CCM 4.1(3) and CAS T1 Troubleshooting

[jmujica]

Hi.

I need to know what to look on the CCM Trace file for Digital T1 CAS configured for E&M Wink-Start using an MGCP gateway. I look at the trace file but I can't see anything related to this CAS T1.

Thanks in advanced,

-Jose

[agopala]

Hello! What exactly are you trying to troubeshoot?

From a call flow perspective, you should see CRCX, NTFY, MDCX, DLCX and corresponding 200 OKs..You should be able to see this in the CCM traces. Please look for these exact words. Once you find the first CRCX, you can find the call ID from that message and then find the rest of the messages.

You will also get a plethora of info from debug vtsp all and debug vpm all and ccapi also.

[Jason Aarons]

Sounds like you need a telco T-Berd or other test device, or have the telco run a decode on their switch. This is why CAS is no longer in favor. With ISDN you can debug isdn q931, debug isdn q921, show isdn status, etc.