Misc. Dialplan Tools flush dtmf

From FreeSWITCH Wiki

Flushes DTMFs received on a channel. Useful in cases where callers may have entered extra digits in one dialog and you want to flush them out before sending them into another dialog. (See play_and_get_digits)

Usage:

<action application="flush_dtmf"/>

If you have issues with mysterious DTMFs being entered in your dialogs then try adding flush_dtmf before the dialog and see if that helps.