[OpenSIPS-Users] Questions about best practice b2b_logic implementation

[Denys Pozniak]

and comment please this question if possible:
- If nodes operate in anycast + clusterer mode, then in what route should
function t_anycast_replicate() be called?


ср, 18 окт. 2023 г. в 16:49, Denys Pozniak <denys.pozniak at gmail.com>:

> 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
>>
>> _______________________________________________
>> Users mailing list
>> Users at lists.opensips.org
>> http://lists.opensips.org/cgi-bin/mailman/listinfo/users
>>
>
>
> --
>
> BR,
> Denys Pozniak
>
>
>

-- 

BR,
Denys Pozniak
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