<div dir="ltr">tshark is quite good at analyzing the SIP and RTP packet captures. But it's rather CPU-intensive, so it's better to launch it after the call in nice mode.<br></div><div class="gmail_extra"><br><div class="gmail_quote">On Mon, Jan 18, 2016 at 1:58 AM, Dave Horton <span dir="ltr"><<a href="mailto:dave@dchorton.com" target="_blank">dave@dchorton.com</a>></span> wrote:<br><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex"><div style="word-wrap:break-word">Well, my issue is that ‘complete silence’ could mean no RTP packets at all, or it could mean RTP packets arriving with all zeros, and I need to distinguish between the two scenarios. I read the recent issue regarding detecting speaker events in a conference to determine silence, so I suppose I instead of bridging I could put the two legs into conference and look for the lack of a ‘start talking’ event within some number of seconds. But I would prefer to sick with bridging the legs if possible. I am unclear about how the recording is going to look in the case where there is no RTP coming in, and whether I could really inspect the recording to know for sure whether or not I am receiving packets….<span class="HOEnZb"><font color="#888888"><div><br></div></font></span><div><span class="HOEnZb"><font color="#888888">Dave</font></span><div><div class="h5"><br><div><br></div><div><br><div><div>On Jan 17, 2016, at 5:29 PM, Stanislav Sinyagin <<a href="mailto:ssinyagin@gmail.com" target="_blank">ssinyagin@gmail.com</a>> wrote:</div><br><div><div dir="ltr"><div>you can, for example, start a recording within a running session, run it for 10 seconds, and then build a histogram using SOX. You would then easily distinguish a complete silence from speech.<br><br></div>Also at the end of a call, you can get the RTP statistics in channel variables before it gets destroyed, so you can extract the number of RTP packets received.<br><br><br></div><div class="gmail_extra"><br><div class="gmail_quote">On Sun, Jan 17, 2016 at 11:17 PM, Dave Horton <span dir="ltr"><<a href="mailto:dave@dchorton.com" target="_blank">dave@dchorton.com</a>></span> wrote:<br><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex">I have a need to bridge two channels together and then somehow verify that I am getting RTP packets from both directions. The need stems from a desire to detect a one-way audio situation in rare nat’ed scenarios where signaling gets established but one party may have restrictive firewall rules preventing his/her RTP stream from reaching the FS endpoint. Any ideas?<br>
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