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Community Member

Jitter - CDR and 7960 Values

I''m running CM 3.1(4b) ,and am collecting CDR's for all calls. We're suffering poor voice quality on some calls, and the 7960 reports a high value for jitter during a poor call, for example 750ms. After the call is completed the CDR/CMR record for the call in question will show a jitter value of 1ms. This is a real pain because I can't tell how many other users are suffering the same problem, or how many calls over all are affected. Anybody got any ideas why the 7960 and CDR values for jitter should be different ?

Regards

Kelvin Owen

1 REPLY
Community Member

Re: Jitter - CDR and 7960 Values

I would suggest you to enable the CCM traces with the debug level set to detailed. At the end of every call, the IP phones send in a skinny message with call statistics. Verify if they are correct. You can also press the i button on the phone whenever you face such problem to confirm the values.

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