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Cisco Bug: CSCuj42560 - SBC sends an H.245 TCP FIN before a release complete

Last Modified

Feb 22, 2014

Products (17)

  • Cisco IOS
  • Cisco 7301 Router
  • Cisco ME 3600X-24TS-M Switch
  • Cisco 7206 Router
  • Cisco 7206VXR Router
  • Cisco 7204 Router
  • Cisco 7202 Router
  • Cisco 7600 Series Route Switch Processor 720 with Multilayer Switch Feature Card
  • Cisco ME 3600X-24FS-M Switch
  • Cisco ME 3600X-24CX-M Switch
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Known Affected Releases


Description (partial)

In some cases it is possible for the SBC to close a call using an H.245 TCP socket FIN message before sending out any H.225 releaseComplete message. This can confuse some endpoints following H.323 call release procedure b.

The SBC must receive a releaseComplete from side A without and endSession first. This can be forwarded on to side B as a H.245 FIN first.
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