you are one email behind i think.<br>Problem is that FS only sends 2833 while it&#39;s busy doing something so you have to keep FS reading audio to trigger the outbound dtmf.<br><br><br><div class="gmail_quote">On Wed, Nov 5, 2008 at 3:37 PM, Klaus Teller <span dir="ltr">&lt;<a href="mailto:klaus.teller@gmx.net">klaus.teller@gmx.net</a>&gt;</span> wrote:<br>
<blockquote class="gmail_quote" style="border-left: 1px solid rgb(204, 204, 204); margin: 0pt 0pt 0pt 0.8ex; padding-left: 1ex;">I&#39;m updating now and will try the flush dtmf. I yet have a hard time understanding how this is related to sending DTMF (instead of reading DTMF). This because:<br>

<br>
1) The same problem appears when i replace sending DTMF with playing an audio file<br>
2) Introducing a delay between READING Dtmf and playing the file prevents the issue to appear.<br>
<br>
Ideas?<br>
<br>
Klaus.<br>
<br>
<br>
<br>
-------- Original-Nachricht --------<br>
&gt; Datum: Wed, 5 Nov 2008 15:24:33 -0600<br>
<div class="Ih2E3d">&gt; Von: &quot;Anthony Minessale&quot; &lt;<a href="mailto:anthony.minessale@gmail.com">anthony.minessale@gmail.com</a>&gt;<br>
</div><div><div></div><div class="Wj3C7c">&gt; An: <a href="mailto:freeswitch-users@lists.freeswitch.org">freeswitch-users@lists.freeswitch.org</a><br>
&gt; Betreff: Re: [Freeswitch-users] Inband DTMF Problem<br>
<br>
&gt; When you call send dtmf and it&#39;s rfc2833 you must sleep to give it a<br>
&gt; chance<br>
&gt; to send.<br>
&gt; the variable last_dtmf_duration is always set on the channel with how long<br>
&gt; you should execute sleep<br>
&gt; on the channel in the case of 2833<br>
&gt;<br>
&gt; so call send_dtmf<br>
&gt; execute sleep ${last_dtmf_duration}<br>
&gt;<br>
&gt;<br>
&gt;<br>
&gt; On Wed, Nov 5, 2008 at 3:08 PM, Klaus Teller &lt;<a href="mailto:klaus.teller@gmx.net">klaus.teller@gmx.net</a>&gt; wrote:<br>
&gt;<br>
&gt; &gt; OK, we made some progress on this issue. It appears that if we introduce<br>
&gt; &gt; 50ms delay between the reading (not playing) of the DTMF and the playing<br>
&gt; of<br>
&gt; &gt; the file (or the sending of DTMF), the problem doesn&#39;t occur. And if we<br>
&gt; &gt; place many such calls this delay needs to be increased.<br>
&gt; &gt;<br>
&gt; &gt;<br>
&gt; &gt; What i suspect is happening is that there is some sort of race condition<br>
&gt; or<br>
&gt; &gt; interference between the event processing part of Freeswitch and the<br>
&gt; &gt; handling of synchronous commands such as sending dtmf. I recall Anthony<br>
&gt; &gt; saying few days ago that event delivery is paused when a command<br>
&gt; execution<br>
&gt; &gt; request arrives. So, would it be possible that command execution<br>
&gt; requests<br>
&gt; &gt; are able to interfere on the deliverying of events?<br>
&gt; &gt;<br>
&gt; &gt; Thanks,<br>
&gt; &gt; Klaus.<br>
&gt; &gt;<br>
&gt; &gt;<br>
&gt; &gt;<br>
&gt; &gt;<br>
&gt; &gt; -------- Original-Nachricht --------<br>
&gt; &gt; &gt; Datum: Wed, 5 Nov 2008 14:35:16 -0600<br>
&gt; &gt; &gt; Von: Brian West &lt;<a href="mailto:brian@freeswitch.org">brian@freeswitch.org</a>&gt;<br>
&gt; &gt; &gt; An: <a href="mailto:freeswitch-users@lists.freeswitch.org">freeswitch-users@lists.freeswitch.org</a><br>
&gt; &gt; &gt; Betreff: Re: [Freeswitch-users] Inband DTMF Problem<br>
&gt; &gt;<br>
&gt; &gt; &gt; Extract the RTP audio into wav/au files in wireshark and lets look at<br>
&gt; &gt; &gt; them.<br>
&gt; &gt; &gt;<br>
&gt; &gt; &gt; /b<br>
&gt; &gt; &gt;<br>
&gt; &gt; &gt; On Nov 5, 2008, at 2:30 PM, Klaus Teller wrote:<br>
&gt; &gt; &gt;<br>
&gt; &gt; &gt; &gt; Hi Anthony,<br>
&gt; &gt; &gt; &gt;<br>
&gt; &gt; &gt; &gt; Let me add some few facts.<br>
&gt; &gt; &gt; &gt;<br>
&gt; &gt; &gt; &gt; 1) I am sending DTMF using RFC2833 and the IVR is using Inband<br>
&gt; &gt; &gt; &gt; 2) The problem is not limited to when i send DTMF. It also happens<br>
&gt; &gt; &gt; &gt; when i try to play a file.<br>
&gt; &gt; &gt; &gt; 3) The functions are from my java code. They send commands to<br>
&gt; &gt; &gt; &gt; Freeswitch via socket interface.<br>
&gt; &gt; &gt; &gt; 4) The same functions are working perfectly when the remote IVR<br>
&gt; &gt; &gt; &gt; sends DTMF via RFC2833.<br>
&gt; &gt; &gt; &gt; 5) I have a pause of 2000 ms after sending the DTMF.<br>
&gt; &gt; &gt; &gt;<br>
&gt; &gt; &gt; &gt;<br>
&gt; &gt; &gt; &gt; Let me reformulate my problem. I have a spurious dtmf-# being<br>
&gt; &gt; &gt; &gt; detected by freeswitch where nothing was sent by the other party.<br>
&gt; &gt; &gt; &gt;<br>
&gt; &gt; &gt; &gt; The strange thing to me is that Wireschark (running on the same<br>
&gt; &gt; &gt; &gt; machine as Freeswitch) detects the proper digit sequence.<br>
&gt; &gt; &gt; &gt;<br>
&gt; &gt; &gt; &gt; Klaus.<br>
&gt; &gt; &gt;<br>
&gt; &gt; &gt;<br>
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&gt;<br>
&gt;<br>
&gt;<br>
&gt; --<br>
&gt; Anthony Minessale II<br>
&gt;<br>
&gt; FreeSWITCH <a href="http://www.freeswitch.org/" target="_blank">http://www.freeswitch.org/</a><br>
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&gt;<br>
&gt; AIM: anthm<br>
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</div></div></blockquote></div><br><br clear="all"><br>-- <br>Anthony Minessale II<br><br>FreeSWITCH <a href="http://www.freeswitch.org/">http://www.freeswitch.org/</a><br>ClueCon <a href="http://www.cluecon.com/">http://www.cluecon.com/</a><br>
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