I have a 2811 with a VIC2-FXO card registered to CCM via MGCP. The voice-ports and dial-peers appear to be setup correctly, also the gateway config in CCM looks good, however when you call any FXO port on the router it plays a dialtone instead of routing to the extension number that is specified in the CCM. In addsion, sometimes the FXO ports just answer the call and remain silent.
I tried rebuilding the gateway in CCM and restarting the FXO ports but that didn?t help. Any suggestions? My config is attached.
It could be that the configuration is not being downloaded from CCM. Do a "show ccm-manager" on the gateway. Does it show the gateway as registered? Under Configuration Auto-Download Information, is there a Current version-id and at least 1 successful download and configuration?
I notice in your config that you have "connection plar 1000" under voice port 0/1/0. I'm not sure this would be causing your problem, but it's definitely not necessary. The destination for incoming calls with an MGCP FXO gateway will be determined by the Attendant DN configured in CCM gateway configuration and/or a translation pattern in CCM.
Is there a associated dial-peer with this FXO port? Do they have "application mgcpapp" or "service mgcpapp" on them (depends on IOS version)?
Have you tried to re-enter the Attendant DN on the CCM endpoint configuration page and update/reset on CCM side? Sometimes I have seen the Attendant DN show blank and this happen for some reason and updating the CCM side and resetting clears up the issue.
Is the Attendant DN set valid - or does it go somewhere that provides dialtone back? Maybe also check the CSS on the CCM FXO config.
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