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Created by Ryan Harris, last modified by Attila Gulyas on 2019.12.23


boolean Set this on an inbound channel before answer or on an outbound channel before the bridge/originate in order to prevent DTMF events from being sent to the channel.

Only tested with RFC2833, may also work for INFO / inband. See FS-4769 -Authenticate to see issue details Commit 60f7849cbe72.

TODO RFC 2833 is obsoleted by RFC 4733.


<action application="set" data="drop_dtmf=true"/>
<action application="answer"/>
<action application="export" data="nolocal:drop_dtmf=true"/>
<action application="bridge" data="sofia/internal/100@"/>
<action application="bridge" data="{drop_dtmf=true}sofia/internal/100@"/>