[OpenSIPS-Users] 100rel / PRACK Interworking

[Bogdan-Andrei Iancu]

Hi Giovanni, indeed, the mailman is misbehaving, looking into the issue..

Regards,

Bogdan-Andrei Iancu

OpenSIPS Founder and Developer
   https://www.opensips-solutions.com
   https://www.siphub.com

On 25.11.2025 11:45, Giovanni Maruzzelli wrote:
> Actually I have already done it, but maybe there was a glitch in the 
> mailing list server.
>
> I'll resend it immediately now
>
> On Tue, Nov 25, 2025 at 10:43 AM Bogdan-Andrei Iancu 
> <bogdan at opensips.org> wrote:
>
>     OK, Giovanni, would you take the role of starting a new thread
>     (was your idea :D) here and filling in all the PRACK related
>     requirements that you have in mind at this step - and we can use
>     that as starting point for the discussion.
>
>     Regards,
>
>     Bogdan-Andrei Iancu
>
>     OpenSIPS Founder and Developer
>        https://www.opensips-solutions.com
>        https://www.siphub.com
>
>     On 24.11.2025 09:56, Antonios Psaras wrote:
>>
>>     Hello Bogdan.
>>
>>     Whatever fits you better.
>>
>>     *Antonis*
>>
>>     *From:* Users <users-bounces at lists.opensips.org>
>>     <mailto:users-bounces at lists.opensips.org> *On Behalf Of
>>     *Bogdan-Andrei Iancu
>>     *Sent:* Δευτέρα, 24 Νοεμβρίου 2025 09:31
>>     *To:* gmaruzz at opentelecom.it; OpenSIPS users mailling list
>>     <users at lists.opensips.org> <mailto:users at lists.opensips.org>;
>>     Giovanni Maruzzelli <gmaruzz at gmail.com> <mailto:gmaruzz at gmail.com>
>>     *Subject:* Re: [OpenSIPS-Users] 100rel / PRACK Interworking
>>
>>     Hi Giovanni, Johan, Antonios,
>>
>>     Talking about the PRACK, yes, it sounds like a good idea to get
>>     such support in the dialog module. And yes, we need to start with
>>     drafting the functionality to be provided - should we do this
>>     over the #2076 github ticket (mentioned by Giovanni) or open new
>>     thread here, backed-up by a GH wiki page to aggregate the
>>     requirements ?
>>
>>     Best regards,
>>
>>     Bogdan-Andrei Iancu
>>       
>>     OpenSIPS Founder and Developer
>>        https://www.opensips-solutions.com
>>        https://www.siphub.com
>>
>>     On 14.11.2025 11:30, Giovanni Maruzzelli wrote:
>>
>>         > It really is a mess, to me it seems that IMS guys are
>>         scared of rtp
>>
>>         +1 it is an endpoint thing, trunk providers are wrong to ask
>>         for it (what do they get from it?)
>>
>>         when you (trunk provider) know that the phone is actually
>>         ringing, what do you gain? It has meaning when you control
>>         the whole chain, end-to-end (carriers, IMS) not at all for
>>         deskphone->itsp->trunk->whatever->carrier->endphone
>>
>>         But I know they (trunk providers) start to *REQUIRE* PRACK
>>
>>         So, probably a module, or an extension of an existing module,
>>         can be warranted and welcome
>>
>>         Possibly on 3.6.X (that's the last LTS of the 3.0.0 series)
>>
>>         Let's open a thread on what functionalities can be useful in it?
>>
>>         -giovanni
>>
>>         On Fri, Nov 14, 2025 at 10:21 AM Johan De Clercq
>>         <Johan at democon.be> wrote:
>>
>>             +1.  I totally agree with you.
>>
>>             It really is a mess, to me it seems that IMS guys are
>>             scared of rtp.
>>
>>             Op vr 14 nov 2025 om 10:03 schreef Walter Schober
>>             <walter.schober at neotel.at>:
>>
>>                 Hi!
>>
>>                 I also want to point out that its not done with PRACK
>>                 handling alone. Followup (multiple) UPDATE with codec
>>                 changes must be handled, too. Sometimes that lead
>>                 into AMR(WB)/PCMA/G722/OPUS transcoding in early
>>                 state. Including all the DTMF PT issues.
>>
>>                 It is definitely a endpoint / softswitch feature.
>>
>>                 I know those ignorant IMS guys pushing out their
>>                 internal mess to plain RFC3261 interconnects and
>>                 forcing tasks previously done by an MSC to the rest
>>                 of the world.
>>
>>                 Br
>>
>>                 Walter
>>
>>                 *Von:*Users <users-bounces at lists.opensips.org> *Im
>>                 Auftrag von *Johan De Clercq
>>                 *Gesendet:* Donnerstag, 13. November 2025 16:29
>>                 *An:* gmaruzz at opentelecom.it; OpenSIPS users mailling
>>                 list <users at lists.opensips.org>
>>                 *Betreff:* Re: [OpenSIPS-Users] 100rel / PRACK
>>                 Interworking
>>
>>                 Giovanni on a side note, what to do with update ? do
>>                 you handle it locally or do you forward it to your
>>                 endpoint ?
>>
>>                 BR, Johan.
>>
>>                 Op do 13 nov 2025 om 15:54 schreef Giovanni
>>                 Maruzzelli <gmaruzz at gmail.com>:
>>
>>                     Antonio, you may want to update this feature
>>                     request from Johan:
>>                     https://github.com/OpenSIPS/opensips/issues/2076
>>
>>
>>     _______________________________________________
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>
>
>
> -- 
> Sincerely,
>
> Giovanni Maruzzelli
> OpenTelecom.IT
> cell: +39 347 266 56 18
>
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