On the Cisco-voip mailing list, there was reference to a couple of sites that provide log decoders for Callmanger and IOS:
- TripleCombo Tool:
Triple Combo is a tool to aid people troubleshoot CallManager problems by providing a listed
output of SCCP, MGCP, Q931 / H225, H245 messages found in CCM traces, CCAPI/VTSP, Q931 and
MGCP debugs in IOS gateway traces and versatile filtering capabilities.
- TranslatorX: TranslatorX allows you to quickly parse through Cisco
CallManager trace files and search for Q.931, H.225, SCCP (Skinny), MGCP, or SIP messages.
They aren't necessarily TAC supported, but they may help to weed through and make sense
of what would be otherwise painful troubleshooting.