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Cisco Bug: CSCtd36623 - SIP call or session disconnects when CM sends ACK without 200 OK

Last Modified

Feb 04, 2017

Products (3)

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

Known Affected Releases

6.1(5) 7.1(3) 8.0(0.99111.4)

Description (partial)


Two ACK are sent out to ack the response for the same INVITE.


This can occur if duplicate responses are sent back in response to a retransmitted INVITE.
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