[OpenSIPS-Users] ACK incorrect handle when use domain

[Bogdan-Andrei Iancu]

First, as a note - opensips is doing what the config file tells to do.

Second, ACK is a sequential requests and RFC defines different routing 
algs for initial and sequential requests.

I suggest you to follow this webinar where the SIP routing is explained:
       http://www.opensips.org/Resources/Webinars#toc11

Regards,
Bogdan


fengbin wrote:
> Hi,Bogdan
>
> Thank you for your reply.
>
> I have a question on your comment.
>
> in RFC3261 16.12 (in the following)
> The first step of proxy should lookup location table to replace 
> request-uri if there is.
> In my case I think proxy should first replace ACK's request uri to 
> callee's sip identity and then go to loose_route....
>
> I added lookup script before loose_route then it works.
>
>    1.  The proxy will inspect the Request-URI.  If it indicates a
>           resource owned by this proxy, the proxy will replace it with
>           the results of running a location service.  Otherwise, the
>           proxy will not change the Request-URI.
>
>       2.  The proxy will inspect the URI in the topmost Route header
>           field value.  If it indicates this proxy, the proxy removes it
>           from the Route header field (this route node has been
>           reached).
>
>       3.  The proxy will forward the request to the resource indicated
>           by the URI in the topmost Route header field value or in the
>           Request-URI if no Route header field is present.  The proxy
>           determines the address, port and transport to use when
>           forwarding the request by applying the procedures in [4] to
>           that URI.
>   
>
>
>
>
> On Thu, Jan 6, 2011 at 7:27 PM, Bogdan-Andrei Iancu 
> <bogdan at voice-system.ro <mailto:bogdan at voice-system.ro>> wrote:
>
>     Hi,
>
>     The ACK gets to our opensips because of the Route hdr (Route:
>     <sip:10.61.20.146;lr=on>); opensips will further route the ACK
>     based on RURI which is "sip:stct_1000 at siptest.org
>     <mailto:sip%3Astct_1000 at siptest.org>"...is this domain resolvable
>     by DNS and pointing to callee (10.61.20.200:5060
>     <http://10.61.20.200:5060>) ? Callee has to place in 200 OK its
>     contact address that can be used to route back to it...so if its
>     contact "sip:stct_1000 at siptest.org
>     <mailto:sip%3Astct_1000 at siptest.org>" does not point back to
>     callee, it is a callee issue.
>
>     Regards,
>     Bogdan
>
>     fengbin wrote:
>
>         Hi,Mogdan,
>
>         Thank you for your help.
>
>         The enclosed is the pcap file.
>         ------------------------------------------------------------------------
>
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>          
>
>
>
>     -- 
>     Bogdan-Andrei Iancu
>     OpenSIPS Event - expo, conf, social, bootcamp
>     2 - 4 February 2011, ITExpo, Miami,  USA
>     www.voice-system.ro <http://www.voice-system.ro>
>
>
>     _______________________________________________
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>     http://lists.opensips.org/cgi-bin/mailman/listinfo/users
>
>
>
>
> -- 
> arithdon
> ------------------------------------------------------------------------
>
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-- 
Bogdan-Andrei Iancu
OpenSIPS Event - expo, conf, social, bootcamp
2 - 4 February 2011, ITExpo, Miami,  USA
www.voice-system.ro