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<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D">Hi, thanks for your feedback.<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D"><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D">We are not using start_dtmf. I will try to test with 'master' and raise a ticket on JIRA if necessary.<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D"><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D">Thanks.<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D"><o:p> </o:p></span></p>
<p class="MsoNormal"><b><span lang="EN-US" style="font-size:10.0pt;font-family:"Tahoma","sans-serif"">From:</span></b><span lang="EN-US" style="font-size:10.0pt;font-family:"Tahoma","sans-serif""> freeswitch-users-bounces@lists.freeswitch.org [mailto:freeswitch-users-bounces@lists.freeswitch.org]
<b>On Behalf Of </b>Steven Ayre<br>
<b>Sent:</b> 22 July 2014 15:52<br>
<b>To:</b> FreeSWITCH Users Help<br>
<b>Subject:</b> Re: [Freeswitch-users] Dropped and duplicated DTMF digits<o:p></o:p></span></p>
<p class="MsoNormal"><o:p> </o:p></p>
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<p class="MsoNormal">Also whether you are / aren't using start_dtmf (if you're actually getting RFC2833 don't use it).<o:p></o:p></p>
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<p class="MsoNormal" style="margin-bottom:12.0pt"><o:p> </o:p></p>
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<p class="MsoNormal">On 22 July 2014 14:28, Michael Jerris <<a href="mailto:mike@jerris.com" target="_blank">mike@jerris.com</a>> wrote:<o:p></o:p></p>
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<p class="MsoNormal">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.<o:p></o:p></p>
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On Jul 22, 2014, at 9:06 AM, Chris Young <<a href="mailto:Chris.Young@enghouse.com" target="_blank">Chris.Young@enghouse.com</a>> wrote:<o:p></o:p></p>
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<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto">Hi all,<o:p></o:p></p>
<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"> <o:p></o:p></p>
<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto">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:<o:p></o:p></p>
<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"> <o:p></o:p></p>
<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"> 1 2 3 4 5 6 7 8 9 0 #<o:p></o:p></p>
<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"> <o:p></o:p></p>
<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto">we might typically end up with something like this after FreeSWITCH has processed the received RTP:<o:p></o:p></p>
<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"> <o:p></o:p></p>
<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"> 1 2 3 5 7 7 8 9 9 #<o:p></o:p></p>
<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"> <o:p></o:p></p>
<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto">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've tried setting
the following manual RTP bugs (bit of guesswork here I'm afraid, these may or may not be relevant):<o:p></o:p></p>
<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"> <o:p></o:p></p>
<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"> IGNORE_DTMF_DURATION<o:p></o:p></p>
<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"> ACCEPT_ANY_PACKETS<o:p></o:p></p>
<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"> <o:p></o:p></p>
<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto">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?<o:p></o:p></p>
<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"> <o:p></o:p></p>
<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto">Regards,<o:p></o:p></p>
<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto">Chris<o:p></o:p></p>
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<p> <o:p></o:p></p>
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<p><span style="font-size:13.5pt;font-family:"Calibri","sans-serif";color:#00559A">Chris Young</span>
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<span style="font-family:"Calibri","sans-serif";color:dodgerblue">Software Engineer</span><span style="font-family:"Calibri","sans-serif";color:#00A0DC"><br>
<image05853e.PNG></span><o:p></o:p></p>
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<p class="MsoNormal"><span style="font-family:"Calibri","sans-serif";color:#00559A">t:</span><span style="font-family:"Calibri","sans-serif""> <span style="color:dodgerblue">+44 118 943 9249</span><span style="color:#00559A"><br>
e:</span> <span style="color:dodgerblue"><a href="mailto:Chris.Young@enghouse.com" target="_blank" title="Click to send email to Chris Young"><span style="color:dodgerblue;text-decoration:none">Chris.Young@enghouse.com</span></a></span><span style="color:#00559A"><br>
w:</span> <span style="color:dodgerblue"><a href="http://www.enghouseinteractive.co.uk" target="_blank" title="Enghouse Interactive"><span style="color:dodgerblue;text-decoration:none">www.enghouseinteractive.co.uk</span></a></span></span><o:p></o:p></p>
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<p class="MsoNormal" style="margin-bottom:12.0pt"><span style="font-family:"Calibri","sans-serif";color:#00B0F0"><image3d627d.PNG></span><o:p></o:p></p>
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<p class="MsoNormal">_________________________________________________________________________<br>
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<p class="MsoNormal" style="margin-bottom:12.0pt"><br>
_________________________________________________________________________<br>
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<p class="MsoNormal"><o:p> </o:p></p>
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