Cisco Systems 3600 manual Optimize Dial Peer and Network Interface Configurations, Validation Tips

Optimize Dial Peer and Network Interface Configurations

Validation Tips

You can check the validity of your dial-peer configuration by performing the following tasks:

•If you have relatively few dial peers configured, you can use the show dial-peer voice command to verify that the data configured is correct. Use this command to display a specific dial peer or to display all configured dial peers.

•Use the show dialplan number command to show the dial peer to which a particular number (destination pattern) resolves.

Troubleshooting Tips

If you are having trouble connecting a call and you suspect the problem is associated with dial-peer configuration, you can try to resolve the problem by performing the following tasks:

•Ping the associated IP address to confirm connectivity. If you cannot successfully ping your destination, refer to the Network Protocols Configuration Guide, Part 1.

•Use the show dial-peer voice command to verify that the operational status of the dial peer is up.

•Use the show dialplan number command on the local and remote routers to verify that the data is configured correctly on both.

•If you have configured number expansion, use the show num-expcommand to check that the partial number on the local router maps to the correct full E.164 telephone number on the remote router.

•If you have configured a CODEC value, there can be a problem if both VoIP dial peers on either side of the connection have incompatible CODEC values. Make sure that both VoIP peers have been configured with the same CODEC value.

Optimize Dial Peer and Network Interface Configurations

Depending on how you have configured your network interfaces, you might need to configure additional VoIP dial-peer parameters. This section describes the following topics:

Configure IP Precedence for Dial Peers

If you want to give real-time voice traffic a higher priority than other network traffic, you can weight the voice data traffic associated with a particular VoIP dial peer by using IP Precedence. IP Precedence scales better than RSVP but provides no admission control.

VC-32Voice, Video, and Home Applications Configuration Guide