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 Model: HTM-442



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4-FXS Port with 4-FXO Port.
Support dual protocols: ITU-H.323 V4 and IETF SIP V2
Provide 4 RJ-11 ports for a POTS phone or a PBX's trunk line
Provide 2 RJ-45 Ethernet Ports
Provide 4 RJ-11 ports for PSTN Life Line
Support call forward/transfer/hold, phone book
Support G.711 A/μ law, G.729A/B, G.723.1 Codecs
Support QoS, NAT transversal and router function
Support VAD, CNG, EC