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Cisco Bug: CSCtd69426 - IME Mid-Call Fallback fails for 2833 and DTMF sequences greater than 4

Last Modified

Jul 07, 2017

Products (1)

  • Cisco Unified Communications Manager (CallManager)

Known Affected Releases


Description (partial)


IME Mid-call fallback fails.


PSTN trunk is a SIP trunk. Trunk handles DTMF digits inband via RFC 2833.
More than 4 DTMF digits must be used as the DTMF correlation digit sequence.
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