Basically, FreeSWITCH sends occasional re-invites to the remote party to make sure the call is still valid. If no response is received it will assume the call has ended and drop the call. This behavior is completely valid. However, this can also show up potential NAT/firewall issues, where the NAT mapping is being lost.<div>
<br></div><div>I have come across people that deliberately block these re-invites, who obviously have a fetish for zombie calls clogging up their systems...<br><br><div class="gmail_quote">On 16 December 2012 21:53, Avi Marcus <span dir="ltr"><<a href="mailto:avi@avimarcus.net" target="_blank">avi@avimarcus.net</a>></span> wrote:<br>
<blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex"><div dir="ltr"><div>I'm trying to clear up my CDRs from errors, if possible... I see a bunch of Recovery On Timer Expire and they mostly seem to be after 45 seconds of ring time (there is progress).</div>
<div>Does that basically mean it rang for 40+ seconds before some timer somewhere kicked in and ended the call?</div>
<div>So it's basically a "no answer" or "no user response"?</div><div><br></div><div>Thanks,</div><div><span style="font-family:Verdana,Arial,Helvetica,sans-serif">-Avi</span></div>
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