[SR-Users] handling BYEs generated by dialog-timeout

[Alex Balashov]

Hi Paolo,

Have a look at this article (shameless plug - I am the author):

http://www.evaristesys.com/blog/sip-udp-fragmentation-and-kamailio-the-sip-header-diet/

-- Alex

On Fri, Jan 18, 2019 at 11:20:59PM +0100, * Paolo Visintin - evosip.cloud wrote:

> Hi Alex,
> thanks for your suggestion,
> maybe RR with DNS alias could be a way to go!
> Will try asap !
> And another question,  how do you suggest do make a diet to an INVITE with
> Auth , RR and SDP that exceed the 1500 mtu size ? (without using topos )
> 
> Many thanks!
> 
> Paolo
> 
> Il giorno ven 18 gen 2019 alle ore 22:19 Alex Balashov <
> abalashov at evaristesys.com> ha scritto:
> 
> > It seems to me this problem would be more easily solved by using
> > Record-Route as intended, and finding a way to float the IP address of
> > the proxy, or injecting a (reliably resolvable!) DNS alias into RR.
> >
> > On Fri, Jan 18, 2019 at 10:14:28PM +0100, * Paolo Visintin - evosip.cloud
> > wrote:
> >
> > > Hi Alex,
> > >
> > > I relay packets with another kamailio on top, that is not using
> > > record-route; the "inner" kamailio sends packets setting the $du relaying
> > > always to proxy.
> > > It works well except for packets generated directly in "inner" kamailio
> > > (double bye generated by dialog-timeout).
> > >
> > > Paolo
> > >
> > >
> > > Il giorno ven 18 gen 2019 alle ore 22:06 Alex Balashov <
> > > abalashov at evaristesys.com> ha scritto:
> > >
> > > > Hi,
> > > >
> > > > Perhaps it is worthwhile to ask the question: why do you want to
> > > > manipulate $du for these internally generated BYEs? What is the root
> > > > problem you are trying to solve?
> > > >
> > > > -- Alex
> > > >
> > > > On Fri, Jan 18, 2019 at 03:27:19PM +0100, * Paolo Visintin -
> > evosip.cloud
> > > > wrote:
> > > >
> > > > > Hello!
> > > > >
> > > > > I'm wondering if someone have experience in changing $du on local
> > > > kamailio
> > > > > generated packets (like BYE generated at the dialog-timeout) I'm
> > trying
> > > > to
> > > > > manipulate in `event_route[tm:local-request]` with no success.
> > > > >
> > > > > In the end I have it working using the `forward()` function and then
> > > > using
> > > > > `exit;` but in this case instead of having 2 BYEs , kamailio sends 4
> > BYEs
> > > > > (2 with original $du, 2 with new $du)
> > > > >
> > > > > this an example :
> > > > > event_route[tm:local-request] {
> > > > >   if ($rm == "BYE") {
> > > > >     route(SELECT_OUTBOUND_PROXY);
> > > > >     forward();
> > > > >     exit;
> > > > >   }
> > > > > }
> > > > >
> > > > > I'm using a kamailio proxy on top with no record-route (we want to
> > have
> > > > > multiple instances of proxy that can change ip address).
> > > > >
> > > > > Thanks in advance!
> > > > >
> > > > > Paolo
> > > >
> > > > > _______________________________________________
> > > > > Kamailio (SER) - Users Mailing List
> > > > > sr-users at lists.kamailio.org
> > > > > https://lists.kamailio.org/cgi-bin/mailman/listinfo/sr-users
> > > >
> > > >
> > > > --
> > > > Alex Balashov | Principal | Evariste Systems LLC
> > > >
> > > > Tel: +1-706-510-6800 / +1-800-250-5920 (toll-free)
> > > > Web: http://www.evaristesys.com/, http://www.csrpswitch.com/
> > > >
> > > > _______________________________________________
> > > > Kamailio (SER) - Users Mailing List
> > > > sr-users at lists.kamailio.org
> > > > https://lists.kamailio.org/cgi-bin/mailman/listinfo/sr-users
> > > >
> >
> > > _______________________________________________
> > > Kamailio (SER) - Users Mailing List
> > > sr-users at lists.kamailio.org
> > > https://lists.kamailio.org/cgi-bin/mailman/listinfo/sr-users
> >
> >
> > --
> > Alex Balashov | Principal | Evariste Systems LLC
> >
> > Tel: +1-706-510-6800 / +1-800-250-5920 (toll-free)
> > Web: http://www.evaristesys.com/, http://www.csrpswitch.com/
> >
> > _______________________________________________
> > Kamailio (SER) - Users Mailing List
> > sr-users at lists.kamailio.org
> > https://lists.kamailio.org/cgi-bin/mailman/listinfo/sr-users
> >

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-- 
Alex Balashov | Principal | Evariste Systems LLC

Tel: +1-706-510-6800 / +1-800-250-5920 (toll-free) 
Web: http://www.evaristesys.com/, http://www.csrpswitch.com/