<div dir="ltr">yeah... doggy carrier, you should somehow get other leg SDP and check that against telephone-event string.<div><br></div><div>i'd use execute_on_answer hook to try to get other leg SDP and than would evaluate that to either start_dtmf or not.</div><div>anyhow, this is theoretical, but if there is no other straight method, i'd try this.</div><div><br></div><div><br></div><div>T.<br><div><br></div><div><br></div></div></div><div class="gmail_extra"><br><div class="gmail_quote">On 13 May 2017 at 23:27, Brian : <span dir="ltr"><<a href="mailto:brians@iptel.co" target="_blank">brians@iptel.co</a>></span> wrote:<br><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex">Hello List,<br>
<br>
We have a PITA carrier that we do 2833 with 99.8% of the time.<br>
Sometimes if the carrier they are sending the call to doesn't support<br>
2833 when they will send an OK back to us the SDP won't have 2833 in<br>
the RTP Map. Is it possible to detect this in dialog and start dtmf<br>
generate so we will send tones inband for these calls?<br>
<br>
For inbound calls we detect it with something like<br>
<br>
<condition field="${switch_r_sdp}"<br>
expression="a=rtpmap:(\d+)\<wbr>stelephone-event/8000"><br>
on the initial invite.<br>
<br>
Just not sure how to do this for an OK in dialog or if its possible.<br>
<br>
<br>
Thanks!<br>
Brian<br>
<br>
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