Re: [SR-Users] sr-users Digest, Vol 186, Issue 5 - sr-users

5 Nov 2020

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" &lt;Adi.Tabacioiu(a)c-s.ro&gt;
 To: sr-users(a)lists.kamailio.org
 Subject: [SR-Users] Proxy configuration that exit dialog afer INVITE
         -> OK
 Message-ID: &lt;7449102a9f3dbe38b6dba753d1cffcd8.squirrel(a)mail.c-s.ro&gt;
 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