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.

Cheers,

Yufei

Message: 7
Date: Thu, 5 Nov 2020 12:26:16 +0200
From: "Adrian Tabacioiu" <Adi.Tabacioiu@c-s.ro>
To: sr-users@lists.kamailio.org
Subject: [SR-Users] Proxy configuration that exit dialog afer INVITE
-> OK
Message-ID: <7449102a9f3dbe38b6dba753d1cffcd8.squirrel@mail.c-s.ro>
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