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Cisco Bug: CSCvv49915 - FPI hung sessions after double transfer

Last Modified

Oct 07, 2020

Products (1)

  • Cisco IOS

Known Affected Releases

16.0.1.0

Description (partial)

Symptom:
When having multiple transfers in a call flow, the FPI sessions can become hung and ultimately this can lead to a crash of the Cisco Unified Border Element (CUBE).

Conditions:
Upon second transfer in a call flow a REFER sent to the provider can get a SIP 401 Response. This condition can lead to the hung sessions.
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