Welltech SIPPBX 6200 V.3.1.1 - Manual (Page 56)

Welltech Technology Co., Ltd.
SIPPBX 6200S, 6200GS, 6200N Release 3.1.1
User Guide
- 56 -
Parameter Description:
User ID: Subscriber ID for RTP server (Device type=RTP server)
Priority: The RTP Server priority. Digit 9 has the highest priority to route calls via
this RTP Resources server (WellRTP 5100).
After define the installed RTP resource server (WellRTP 5100), you can set
the preferred RTP proxy server, in subscriber menu, to be used. If the preferred
RTP server is out of order, SIPPBX 6200x will use internal or other RTP resource
severs.
NAT Group
NAT group can be used for enterprise user when they have multiple branch
offices at different location. When two subscribers was configured to the same
NAT Group, the call between these two subscribers were routed directly without
passing through SIPPBX 6200x server or its RTP Resources server. You have to
define NAT group definition at Detail command. And enter the internet public IP
address which was used by one of subscriber. When one subscriber stay at
private IP address which belong to one internet IP and was already entered at
NAT group, the call can reach to another subscriber directly which belong to
another public internet IP address. It is useful when your branch offices have
multiple IP address on their NAT server. By setting it, those calls in branch office
will route voice in their LAN directly.
Start Path: Service > NAT Group
Figure 5.6-1
Detail:
Figure 5.6-2