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Cisco Bug: CSCsg31937 - DTMF detected while hearing the custom ringback(music)

Last Modified

Feb 22, 2014

Products (1)

  • Cisco Access Server Portware

Known Affected Releases

12.4(2)T2

Description (partial)

Symptom:
AS5400XM detects some DTMF tones while hearing a custom ringback tone(music) which does not exist in the real source.

Conditions:
It happens only when using "RFC2833" and "inband" mode for DTMF relay. When using "out of band" mode, there is no problem.
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