[SR-Users] Client Registration and Call over Kamailio

[serkan celik]

Hi Caner,
Thanks for the answer but actually what you suggested is not what I looked
for. I 'd rather considering to register Kamailio to the IMS with the helps
of some modules. I tried to use UAC module to send a new registration to
IMS but it did not work as I expected

On Fri, Nov 9, 2018 at 3:07 PM YAS0 CANER <caner_yaso at hotmail.com> wrote:

> Hello ,
> I think you need a proxy kamailio in front of ims because u try to make
> more p-cscf. So it make it hard to solve problems an scenario . In my
> opinion, you can use f5\netscaler or similiar app.
>
> Good luck
>
> Yasin Caner
>
>
> serkan celik <srkancelik at gmail.com> şunları yazdı (9 Kas 2018 16:30):
>
> > Hi all,
> >
> > I am using Kamailio as a proxy in front of a 3rd part Open IMS (Not IMS
> modules in kamailio).
> > I have defined Kamailio as an outbound proxy in Soft clients(I have
> configured IMS users info in Soft Clients). When I send register from
> client to IMS, Register message is sent to IMS over Kamailio. Kamailio
> forwards this received Register to the 3rd party IMS. Finally the client is
> registered into IMS over Kamailio. However when I try to make a call from
> registered users (both registered over Kamailio), IMS sends 403 Forbidden -
> "Not Registered! You must register first with a S-CSCF" to Kamailio.
> > When I debugged the issue I found the reason why IMS sends 403. When IMS
> receives an Invite message from Kamailio it checks whether source IP which
> Invite is sent registered or not. As I make registration over Kamailio
> without changing contact header, IMS registers the user with the contact IP
> (which is the client IP).
> > So to make a call from Soft client (IMS users) over Kamailio I also need
> to register Kamailio source IP as well.To deal with the issue I have
> changed the contact address of Register message coming from Soft client
> with Kamailio IP  on Kamailio. Then IMS registered Kamailio IP as a contact
> when registering IMS user. But this time when I make a call from Soft
> client  over Kamailio, IMS sends Termination Invite to Kamailio. So to
> finalize the call Kamailio has to route this termination Invite to the
> terminating IMS user .
> > Is there any better approach to overcome this issue. Which is the better
> approach to use Kamailio in front of IMS. I want to both register and make
> a call from Soft clients over Kamailio to the IMS.
> >
> > Regards,
> > Serkan CELIK
> > _______________________________________________
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> > sr-users at lists.kamailio.org
> > https://lists.kamailio.org/cgi-bin/mailman/listinfo/sr-users
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