you can add a Record Route parameter to the initial INVITE [1] and for that parameter after loose_route() for in-dialog INVITE [2]
[1] https://www.kamailio.org/docs/modules/5.5.x/modules/rr.html#rr.f.add_rr_para... [2] https://www.kamailio.org/docs/modules/5.5.x/modules/rr.html#rr.f.check_route...
On Fri, Feb 16, 2024 at 4:25 PM Benoît Panizzon via sr-users < sr-users@lists.kamailio.org> wrote:
Hi
I have come across this challenge:
Initial invite (no to_tag) has is authenticated and has credentials. So a lookup for the username is made to determine if the customer needs backhauling, thus rtpengine needs to be engaged.
On a subsequent invite (re-invite to change codec or to refresh session timer) there is a to_tag so it is being routed without sending a challenge and has no auth username.
I don't use dialog on the registrar. This is another transaction. So I don't know, if I need to engage rtpengine on that DSP or not.
What is the best way to find out, if rtpengine is already handling that callid?
if(rtpengine_query_v("j", "$var(dummy)")) { rtpengine_manage(); }
basically works, but generates a couple of ugly error messages in the log as rtpengine_query_v does not find the call.
Is there a nicer way?
-- Mit freundlichen Grüssen
-Benoît Panizzon- @ HomeOffice und normal erreichbar
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