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Cisco Bug: CSCun00566 - SPA302D DTMF tone too short & not configurable, InBand DTMF doesn't work

Last Modified

Jun 12, 2014

Products (1)

  • Cisco Small Business Voice Gateways and ATAs

Known Affected Releases


Description (partial)

The DTMF tone sent by the SPA302D is too short for some IVR systems and causes DTMF detection failure on the IVR. The length of the transmitted DTMF tone has a fixed value regardless of how long the corresponding key was pressed on the keypad of the SPA302D.

InBand DTMF doesn't work.

Other probably related DTMF issues were discovered as early as 2012 and these issues seem to still persist even on 1.3.4(001) beta.

Feature Request: Add new parameter to configure DTMF TX length.

Normal use
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