Check route[NATMANAGE] in default configuration [1]. Replies are
handled via branch flags.


[1] 
https://github.com/kamailio/kamailio/blob/dad7f3ff3af02d086c1cb3f915f1502bca127d58/etc/kamailio.cfg#L867-L916

On Mon, Feb 19, 2024 at 10:48 AM Benoit Panizzon <[email protected]> wrote:
>
> Hi Bastian
>
> > you can add a Record Route parameter to the initial INVITE [1] and for that
> > parameter after loose_route() for in-dialog INVITE [2]
>
> Thank you, that looks promising.
>
> But now I face another issue with parallel branching.
>
> On the branch route I do add_rr_param(";rtp=yes") if I need to backhaul
> RTP towards that $nh.
> I also set $avp(rtp) = 1 to engage rtpengine on transaction replies in
> my MANAGE_REPLY route.
>
> check_rr_param works fine on subsequent transactions. But not on the
> initial one with branches.
>
> But assume I got two parallel branches. One needs rtp backhauling, the
> other one does not.
>
> How can I, within my MANAGE_REPLY route, figure out, if I am
> processing a reply which needs backhauling or not?
>
> Mit freundlichen Grüssen
>
> -Benoît Panizzon-
> --
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