[SR-Users] Proxy configuration that exit dialog afer INVITE -> OK

[Adrian Tabacioiu]

Hello,

Thank you for response.
In my case, my client wants to have this behavior, its not my choice; that
is the server only proxy in the initial transaction, and the UA continues
in direct all the following dialog.

I comment out the record_route() functions and I see in wireshark that I
obtain requested behavior, hope this have no side effects.

Next, I would like to make a stateless proxy, that still manages
registrations and routes the messages, to compare with no record route.

Best regards,
Adrian



> Hi,
>
> Here's an example kamailio.cfg that uses record_route so in-dialog
> requests
> will go through the Kamailio proxy:
> https://github.com/kamailio/kamailio/blob/master/etc/kamailio.cfg
> There are many other example cfg files:
> https://github.com/kamailio/kamailio/tree/master/misc/examples
>
> Any server that wants to see the in-dialog messages needs to add itself to
> the record route list when receiving the initial INVITE for example. If a
> server is not in the list of record routes, then in-dialog requests will
> not be sent to the server. Headers that are most important in terms of
> routing are R-URI, Route, Record-Route, Contact, Via.
>
> Via header is for routing responses, while Record-Route is for in-dialog
> requests.
>
> I've put a few tips and some resources here about starting with Kamailio,
> which hopefully may help you a bit:
> http://tao-communications-ltd.simplesite.com/447576389
>
> Cheers,
> Yufei
>
>>* Message: 7
> *>* Date: Thu, 5 Nov 2020 12:26:16 +0200
> *>* From: "Adrian Tabacioiu" <Adi.Tabacioiu at c-s.ro
> <https://lists.kamailio.org/cgi-bin/mailman/listinfo/sr-users>>
> *>* To: sr-users at lists.kamailio.org
> <https://lists.kamailio.org/cgi-bin/mailman/listinfo/sr-users>
> *>* Subject: [SR-Users] Proxy configuration that exit dialog afer INVITE
> *>*         -> OK
> *>* Message-ID: <7449102a9f3dbe38b6dba753d1cffcd8.squirrel at
> mail.c-s.ro
> <https://lists.kamailio.org/cgi-bin/mailman/listinfo/sr-users>>
> *>* Content-Type: text/plain;charset=iso-8859-1
> *>>>* Hello all,
> *>>* Am I new in the usage of kamailio, sorry if I ask somehow something
> simple
> *>* or terribly wrong .
> *>>* I need to test a configuration of Kamailio which exit the dialog
> between
> *>* UA after the first OK (that means it will not receive the following
> ACK,
> *>* BYE).
> *>>* I understand that in theory this is possible in two configuration
> types:
> *>* - no Record Route header
> *>* - or stateless proxy
> *>>* First question:
> *>* Am I correct with the choices above?
> *>* Can I find example configuration for this two modes ?
> *>>* Question 2:
> *>* two or more proxy should be inter-connected, removing the Record Route
> *>* header would interfere with proxy routing ? (should not the "Via"
> *>* information be sufficient?)
> *>>* Thank you in advance for help.
> *>>* Best regards,
> *>* Adrian Tabacioiu
> *>
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