PLANET VIP-1680 - Manual (Page 41)

For example: Port 1 and port 2 is hunting for the port 1 SIP account. If the port 1 is incoming call, the
other one SIP call from internet will ring port 2.
SIP Proxy Server Setting
Domain/Realm Enter the SIP realm in this field
SIP Proxy Server
Enter the SIP service IP address or domain name in this field
(the domain name that comes after the @ symbol i n a full
SIP URI).
Use Net2Phone Service Provider
Register Interval
(seconds)
This field sets how long an entry remains registered with the
SIP register server. The register server can use a different
time period. The gateway sends another registration request
after half of this configured time period has expired.
SIP Authentication Enable or disable MD5 authentication with SIP proxy server.
Outbound Proxy Server
The outbound proxy method is just very like the proxy server
built-in NAT pass-through solution, except that the packets
need to pass through the outbound proxy server.
SIP NAT Traversal Method STUN client / Symmetric RTP
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