[OpenSIPS-Users] Questions about best practice b2b_logic implementation

[Ovidiu Sas]

I haven’t experimented with this … so I can’t comment.

-ovidiu

On Wed, Oct 18, 2023 at 11:13 Denys Pozniak <denys.pozniak at gmail.com> wrote:

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