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Cisco Bug: CSCvs67791 - 491 returned on midcall INVITE when peer leg is not pending a request

Last Modified

Nov 10, 2020

Products (5)

  • Cisco 2600 Series Multiservice Platforms
  • Cisco 1000 Series Integrated Services Routers
  • Cisco 4000 Series Integrated Services Routers
  • Cisco ASR 1000 Series Aggregation Services Routers
  • Cisco Cloud Services Router 1000V Series

Known Affected Releases

15.7(3)M 15.7(3)M3

Description (partial)

Symptom:
A 491 Request Pending error is returned on midcall re-INVITE when the peer leg is not pending a request.

The original ACK does not reset teh Midcall Peer Invite Idicator flag properly.

Conditions:
SIP to SIP call flow with midcall re-INVITE
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