This AP-FXO4 H/W card supports the four(4) channel FXO(Foreign Exchange Office) analog interface port(4xRJ11) and can be used in rack type midrange VoiceFinder VoIP gateway series of AddPac Technology.
Using this AP-FXO4 analog interface module, VoiceFinder VoIP gateways provide analog line Interface solutions that can interface to Private Branch Exchange (PBX), PSTN line, etc.
