Cisco IOS Voice Troubleshooting and Monitoring -- VoFR Testing Commands
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Latest revision as of 17:22, 16 October 2012
VoFR Connection Verification
To verify switched call voice connections, perform the following tasks:
- Pick up the telephone handset and verify that there is a dial tone.
- Call from a local telephone to the configured dial peer and verify that the call completes.
To verify the FXO-FXS trunk calls to a remote PBX, perform the following tasks:
- Pick up the telephone and listen for a dial tone from the remote PBX.
- Dial a telephone number, so that the remote PBX routes the call.
To verify voice connections, perform the following tasks:
- Check the validity of the dial peer and voice port configuration by performing the following tasks:
- Enter the show dial-peer voice command to verify that the data configured is correct.
- Enter the show dial-peer voice summary command to check the validity of the dial peer configurations.
- Enter the show voice port command to show the status of the voice ports.
- Enter the show call active voice with the keyword brief to show the call status for all voice ports.
- Enter the show voice call command to check the validity of the voice port configuration.
- Enter the show voice dsp command to show the current status of all DSP voice channels.
- Enter the show voice permanent command to show the status of Cisco trunk permanent calls.
- Enter the show call history command to show the active call table.
- Check the validity of the VoFR configuration on the DLCI by entering the show frame-relay vofr command to show the VoFR configuration.
VoFR Problem Diagnosis
To diagnose problems in switched Frame Relay networks, use one or both of the following privileged EXEC commands:
Command | Purpose |
---|---|
Router# show frame-relay pvc |
Displays statistics about PVCs for Frame Relay interfaces. |
Router# debug frame-relay switching |
Displays debug messages for switched Frame Relay PVCs. |
VoFR Monitoring and Maintenance Commands
To monitor and maintain the VoFR configuration, use the following commands in EXEC mode as needed:
Command | Purpose |
---|---|
Router# show call active voice [brief] |
Displays the active call table. |
Router# show call history voice [last number] | [brief] |
Displays the call history table. |
or | |
Router# show call history voice record | |
Router# show dial-peer voice |
Displays configuration information and call statistics for dial peers. |
Router# show frame-relay fragment |
Displays information about the Frame Relay fragmentation taking place in the Cisco router. |
Router# show frame-relay pvc |
Displays statistics about PVCs for Frame Relay interfaces. |
Router# show frame-relay vofr |
Displays the FRF.11 subchannel information on VoFR DLCIs. |
Router# show interfaces serial |
Displays information about a serial interface. |
Router# show traffic-shape queue |
Displays information about the elements queued at a particular time at the VC (DLCI) level. |
Router# show voice permanent-call |
Displays information about the permanent calls on a voice interface. |