<div dir="ltr"><div>If you are using RFC-2833, you do not need to "start_dtmf". I believe that is only used when you are receiving DTMF inband. If your provider sends RFC-2833, just disable inband DTMF.</div><div>
</div><div>Guillermo</div></div><div class="gmail_extra"><br><br><div class="gmail_quote">On Thu, Mar 6, 2014 at 9:06 AM, Andy Ayers <span dir="ltr"><<a href="mailto:andy@fabulous4.co.uk" target="_blank">andy@fabulous4.co.uk</a>></span> wrote:<br>
<blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex"><div lang="EN-GB" vlink="purple" link="blue"><div><p class="MsoNormal">Hi,<u></u><u></u></p><p class="MsoNormal"><u></u> <u></u></p>
<p class="MsoNormal">I have an freeswitch system running which accepts incoming calls and requests a pincode for people to identify themselves to the system. I am getting an increasing number of issues where the dtmf tones being received appear to get doubled up. So I enter 1234 on my telephone keypad and 11223344 appears to be received in the buffer when calling getDigits. This doesn’t happen all the time but often enough to be a problem. All the calls in to my system are forwarded on to me directly via SIP from a major UK telecoms provider that terminates numbers for us.<u></u><u></u></p>
<p class="MsoNormal"><u></u> <u></u></p><p class="MsoNormal">Can anyone suggest what dtmf settings I may have got wrong that would cause this phenomenon or any suggestions how I can go about fixing it?<u></u><u></u></p><p class="MsoNormal">
<u></u> <u></u></p><p class="MsoNormal">I’m using …<u></u><u></u></p><p class="MsoNormal"><u></u> <u></u></p><p class="MsoNormal"><span style="background:white;color:blue;font-family:"Courier New";font-size:9pt"><</span><span style="background:white;color:rgb(163,21,21);font-family:"Courier New";font-size:9pt">action</span><span style="background:white;color:blue;font-family:"Courier New";font-size:9pt"> </span><span style="background:white;color:red;font-family:"Courier New";font-size:9pt">application</span><span style="background:white;color:blue;font-family:"Courier New";font-size:9pt">=</span><span style="background:white;font-family:"Courier New";font-size:9pt">"</span><span style="background:white;color:blue;font-family:"Courier New";font-size:9pt">start_dtmf</span><span style="background:white;font-family:"Courier New";font-size:9pt">"</span><span style="background:white;color:blue;font-family:"Courier New";font-size:9pt"> /></span><span style="color:blue;font-family:"Courier New";font-size:9pt"><u></u><u></u></span></p>
<p class="MsoNormal"><span style="color:blue;font-family:"Courier New";font-size:9pt"><u></u> <u></u></span></p><p class="MsoNormal">In my dialplan. And these settings in my SIP profile:<u></u><u></u></p><p class="MsoNormal">
<u></u> <u></u></p><p class="MsoNormal" style><span style="background:white;color:blue;font-family:"Courier New";font-size:9pt"><</span><span style="background:white;color:rgb(163,21,21);font-family:"Courier New";font-size:9pt">param</span><span style="background:white;color:blue;font-family:"Courier New";font-size:9pt"> </span><span style="background:white;color:red;font-family:"Courier New";font-size:9pt">name</span><span style="background:white;color:blue;font-family:"Courier New";font-size:9pt">=</span><span style="background:white;font-family:"Courier New";font-size:9pt">"</span><span style="background:white;color:blue;font-family:"Courier New";font-size:9pt">dtmf-duration</span><span style="background:white;font-family:"Courier New";font-size:9pt">"</span><span style="background:white;color:blue;font-family:"Courier New";font-size:9pt"> </span><span style="background:white;color:red;font-family:"Courier New";font-size:9pt">value</span><span style="background:white;color:blue;font-family:"Courier New";font-size:9pt">=</span><span style="background:white;font-family:"Courier New";font-size:9pt">"</span><span style="background:white;color:blue;font-family:"Courier New";font-size:9pt">100</span><span style="background:white;font-family:"Courier New";font-size:9pt">"</span><span style="background:white;color:blue;font-family:"Courier New";font-size:9pt">/></span><span style="background:white;font-family:"Courier New";font-size:9pt"><u></u><u></u></span></p>
<p class="MsoNormal"><span style="background:white;color:blue;font-family:"Courier New";font-size:9pt"><</span><span style="background:white;color:rgb(163,21,21);font-family:"Courier New";font-size:9pt">param</span><span style="background:white;color:blue;font-family:"Courier New";font-size:9pt"> </span><span style="background:white;color:red;font-family:"Courier New";font-size:9pt">name</span><span style="background:white;color:blue;font-family:"Courier New";font-size:9pt">=</span><span style="background:white;font-family:"Courier New";font-size:9pt">"</span><span style="background:white;color:blue;font-family:"Courier New";font-size:9pt">dtmf-type</span><span style="background:white;font-family:"Courier New";font-size:9pt">"</span><span style="background:white;color:blue;font-family:"Courier New";font-size:9pt"> </span><span style="background:white;color:red;font-family:"Courier New";font-size:9pt">value</span><span style="background:white;color:blue;font-family:"Courier New";font-size:9pt">=</span><span style="background:white;font-family:"Courier New";font-size:9pt">"</span><span style="background:white;color:blue;font-family:"Courier New";font-size:9pt">rfc2833</span><span style="background:white;font-family:"Courier New";font-size:9pt">"</span><span style="background:white;color:blue;font-family:"Courier New";font-size:9pt">/></span><b><u></u><u></u></b></p>
<p class="MsoNormal"><span style="color:blue;font-family:"Courier New";font-size:9pt"><u></u> <u></u></span></p><p class="MsoNormal">Any help much appreciated.<u></u><u></u></p><p class="MsoNormal"><u></u> <u></u></p>
<p class="MsoNormal">Many thanks<span class="HOEnZb"><font color="#888888"><u></u><u></u></font></span></p><span class="HOEnZb"><font color="#888888"><p class="MsoNormal">Andy<span style="color:blue;font-family:"Courier New";font-size:9pt"><u></u><u></u></span></p>
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