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Cisco Bug: CSCsz50949 - ACK not sent in proxy call flow

Last Modified

Feb 22, 2014

Products (1)

  • Cisco Collaboration Systems Release

Known Affected Releases

3.1(2)

Description (partial)

Symptom:
When using SRV, and the first destination is not configured to handle the call, a 503 rejection may be returned.  The invite is forwarded to the next destination proxy which returns the final accepted response.  The call is dropped due to ACK not getting sent.  Exception is seen in the stack tracing.

Conditions:
Static route is such that 503 is returned from first destination.  SRV is being used on the CVP.
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