Nortel VoIP Gateway, Configuration Manual

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Configuring the Telephone to IP Routing 65
Norstar VoIP Gateway Configuration Guide
Configuring the Telephone to IP Routing
The IP Routing Table associates a called telephone number prefix with a destination IP address.
When a call is routed through the VoIP Gateway, the number dialed is compared to the list of
prefixes on the IP Routing Table. Calls that match one of the prefixes are sent to the corresponding
IP address. If the number dialed does not match one of the prefixes, the call is not made.
The Telephone to IP Routing table is also used for the IP Security feature. When the IP Security
feature is enabled, the VoIP Gateway accepts calls only if they match one of the prefixes entered in
the Telephone to IP Routing Table.
If you are using a Gatekeeper, the Gatekeeper matches the number dialed to the correct IP address.
When using a Gatekeeper, you do not need to configure the Telephone to IP Routing Table.
However, if you want to use fallback routing when communication with the Gatekeeper is lost,
you will need to configure the IP Routing Table.
To configure the IP Routing Table:
1 Access the web interface.
2 Click the Protocol Management button.
3
Click the Tel to IP Routing tab.
The Tel to IP Routing & IP Security screen appears.
Figure 13 Phone to IP Routing Table
4 In the Routing Index drop box, select the range of entries that you want to edit.