Hi Brett.

So, who fails? UAs, openSIPS, something else?


From: users-boun...@lists.opensips.org
[mailto:users-boun...@lists.opensips.org] On Behalf Of Brett Nemeroff
Sent: Wednesday, January 19, 2011 5:23 PM
To: OpenSIPS users mailling list
Subject: Re: [OpenSIPS-Users] B2B and "404 Not here"

On Wed, Jan 19, 2011 at 4:21 AM, Anton Zagorskiy
<a.zagors...@oyster-telecom.ru> wrote:
Bogdan, you are right!
I sent 404 from script because of BYE, that was sent from B2B to openSIPS is
has_totag() but not loose_route()


Just a quick comment.. 

"404 Not Here" is generated by the top of the script and not by the location
lookup further down in the demo if I recall correctly.

From the way I understand it, normally this occurs because the RURI of the
BYE doesn't match the contact RURI of the original request. Essentially the
proxy can't match the transaction and rejects it. I've seen improper use of
some of the NAT tools do this before
-Brett




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