32) GSM SIM card slots internally. Also this module supports the Voice DSP for GSM call termination service based on VoIP Technology.
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