<div dir="ltr">Also whether you are / aren&#39;t using start_dtmf (if you&#39;re actually getting RFC2833 don&#39;t use it).</div><div class="gmail_extra"><br><br><div class="gmail_quote">On 22 July 2014 14:28, Michael Jerris <span dir="ltr">&lt;<a href="mailto:mike@jerris.com" target="_blank">mike@jerris.com</a>&gt;</span> wrote:<br>

<blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex"><div dir="auto"><div>can you confirm if this is still an issue in latest git master, and if so, please collect pcap and full debug log of the call and create a Jira.</div>

<div><div class="h5">
<div><br>On Jul 22, 2014, at 9:06 AM, Chris Young &lt;<a href="mailto:Chris.Young@enghouse.com" target="_blank">Chris.Young@enghouse.com</a>&gt; wrote:<br><br></div></div></div><blockquote type="cite"><div><div><div class="h5">










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<p class="MsoNormal">Hi all,</p>
<p class="MsoNormal"> </p>
<p class="MsoNormal">We are experiencing problems with DTMF collection using FreeSWITCH 1.4.6. The symptoms are missed or duplicated digits when decoding DTMF sent using RFC 2833 from Cisco phones; for example, given the sequence:</p>



<p class="MsoNormal"> </p>
<p class="MsoNormal">                1 2 3 4 5 6 7 8 9 0 #</p>
<p class="MsoNormal"> </p>
<p class="MsoNormal">we might typically end up with something like this after FreeSWITCH has processed the received RTP:</p>
<p class="MsoNormal"> </p>
<p class="MsoNormal">                1 2 3 5 7 7 8 9 9 #</p>
<p class="MsoNormal"> </p>
<p class="MsoNormal">Using Wireshark, we can see that all the expected RTP events are present on the wire but FreeSWITCH seems to have difficulty in processing them all consistently. I&#39;ve tried setting the following manual RTP bugs (bit of guesswork here I&#39;m
 afraid, these may or may not be relevant):</p>
<p class="MsoNormal"> </p>
<p class="MsoNormal">                IGNORE_DTMF_DURATION</p>
<p class="MsoNormal">                ACCEPT_ANY_PACKETS</p>
<p class="MsoNormal"> </p>
<p class="MsoNormal">but unfortunately neither made any difference. Are there any other settings we could try which might help? Or is this a known problem with some other workaround?</p>
<p class="MsoNormal"> </p>
<p class="MsoNormal">Regards,</p>
<p class="MsoNormal">Chris</p>
</div>
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<p> </p>
<font color="#00559a" size="4"><font color="#00559a" size="4"><font color="#00559a" size="4"><span lang="EN-GB"><font face="Calibri">
</font></span></font></font></font></div></div><p><font color="#00559a" size="4"><font color="#00559a" size="4"><font color="#00559a" size="4"><font face="Calibri"><span style="font-family:Calibri;font-size:medium">Chris</span> <span style="font-family:Calibri;font-size:medium">Young</span></font></font></font></font><font color="#00a0dc" size="3"><font color="#00a0dc" size="3"><font color="#00a0dc" size="3" face="Calibri"></font></font></font>
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</font></font></font><font color="#00a0dc" size="3"><font color="#00a0dc" size="3"><font color="#00a0dc" size="3" face="Calibri">&lt;image05853e.PNG&gt;<br>
</font></font></font></p><div class=""><font color="#00559a" size="3"><font color="#00559a" size="3"><font color="#00559a" size="3"><font face="Calibri">t:</font></font></font></font><font face="Calibri"><font size="3"><font size="3">  </font></font><font color="#00b0f0" size="3"><font color="#00b0f0" size="3"><font color="#00b0f0" size="3"><span style="font-family:Calibri;font-size:small;color:DodgerBlue">+44
 118 943 9249</span></font></font></font></font><span lang="EN-GB"><font color="#00559a" size="3"><font color="#00559a" size="3"><font color="#00559a" size="3"><font face="Calibri"><br>
</font></font></font></font></span><span lang="EN-GB"><font color="#00559a" size="3"><font color="#00559a" size="3"><font color="#00559a" size="3"><font face="Calibri">e:</font></font></font></font><font face="Calibri"><font size="3"><font size="3"> 
</font></font></font></span><span lang="EN-GB"><font face="Calibri"><font color="#00b0f0" size="3"><font color="#00b0f0" size="3"><font color="#00b0f0" size="3"><span style="font-family:Calibri;font-size:small;color:DodgerBlue;text-decoration:none"><span style="font-family:Calibri;font-size:small;color:DodgerBlue;text-decoration:none"><a href="mailto:Chris.Young@enghouse.com" title="Click to send email to Chris Young" target="_blank"><span style="font-family:Calibri;font-size:small;color:DodgerBlue;text-decoration:none">Chris.Young@enghouse.com</span></a></span></span></font></font></font></font></span><font color="#00559a" size="3"><font color="#00559a" size="3"><font color="#00559a" size="3"><font face="Calibri"><br>



</font></font></font></font><font color="#00559a" size="3"><font color="#00559a" size="3"><font color="#00559a" size="3"><font face="Calibri">w:</font></font></font></font><font size="3"><font size="3" face="Calibri">
</font></font><span style="font-family:Calibri;color:DodgerBlue;font-style:normal;text-decoration:none"><span style="font-family:Calibri;color:DodgerBlue;font-style:normal;text-decoration:none"><a href="http://www.enghouseinteractive.co.uk" title="Enghouse Interactive" target="_blank"><span style="font-family:Calibri;color:DodgerBlue;font-style:normal;text-decoration:none">www.enghouseinteractive.co.uk</span></a></span></span><font color="#00b0f0" size="3"><font color="#00b0f0" size="3"><font color="#00b0f0" size="3"><span lang="EN-GB"><font face="Calibri"><br>



</font></span></font></font></font></div><span lang="EN-GB"><font face="Calibri"><font color="#00b0f0" size="3"><font color="#00b0f0" size="3"><font color="#00b0f0" size="3">&lt;image3d627d.PNG&gt;<br>
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</div></blockquote><blockquote type="cite"><div><span>_________________________________________________________________________</span><br><span>Professional FreeSWITCH Consulting Services:</span><br><span><a href="mailto:consulting@freeswitch.org" target="_blank">consulting@freeswitch.org</a></span><br>


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<br>_________________________________________________________________________<br>
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<br>
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<br></blockquote></div><br></div>