Voip gateway with FXO
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VOIP audio gateway with single FXS port, FXO port and Router;
Supports SIP2.0 (RFC3261) , TCP/UDP/IP, RTP/RTCP, HTTP, ICMP ARP/RARP, DNS, DHCP, NTP, PPPoE, STUN, TFTP etc.
Support making or receiving calls from PSTN network (by the FXO Port) , it fits intelligently to the different countries standards of off hook tone with FXO port.
Supports the normal standards of encryption and certification. (DIGEST using MD5 and MD5-sess)
Support CALL Progress free enactment function.
The FXO port of HT611A busy tone check, can check hang up automatically in three seconds. Without hand setting( withhold hand setting) , sending bye or cancel message automatically when handed up.
Support the volume adjustment of gateway
Support SIP encrypts mode, avoid force-out
Support remote upgrade and upgrade configuration function
Double modes in busy signal testing intelligently
Auto-calling router (PSTN TO VOIP, VOIP TO PSTN) .
Supports remote update