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3Com VCX V7122/SIP VoIP Gateway User Manual
Figure 43
Tel to IP Routing Table
In this example, all incoming PSTN calls, with destination numbers starting with 10 and
210xxxx are routed to IP address 10.8.201.108 while calls with destination numbers starting
with 21xxxx, (excluding calls which start with the prefix 210) are sent over IP to address
10.8.201.141. All the rest of the calls are routed to IP address 10.8.12.12.
IP to Trunk Routing Table
IP to Trunk Group Routing table is used to route incoming IP
Æ
Tel calls to groups of
Gateway's E1/T1 B-channels (defined in the Trunk Group table), according to destination
number prefix.
To set the IP to Trunk Routing table, follow these steps:
1
On the sub-menu bar on the top, click
IP to Trunk Routing
. The IP to Trunk Routing
screen opens.
2
Define the appropriate routing rules (see the following figure).
3
Click
Submit
. The Gateway updates automatically.
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