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Cisco Bug: CSCtb13868 - SIP call is released in case SIP Update and SIP 200 OK cross eachother

Last Modified

Jul 07, 2017

Products (3)

  • Cisco Unified Communications Manager (CallManager)
  • Cisco Unity Connection Version 7.1
  • Cisco Unified Communications Manager Version 7.1

Known Affected Releases


Description (partial)


A SIP call may get released in case of glare.


CUCM 7.1(2)
After the glare has occured a SIP 500 Internal server error is received and CUCM releases the call.
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