Voice Over Internet Protocol (VoIP) Cisco telephones were experiencing an issue.
Some users located on North Campus and Enterprise Square (ESQ) were affected by this outage.
The affected users were not able to make inbound and outbound calls. Some users had continuous restarts of their VoIP telephones.
Start: 2015/04/13 09:30 Users reported their VoIP phones were not working properly.
2015/04/13 09:30 IT support analysts began working on the issue and engaged vendor for assistance.
2015/04/13 10:30 The root cause was identified and steps were taken towards resolution.
2015/04/13 12:15 Service was restored.
End: 2015/04/13 13:15 Users confirmed service was restored.
Call Manager system failure due to database synchronization issues. Compounding the issue a phone software upgrade resulted in some client phones restarting several times. That action triggered a precautionary measure whereby network access was disabled to VoIP phones connections.
Call Manager database was resynchronized and VoIP connections were reenabled.