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<tt>Hello Brett,<br>
<br>
If the 6xx_blocking is on (by default), when receiving a 6xx
reply, TM will select that branch as winning branch and it will
not allow any addition of new branches - all will fail (in failure
route).<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>
<br>
On 05/03/2013 12:04 AM, Brett Nemeroff wrote:
<blockquote
cite="mid:CAPwC5wxpTZSmknr7oS28LwjYEitBU-fq_wkE7esut=KA+WbOMg@mail.gmail.com"
type="cite">
<div dir="ltr">Hello list,
<div>I have a question about default handling of 6xx replies and
acc. I have a 1.8 build that does NOT have disable_6xx_block
set (it's just default). </div>
<div><br>
</div>
<div style="">I'm seeing cases where when I get a 6xx (after a
18x reply) where failure route causes it to roll to another
block, but it'll never t_relay the call out; or I think that
is what is happening.</div>
<div style=""><br>
</div>
<div style="">So my first carrier attempt results in 18x then
606. I get a 606 for the invite in missed_calls. Then I relay
both the 606 and a 500 Server Unavailable 19/SL to the
originator. Weird thing is, then missed_calls shows the second
carrier it would have tried, but SIP traces show it never did.
I guess I"m wondering how the default handing changes the
callflow when a failure route is hit with a 6xx reply? </div>
<div style=""><br>
</div>
<div style="">Thanks,</div>
<div style="">Brett</div>
<div style=""><br>
</div>
</div>
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</pre>
</blockquote>
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