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<p class="MsoNormal"><span style="mso-fareast-language:EN-US">Steven & Mike,<o:p></o:p></span></p>
<p class="MsoNormal"><span style="mso-fareast-language:EN-US"><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="mso-fareast-language:EN-US">Much appreciated. I will give this a try.<o:p></o:p></span></p>
<p class="MsoNormal"><span style="mso-fareast-language:EN-US"><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="mso-fareast-language:EN-US">Andrew<o:p></o:p></span></p>
<p class="MsoNormal"><span style="mso-fareast-language:EN-US"><o:p> </o:p></span></p>
<p class="MsoNormal"><b><span lang="EN-US">From:</span></b><span lang="EN-US"> FreeSWITCH-users <freeswitch-users-bounces@lists.freeswitch.org>
<b>On Behalf Of </b>Steven Ayre<br>
<b>Sent:</b> Saturday, 13 October 2018 11:50 PM<br>
<b>To:</b> FreeSWITCH Users Help <freeswitch-users@lists.freeswitch.org><br>
<b>Subject:</b> Re: [Freeswitch-users] Re- DTMF 2833 issue<o:p></o:p></span></p>
<p class="MsoNormal"><o:p> </o:p></p>
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<p class="MsoNormal">Try something like this:<o:p></o:p></p>
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<p class="MsoNormal"><o:p> </o:p></p>
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<pre><span style="color:black"> <extension name="inband-dtmf" continue="true"><o:p></o:p></span></pre>
<pre><span style="color:black"> <condition field="${switch_r_sdp}" expression="a=rtpmap:\d+<o:p></o:p></span></pre>
<pre><span style="color:black">telephone-event\/\d+"><o:p></o:p></span></pre>
<pre><span style="color:black"> <action application="start_dtmf"/><o:p></o:p></span></pre>
<pre><span style="color:black"> </condition><o:p></o:p></span></pre>
<pre><span style="color:black"> </extension><o:p></o:p></span></pre>
<pre><span style="color:black"><o:p> </o:p></span></pre>
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<p class="MsoNormal">I think the wiki used to have an example, but I don't see it on confluence.<o:p></o:p></p>
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<p class="MsoNormal"><o:p> </o:p></p>
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<p class="MsoNormal">On Sat, 13 Oct 2018 at 00:15, Michael Jerris <<a href="mailto:mike@jerris.com">mike@jerris.com</a>> wrote:<o:p></o:p></p>
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<p class="MsoNormal">There are vars with the full SDP, you can do a regex condition. Check the info app to see all the vars you have at your disposal. There may be a var for the te as well to show the pt.<o:p></o:p></p>
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<p class="MsoNormal"><o:p> </o:p></p>
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<p class="MsoNormal">Mike<o:p></o:p></p>
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<p class="MsoNormal"><br>
<br>
<o:p></o:p></p>
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<p class="MsoNormal">On Oct 10, 2018, at 6:53 PM, Andrew Keil <<a href="mailto:andrew.keil@visytel.com" target="_blank">andrew.keil@visytel.com</a>> wrote:<o:p></o:p></p>
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<p class="MsoNormal"><o:p> </o:p></p>
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<p class="MsoNormal">To FreeSWITCH Users,<o:p></o:p></p>
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<p class="MsoNormal"> <o:p></o:p></p>
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<p class="MsoNormal">I have just noticed when making calls internationally to the UK from Australia that the following SDP sometimes happens when the call lands on FreeSWITCH:<o:p></o:p></p>
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<p class="MsoNormal"> <o:p></o:p></p>
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<p class="MsoNormal">d5f14e47-2156-4236-be16-4eef1b7e9d3d 2018-10-04 06:59:28.819816 [DEBUG] sofia.c:7301 Remote SDP:<o:p></o:p></p>
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<p class="MsoNormal">d5f14e47-2156-4236-be16-4eef1b7e9d3d v=0<o:p></o:p></p>
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<p class="MsoNormal">d5f14e47-2156-4236-be16-4eef1b7e9d3d o=sbc-uk-mr-dh05a 451499 139728 IN IP4 XXX.XXX.XXX.XXX<o:p></o:p></p>
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<p class="MsoNormal">d5f14e47-2156-4236-be16-4eef1b7e9d3d s=sip call<o:p></o:p></p>
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<p class="MsoNormal">d5f14e47-2156-4236-be16-4eef1b7e9d3d c=IN IP4 XXX.XXX.XXX.XXX<o:p></o:p></p>
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<p class="MsoNormal">d5f14e47-2156-4236-be16-4eef1b7e9d3d t=0 0<o:p></o:p></p>
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<p class="MsoNormal">d5f14e47-2156-4236-be16-4eef1b7e9d3d m=audio 62754 RTP/AVP 8<o:p></o:p></p>
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<p class="MsoNormal">d5f14e47-2156-4236-be16-4eef1b7e9d3d a=rtpmap:8 PCMA/8000<o:p></o:p></p>
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<p class="MsoNormal">d5f14e47-2156-4236-be16-4eef1b7e9d3d a=ptime:20<o:p></o:p></p>
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<p class="MsoNormal"> <o:p></o:p></p>
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<p class="MsoNormal">This then creates the following message around call answer:<span class="m6862043662272355760apple-converted-space"> </span><o:p></o:p></p>
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<p class="MsoNormal"> <o:p></o:p></p>
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<p class="MsoNormal">d5f14e47-2156-4236-be16-4eef1b7e9d3d 2018-10-04 06:59:28.839799 [DEBUG] switch_core_media.c:5766<span class="m6862043662272355760apple-converted-space"> </span><b>No 2833 in SDP. Liberal DTMF mode adding 101 as telephone-event.</b><o:p></o:p></p>
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<p class="MsoNormal"> <o:p></o:p></p>
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<p class="MsoNormal">From this point on DTMF is NOT detected by the FreeSWITCH IVR service. I assume I would then need to use mod_dptools: start_dtmf to detect the DTMF tones within the channel. Which I am yet to test.<o:p></o:p></p>
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<p class="MsoNormal"> <o:p></o:p></p>
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<p class="MsoNormal">However my main question is whether there is a channel variable that would enable me to check whether 2833 support is not inside the SDP?<o:p></o:p></p>
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<p class="MsoNormal"> <o:p></o:p></p>
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<p class="MsoNormal">Regards,<o:p></o:p></p>
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<p class="MsoNormal"> <o:p></o:p></p>
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<p class="MsoNormal">Andrew Keil<span class="m6862043662272355760apple-converted-space"> </span><o:p></o:p></p>
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<p class="MsoNormal"> <o:p></o:p></p>
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<p class="MsoNormal"><o:p> </o:p></p>
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<p class="MsoNormal">_________________________________________________________________________<br>
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