Try also looking for <span style="color:rgb(34,34,34);font-family:arial,sans-serif;font-size:13px;background-color:rgb(255,255,255)">CHANNEL_PROGRESS_MEDIA</span><div><font color="#222222" face="arial, sans-serif"><br></font></div>

<div><font color="#222222" face="arial, sans-serif">Also check the logs to see what&#39;s actually happening on the calls. It&#39;s possible for call to go directly to the answer state without having a ringing state if that&#39;s what the callee signals.<br>

</font><div><br></div><div>-Steve</div><div><br></div><div><br><br><div class="gmail_quote">On 4 June 2013 12:57, mbo <span dir="ltr">&lt;<a href="mailto:mbodbg@gmx.net" target="_blank">mbodbg@gmx.net</a>&gt;</span> wrote:<br>

<blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex">I&#39;m looking for an event on which I can trigger when a channel is ringing. From what I have seen in the wiki this should be the CHANNEL_PROGRESS event. We have connected freeswitch with a Sangoma A104 card to the PSTN. The problem is that we do not always get a CHANNEL_PROGRESS event. It seems that the event is only fired when we receive a PROGRESS message in the Q.931 protocol, which is not always the case. However in Q.931 we always get an ALERT message, which seems not to be translated into a reasonable ESL message. We also tried to trigger on the CHANNEL_CALLSTATE event with Parameter Original-Channel-Call-State=RINGING,however also this event was sometime missing. The field Channel-Call-State is either &quot;ACTIVE&quot;, &quot;EARLY&quot; or DOWN, but never &quot;RINGING&quot;<br>


<br>
Is there any other event I can trigger on, or is it a bug when I never receive a CHANNEL_CALLSTATE event with Channel-Call-State=RINIGING?<br>
<br>
Thanks<br>
<br>
Markus<br>
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