Hello everybody,
I have installed an IMS core using Kamailio and FHoSS.
In this environment, I am able to successfully register Bob and Alice with the
same S-CSCF.
However, when I try to make a voice call between Bob and Alice it is not
established.
The
code received is "403 Forbidden - You must register first with a
S-CSCF". This code is generated by the P-CSCF because the Contact Header
that is checked against the database ("location" table) it is not
found.
When I look up manually the "location" MySQL table, there are two things that
surprise me:
-
The Contact header (AOR column content) that is included in the INVITE
Requet URI when entering in the P-CSCF is present in the table. So why
the pcscf_is_registered ("location") returns false?
- When Bob
registers two Contacts are stored, the first one is the one included in
the REGISTER message generated from Bob IMS Client. However, the second
Contact is the one present in the 200 OK message (coming from the
S-CSCF) which is different from the one present in the REGISTER (the
only thing different is the UDP port). Why the S-CSCF (with the default
kamailio.cfg) doesn't the Contact header and changes the UDP port? Is
this the standard behaviour? I don't think so...
Thanks for your attention
Regards, _______________________________________________
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