[OpenSIPS-Users] Questions about best practice b2b_logic implementation

[Denys Pozniak]

Thank you for such a cool and detailed answer!
But I would like to clarify the following:

>Custom headers can be set for each b2b_entity during the entity setup via
the extra_hdrs and extra_hdrs_bodies [4] [5].
Do I understand correctly that this only works for initial invites?

>For now, the outgoing socket is set by opensips internally. There were
some fixes related to this, make sure that you are using the latest
opensips version.
But I have several sockets and how can I influence the choice?

ср, 18 окт. 2023 г. в 15:59, Ovidiu Sas <osas at voipembedded.com>:

> Hello Denys,
>
> Dialog module should *never* be mixed with the b2b module.
> For b2b calls one can use the $b2b_logic.ctx vars [1].
> For b2b tracing use the 'b' scope in trace() [2].
> There are some issues as not all provisional replies are traced [3].
> Custom headers can be set for each b2b_entity during the entity setup
> via the extra_hdrs and extra_hdrs_bodies [4] [5].
> For now, the outgoing socket is set by opensips internally. There were
> some fixes related to this, make sure that you are using the latest
> opensips version.
>
> -ovidiu
>
> [1] https://opensips.org/docs/modules/3.4.x/b2b_logic.html#b2b_logic.ctx
> [2] https://opensips.org/docs/modules/3.4.x/tracer.html#func_trace
> [3] https://github.com/OpenSIPS/opensips/issues/3194
> [4]
> https://opensips.org/docs/modules/3.4.x/b2b_logic.html#func_b2b_server_new
> [5]
> https://opensips.org/docs/modules/3.4.x/b2b_logic.html#func_b2b_client_new
>
>
> On Wed, Oct 18, 2023 at 9:16 AM Denys Pozniak <denys.pozniak at gmail.com>
> wrote:
> >
> > Hello!
> >
> > I'm trying to implement topology hiding (b2b_logic) in an existing
> config, but there are points that are not clear to me:
> > - Can I somehow use dialog variables in b2b mode? if not, any
> alternative? I see they are created for the initial leg (with state=3), but
> not available in the b2b mode;
> > - How to configure a tracer (proto_hep) in b2b mode?
> > - How to convert transport and select outgoing socket (the question has
> already been asked in a separate mail)?
> > - How can I add the necessary custom X-headers also for in-dialog
> requests (for example, for re-INVITE)? It does not work via insert_hf in
> [script_req_route] neither via function b2b_client_new() as well;
> > - If nodes operate in anycast + clusterer mode, then in what route
> should function t_anycast_replicate() be called?
> >
> > --
> >
> > BR,
> > Denys Pozniak
> >
> >
> > _______________________________________________
> > Users mailing list
> > Users at lists.opensips.org
> > http://lists.opensips.org/cgi-bin/mailman/listinfo/users
>
>
>
> --
> VoIP Embedded, Inc.
> http://www.voipembedded.com
>
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>


-- 

BR,
Denys Pozniak
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