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<tt>Hi Nabeel,<br>
<br>
Well, first check your SIP traffic and see which party is
generating the 408 reply - is your opensips or the callee ?<br>
<br>
Does OpenSIPS forwards the call to the callee ?<br>
<br>
Regards,<br>
</tt>
<pre class="moz-signature" cols="72">Bogdan-Andrei Iancu
OpenSIPS Founder and Developer
<a class="moz-txt-link-freetext" href="http://www.opensips-solutions.com">http://www.opensips-solutions.com</a></pre>
<div class="moz-cite-prefix">On 05.01.2016 16:55, Nabeel wrote:<br>
</div>
<blockquote
cite="mid:CA+vx6K+Dj3yPR7GOGUFQps35hL3CHfc5-=kAhgd0pJOBd6o2wg@mail.gmail.com"
type="cite">
<p dir="ltr">Hello,</p>
<p dir="ltr">I have an SIP client which works fine during the
first 15-20 minutes of registration. Registration has an expiry
of 24 hours, but after approximately 15-20 minutes of idle
registration, attempts to call the other phone fails with '408
Request Timeout' error. Re-registering the caller's phone makes
no improvement to this, but re-registering the callee's phone
allows the calls to go through for another 15-20 minutes.</p>
<p dir="ltr">I understand that Request Timeout can be initiated by
either the client or the server. The know that the possible
reasons are:</p>
<p dir="ltr">1) The callee/endpoint to be reached is somehow set
on passive mode and not responding to any call</p>
<p dir="ltr">2) The server does not get proper information about
the location info of the endpoint after query. </p>
<p dir="ltr">And in the server logs, I only see this:</p>
<p dir="ltr">ACC: call missed:
timestamp=1445625568;method=INVITE;from_tag=z9hG4bK58506340;to_tag=;call_id=879087082370@2a04:4a41:111:cf09::1d92:e0ac%4;code=408;reason=Request
Timeout</p>
<p dir="ltr">However, I am unsure how to troubleshoot this further
and how to go about determining the exact cause. Any advice or
tips would be very helpful. </p>
<br>
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</pre>
</blockquote>
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