[OpenSIPS-Users] OpenSIPs generate PRACK

[M S]

After 302, when you receive 183 from the provider (that expects PRACK), you
forward that 183 to the other side of conversation - and that side is
responsible for generating PRACK and sending it to opensips to forward to
the provider.

On Mon, Feb 12, 2024 at 1:16 PM Social Boh <social at bohboh.info> wrote:

> Hello,
>
> the flow chart is this:
>
> -> INVITE (to OpensiSIP)
>
> Relay to Redirect Server
>
> Redirect server reply with a 302 and a contact that OpenSIPs use to create
>
> INVITE (OpenSIPs) ->
>
> <- 183 (provider) with  Require: 100rel
>
> PRACK (from OpenSIPs)
>
> I don't know how create this PRACK
>
> I have:
>
> modparam("b2b_entities", "passthru_prack", 0)
>
> but this is not enough and I have to use (I think)
>
> b2b_init_request("top hiding");
>
> but this function works only on Request Route and I catch the 302 in the
> failure route.
>
> Thank you
>
> Regards
>
> ---
> I'm SoCIaL, MayBe
>
> El 12/02/2024 a las 4:36 a. m., Ihor Olkhovskyi escribió:
>
> You should relay 183 to original source (ione that is sending INVITE) and
> got PRACK from there.
> That would be the most correct way of handling this
>
> Le lun. 12 févr. 2024 à 02:29, Social Boh <social at bohboh.info> a écrit :
>
>> Maybe someone can help me.
>>
>> This is the scenario.
>>
>> OpenSIPs receive a INVITE and send it to a server that reply with a 302
>> message (always)
>>
>> Then OpenSIPs, in the failure route, take the user part present in the
>> 302 contact header, change the destination IP and send with t_relay
>>
>> The destination reply with a 183 with Require: 100rel header so OpenSIPs
>> have to reply with a PRACK. This is my problem.
>>
>> I don't know which is the best way to handle this (the PRACK)
>>
>> Thank you
>>
>> Regards
>>
>> ---
>> I'm SoCIaL, MayBe
>>
>> El 9/02/2024 a las 6:46 a. m., Social Boh escribió:
>> > Hello list,
>> >
>> > can OpenSIPs generate a PRACK message to reply a 180/183 message?
>> >
>> > Thank you
>> >
>> > Regards
>> >
>> > ---
>> > I'm SoCIaL, MayBe
>> >
>> >
>> > _______________________________________________
>> > Users mailing list
>> > Users at lists.opensips.org
>> > http://lists.opensips.org/cgi-bin/mailman/listinfo/users
>>
>> _______________________________________________
>> Users mailing list
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>>
>
>
> --
> Best regards,
> Ihor (Igor)
>
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