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Cisco Bug: CSCvv17937 - Dynamic insertion/deletion of DTMF interworking fails for midcal negotiation w/REINVITE consumption

Last Modified

Sep 01, 2020

Products (1)

  • Cisco IOS

Known Affected Releases

16.9.5

Description (partial)

Symptom:
Steps to reproduce:
1-Call completes with DTMF RFC2833 to both legs 
  DTMF works 
  example:ITSP---RFC2833events--->CUBE--->RFC2833events--->IVR 
2-midcall negotiation (Hold/resume/transfer)
3-Call connects back to IVR 
  DTMF stops working 
  CUBE receives, but stops sending 
 example:ITSP---RFC2833events--->CUBE--->no events--->IVR

Conditions:
RFC2833 in both legs
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Bug Details Include

  • Full Description (including symptoms, conditions and workarounds)
  • Status
  • Severity
  • Known Fixed Releases
  • Related Community Discussions
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