Cisco Bug: CSCta98995 - Interoperability limitation between QSIG trunk and SIP trunk in CUCM
Feb 22, 2014
- Cisco Unified Communications Manager (CallManager)
Known Affected Releases
Symptom: MWI indications from QSIG PRI stops working after a period of time and requires a port reset to operate normally. Conditions: MWI sent from a voicemail system integrated to CUCM through QSIG PRI. If the DN for one of the MWI request matches a route pattern that routes via SIP trunk, MWI stops working for all subsequent requests for ANY dn in the cluster. This is a limitation by design in how CUCM handles interop between QSIG and SIP trunks. For MWI to work properly, Administrator needs to set the route patterns to use SIP trunk directly instead of using Route List/Route group combination for the particular SIP trunk.
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Bug Details Include
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