27 Jul
2019
27 Jul
'19
11:18 a.m.
Hello Ali,
I think there is a misunderstanding, When the PSI that hosted by the AS
send a initial request to SCSCF, the SCSCF really considered the request is
on behalf of IMPU. Then you have to make choice where the request
forwarded. In this case you have to check some conditions. The
P_Asserted_Identity is one of them. More conditions are appear in TS
24.229, 5.7.3 that you mentioned it before.
Nevertheless if you want make call to a registered user from your AS, Why
you don't send your reguest to ICSCF? because the ICSCF could found the
IMPU is registered or not (by LIR/LIA) and forward your request to SCSCF
and UE.
*With Best Regards.Mojtaba*
On Sat, Jul 27, 2019 at 9:47 AM Ali Shirvani <aj.shirvani(a)gmail.com> wrote:
Hello Mojtaba,
Thanks for your reply, I just tested P-Asserted-Identity, but S-CSCF
doesn't route the request to the registered client.
Regards,
Ali
On Wed, Jul 24, 2019 at 6:02 PM Mojtaba <mespio(a)gmail.com> wrote:
--
--Mojtaba Esfandiari.S
According to TS 24.229, The AS could send request
to SCSCF, too.
But some rules shall be obeied.
For example did you add P-Asserted-Identity header to your request?
With Best Regards.Mojtaba
On Wed, 24 Jul 2019, 17:19 Ali Shirvani <aj.shirvani(a)gmail.com wrote:
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Hello Mojtaba,
Thanks for your reply. You are completely correct, my current
configuration work fine when request initiated from UEs, but I want to
handle SIP requests that initiated by application server.
When UE sends request to S-CSCF, kamailio fetch iFC from HSS and check
if the request match with iFC or not, if it matched kamailio forward the
request to the application server.
But when application server send request to S-CSCF, isc_from_as('orig')
return false and I couldn't forward request to the target UE.
Regards,
Ali
On Wed, Jul 24, 2019 at 3:45 PM Mojtaba <mespio(a)gmail.com> wrote:
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Hello Ali,
The SCSCF has IFC service for decision what it should do with incoming
SIP message. During check all rules in IFC, If it match with one or some
rules, actually it marked with that rules. Then the real meaning of marking
is the SIP message is matched with one or some rules in IFC.
With Best Regards.
On Wed, Jul 24, 2019 at 2:48 PM Ali Shirvani <aj.shirvani(a)gmail.com>
wrote:
> Hi all,
>
> I read some portion of imc_isc_mod.c, specially isc_from_as function.
> In that function there is some function call that searching for some marks
> in the SIP message. Also I read section 5.7.3 from TS 24.229 but I didn't
> find the marking mechanism that used in isc_from_as function.
>
> Would you please point me to the technical specification that
> implemented in IMS_ISC module?
>
> Regards,
> Ali
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--Mojtaba Esfandiari.S
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