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Cisco Bug: CSCtd69447 - Initial Mid-call PSTN fallback fails if 2833 used for DTMF

Last Modified

Nov 03, 2012

Products (1)

  • Cisco Unified Communications Manager (CallManager)

Known Affected Releases


Description (partial)


IME mid-call PSTN fallback fails. Sometimes the call drops sometimes the IME call stays up. In both cases the IME call fails to fallback to the PSTN.


PSTN SIP trunk with rfc 2833 inband DTMF handling. The IME call attempts to fallback to the PSTN.
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