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Cisco Bug: CSCun68355 - CUCM/SME drops QSIG APDU when retrying INVITE

Last Modified

Nov 14, 2015

Products (1)

  • Cisco Unified Communications Manager (CallManager)

Known Affected Releases


Description (partial)

CUCM drops the QSIG APDU when an INVITE is retried due to timers mismatch.

Call Flow:
Cluster 1 -- SME -- SIP w/QSIG -- Cluster 2

Cluster 2 has "SIP Min-SE Value" set to non-default value
SME cluster has Min-SE set to default (1800)

When making a call towards Cluster 2, the call fails, traces show that the QSIG is stripped from the retried INVITE message.

Timers mismatch causes the INVITE to be retried
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