
The following three sections cover the bare essential configuration steps necessary to support voice transmission and reception on a typical voice gateway router in your network: To access Cisco Feature Navigator, go to An account on is not required.
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Use Cisco Feature Navigator to find information about platform support and Cisco software image support. To find information about the features documented in this module, and to see a list of the releases in which each feature is supported, see the feature information table. For the latest caveats and feature information, see Bug Search Tool and the release notes for your platform and software release. Your software release may not support all the features documented in this module.

The example configurations in this section show voice over IP (VoIP) dial peers the same concepts also apply to voice over Frame Relay (VoFR) and voice over ATM (VoATM) dial peers. A voice call over the packet network comprises four call legs, two on the originating router and two on the terminating router a dial peer is associated with each of these four call legs. Call legs define the discrete segments that lie between two points in the call connection.

