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Cisco Bug: CSCun66358 - Sip Refer Transfer Delay

Last Modified

Feb 26, 2019

Products (8)

  • Cisco Unified Communications Manager (CallManager)
  • Cisco Intercompany Media Engine
  • Cisco Business Edition 5000 Version 8.6
  • Cisco Business Edition 3000 Version 8.6
  • Cisco Business Edition 6000 Version 8.6
  • Cisco Unified Communications Manager Version 8.6
  • Cisco Unity Connection Version 8.6
  • Cisco Unified Communications Manager Session Management Edition

Known Affected Releases

8.6(2) 9.1(2.11900.12)

Description (partial)

The sip stack is processing the incoming transfer request at the same time that the peer leg is updating call information.  This results in a race-condition that freezes the transfer until the tranferring party hangs up.

-UC Manager with inbound and outbound SIP trunks.
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Bug Details Include

  • Full Description (including symptoms, conditions and workarounds)
  • Status
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