This is from the default.xml file:

      <!--
 This is an example of how to auto detect if telephone-event is missing and activate inband detection
      -->
      <condition field="${switch_r_sdp}" expression="a=rtpmap:(\d+)\stelephone-event/8000" break="never">
<action application="set" data="rtp_payload_number=$1"/>
<anti-action application="start_dtmf"/>
      </condition>


-Avi


On Fri, Jul 26, 2013 at 2:05 PM, Alex Lake <alex@digitalmail.com> wrote:
And just for clarification, what do I have to do to get inband DTMF working?
I know that I have to do the "start-dtmf" thing, but do I have to change
anything in the SIP profile to encourage originating networks not to try
anything clever?

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