10 Nov
2018
10 Nov
'18
2:25 a.m.
Hello,
Pcscf adds a path header for s-cscf. So s-csxf can return directly p-cscf.
After saving on p-cscf , u can manipulate r-uri address and then t relay. So nothing gonna
be changed but r-uri.
$ru =“sip:”+$rU+”pcscf.com:4060”
t_relay()
Did you try it?
Yasin Caner
iPhone’umdan gönderildi
Olle E. Johansson <oej@edvina.net<mailto:oej@edvina.net>> şunları yazdı (9 Kas
2018 18:06):
You may want to look at using the Path header so that the IMS platform - if it supports it
- routes calls back through Kamailio. If so, you can forward registrations as you do.
I don’t really know much about IMS; so see this as a guess. Kamailio supports using the
path header.
/O
On 9 Nov 2018, at 16:03, serkan celik
<srkancelik@gmail.com<mailto:srkancelik@gmail.com>> wrote:
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@hotmail.com<mailto:caner_yaso@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@gmail.com<mailto:srkancelik@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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