Call protocol: SIP (IMS compatible),
seamless compatible with all popular call agent.
Integrate heartbeat function and
support active/standby call agent.
Voice coding: ITU-T
G.711/G.723.1(5.3K/6.3Kbit/s)/G.729, auto-negotiate with call agent.
Echo cancellation exceeding ITU-T
G.165/G.168-2002, up to 128ms tail length.
Support high/low speed fax/Modem,
bypass fax, and T38 fax.
Support RFC2833 and redundant
RFC2833, difference rings, MD5 authentication, call forward, call waiting,
hot-line call, alarm clock, and all kinds of value-added voice service.
Multi-party conferencing.
Line testing according to GR-909.
IP address assignment: dynamic
PPPoE/DHCP Client and static IP.
Support WEB, CLI, TR069.
Integrated OAM, XML, DHCP option 66
& 67 for auto configuration and firmware upgrade.
Call loss is less than 0.01%.
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