Check whether reconnecting the call solves the problem.
ADDITIONAL INFORMATION:
If the call is connected successfully, there may have been an intermittent network problem. No further actions need to be taken unless this happens frequently. If calls are dropped frequently, proceed to step 4.
To transfer the software to the telephone, type Hold R E S E T # on the telephone.
ADDITIONAL INFORMATION:
This reboots the IP telephone and downloads a new version from the tftp server. If this resolves the problem, then no further steps need to be taken; otherwise go to Step 4.
Check whether a network assessment has been done and whether the network has been modified after the assessment.
If the network assessment has been done and the network has been modified after the assessment, there may be a network problem. Go to step 1 and explore all possibilities.
If a network assessment has not been done, the network may not be compliant with Avaya’s network requirements and a (re-) assessment may need to be done. Go to the next step.
Check whether other IP telephones experience the same problem.
ADDITIONAL INFORMATION:
If other IP telephones experience the same problem, there may be a network problem.
Perform traditional troubleshooting to determine whether Communication Manager or the IP telephone drops the call.
ADDITIONAL INFORMATION:
For example, this can be done by:
Executing the list trace stationext# command.
Checking the denial event log (display events command, Category field = denial).
If this does not solve the problem, then there is a network problem.
ADDITIONAL INFORMATION:
Compliance with the Avaya network requirements may be an issue as well, and an assessment or a reassessment may need to be done.
