I'm trying to prove that a disruption in service a few days ago was due to all our PRI channels being in use. Symptom to users was fast-busy when trying to place calls.
We did have full tracing turned on while the disruption occurred. I've collected the trace logs for the period in question for the Call Manager service. But I'm wondering what I should be looking for within the log files to be confident that the issue was due to all the PRI channels being in use. I would think that there should be some tell-tale entry in the log file indicating this - but I don't know what it would look like.