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    Hi Steven,<br>
    <br>
    thanks for the reply :)<br>
    <br>
    So if I leave out the start_dtmf and start_dtmf_generate, the
    send_dtmf will use RFC2833?&nbsp; This would be great.<br>
    I have noticed that when running the example I sent in my original
    email, that if I play a file before the send_dtmf that the dtmf gets
    sent fine, but not playing a file will cause the dtmf to not be sent
    :/<br>
    I have put in a work around that plays a blank file, and that seems
    to work, but could this be a bug?<br>
    <br>
    thanks<br>
    Matt<br>
    <br>
    <div class="moz-cite-prefix">On 30/06/2014 15:55, Steven Ayre wrote:<br>
    </div>
    <blockquote
cite="mid:CAFiqYu=90pF-iV-m070=OPTBejgBn2e7pn0KSWNwVoRDqO+Hqg@mail.gmail.com"
      type="cite">
      <div dir="ltr">SIP trace won't show the DTMF. Digits would
        normally probably be sent via RFC2833 packets, which would show
        in a packet trace of the RTP stream.
        <div><br>
        </div>
        <div>In your case you're running start_dtmf and&nbsp;<span
            style="font-size:13px;font-family:arial,sans-serif">start_dtmf_</span><span
            style="font-size:13px;font-family:arial,sans-serif">generate
            - are you sure you want those? They are for receiving and
            sending DTMF as in-band DTMF tones instead of as SIP INFO /
            RTP RFC2833 packets. They're not a good idea unless you
            actually require them since they increase the CPU load for
            the call and can result in duplicated digits if you're
            sending DTMF both inband and out-of-band.</span></div>
        <div><span style="font-size:13px;font-family:arial,sans-serif"><br>
          </span></div>
        <div><font face="arial, sans-serif">For debugging purposes DTMF
            packets sent via start_dtmf_generate cannot be seen in
            packet traces, unless you actually decode and listen to the
            RTP stream they're sent in.</font></div>
        <div><font face="arial, sans-serif"><br>
          </font></div>
        <div><font face="arial, sans-serif">If the device you're sending
            to isn't hearing the digits it probably means
            start_dtmf_generate is sending them inband and the device is
            only listening for DTMF out-of-band.</font></div>
      </div>
      <div class="gmail_extra"><br>
        <br>
        <div class="gmail_quote">On 30 June 2014 14:24, Matt Broad <span
            dir="ltr">&lt;<a moz-do-not-send="true"
              href="mailto:matt@inveroak.com" target="_blank">matt@inveroak.com</a>&gt;</span>
          wrote:<br>
          <blockquote class="gmail_quote" style="margin:0 0 0
            .8ex;border-left:1px #ccc solid;padding-left:1ex">
            Hi,<br>
            <br>
            I have the need to send a dtmf tone, but send_dtmf does not
            seem to work.<br>
            I have the following in a dialplan, but doing a sip trace
            the dtmf<br>
            digits are not sent. &nbsp;I have tried removing the start_dtmf
            and<br>
            start_dtmf_generate, but still no joy.<br>
            <br>
            &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;&lt;action application="start_dtmf" /&gt;<br>
            &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;&lt;action application="start_dtmf_generate"/&gt;<br>
            &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;&lt;action application="answer"/&gt;<br>
            &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;&lt;action application="sleep" data="2000"/&gt;<br>
            &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;&lt;action application="send_dtmf"
            data="0123456789ABCD*#@100"/&gt;<br>
            &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;&lt;action application="sleep" data="2000"/&gt;<br>
            <br>
            I am using FreeSWITCH Version<br>
            1.4.6+git~20140603T193516Z~9479729340~64bit (git 9479729
            2014-06-03<br>
            19:35:16Z 64bit)<br>
            <br>
            thanks<br>
            Matt<br>
            <br>
            <br>
            <br>
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