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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

8.0(0.99121.8)

Description (partial)

Symptom:

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.

Conditions:

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