VoIP FXO Gateways

VoIP FXO Gateways A VoIP FXO (Foreign Exchange Office) Gateway bridges the VoIP and PSTN networks by enabling both voice and fax communications.It offers an FXO interface to a traditional telephone line (PSTN) and an WAN Ethernet port interface to the IP Network. A connection can be initiated either from a VoIP user to a PSTN user or from a PSTN user to a VoIP user. It is a key component for building a hybrid communication systems with connections to both VoIP and PSTN networks.The key advantage is to make use of the IP network and local PSTN networks to save on international / long-distance phone expenses.Advent's VoIP FXO Gateways feature superb audio quality, reliable FXO detection, rich functionalities, and high-level integration. HT-322 (2-FX0 Port) Support dual protocols: ITU-H.323 V4 and IETF SIP V2 Provide 2 RJ-11 ports for PSTN lines or PBX's extensions Support single or multiple servers registrations Support G.711 A/μ law, G.729A/B, G.723.1 Codecs Support Multiple dial plans and line hunt Support QoS, NAT transversal and router function Support VAD, CNG, EC HT-342 (4-FX0 Port) Support dual protocols: ITU-H.323 V4 and IETF SIP V2 Provide 2 RJ-11 ports for PSTN lines or PBX's extensions Support single or multiple servers registrations Support G.711 A/μ law, G.729A/B, G.723.1 Codecs Support Multiple dial plans and line hunt Support QoS, NAT transversal and router function Support VAD, CNG, EC

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