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Cisco Bug: CSCvv54238 - SIP calls hung indefinitely when SIP Call Preservation Expires Timer is set to 0

Last Modified

Sep 30, 2020

Products (1)

  • Cisco Unified Communications Manager (CallManager)

Known Affected Releases

10.5(2.17900.13)

Description (partial)

Symptom:
Calls are hung indefinitely and will constantly send refresh messaging to gateways, endpoints, and recording servers

Conditions:
CUCM configured with the SIP Call Preservation Expires Timer set to 0 (default) and utilizing SIP call flows wherein one device loses connection to CUCM, triggering call preservation
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