[OpenSIPS-Users] Questions about best practice b2b_logic implementation

[Ovidiu Sas]

If the internal has a private ip and the external has a public ip, then it
should work ok.

On Thu, Oct 19, 2023 at 03:14 Denys Pozniak <denys.pozniak at gmail.com> wrote:

> > If you have one socket per transport, then the automatic selection
> should work ok.
> For example, I have 3 external interfaces (sip/udp, sip/tcp, sip/tls) and
> 1 internal one (sip/udp).
> If a request comes for an internal one, how will the outgoing routing
> proceed as per needed transport (eg, this is sip/tls) in b2b? What will
> OpenSIPS look at ($ru/Route/...)?
>
> ср, 18 окт. 2023 г. в 19:34, Ovidiu Sas <osas at voipembedded.com>:
>
>> 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
>>>
>> _______________________________________________
>> Users mailing list
>> Users at lists.opensips.org
>> http://lists.opensips.org/cgi-bin/mailman/listinfo/users
>>
>
>
> --
>
> BR,
> Denys Pozniak
>
>
> _______________________________________________
> Users mailing list
> Users at lists.opensips.org
> http://lists.opensips.org/cgi-bin/mailman/listinfo/users
>
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