Hello Team
Is there any update on the bellow? Any time estimation? Can we contribute in any way? Best regards Antonis Psaras From: Users <[email protected] <mailto:[email protected]> > On Behalf Of Bogdan-Andrei Iancu Sent: Παρασκευή, 16 Ιανουαρίου 2026 14:43 To: OpenSIPS users mailling list <[email protected] <mailto:[email protected]> >; Johan De Clercq <[email protected] <mailto:[email protected]> >; [email protected] <mailto:[email protected]> Subject: Re: [OpenSIPS-Users] PRACK interworking requirements agreed, we can look into the UPDATE stuff, but let's take it one at a time (as they are not related)... First the PRACK :) Regards, Bogdan-Andrei Iancu OpenSIPS Founder and Developer https://www.opensips-solutions.com https://www.siphub.com On 12.01.2026 18:17, Johan De Clercq wrote: I think that 200 ok’ing UPDATE also should be added. This seems useful when opensips is used as sbc/b2bua (maybe this can go in topology_hiding.so). For the rest, I think that your approach is complete. Verzonden vanuit Outlook voor iOS <https://aka.ms/o0ukef> _____ Van: Users <mailto:[email protected]> <[email protected]> namens Bogdan-Andrei Iancu <mailto:[email protected]> <[email protected]> Verzonden: maandag, januari 12, 2026 5:06 PM Aan: [email protected] <mailto:[email protected]> <mailto:[email protected]> <[email protected]> CC: OpenSIPS users mailling list <mailto:[email protected]> <[email protected]> Onderwerp: Re: [OpenSIPS-Users] PRACK interworking requirements Hey all and A Happy New Year ! Pocking again the topic.... based on the discussion, I see two approached (they do not exclude one each other): a) manual - to generate the PRACK explicitly from script, when handling a reply. As Vlad mentioned, maybe something based on dlg_send_sequential() (but tricky when handling multiple branches / to-tags from upstream). Answering to a PRACK can be done even now, so not a problem. Also inserting the related Supported / Requires hdrs, again, can be done from script. b) auto-mode - to be transparently provided by the dialog module. To be activated by a create_dialog() flag, resulting in auto generating the PRACKs (based on the hdr's in the reply). The module should be also responsible of replying to the PRACK requests and to adjust the hdrs too. Does this sound like a plan ? Regards, Bogdan-Andrei Iancu OpenSIPS Founder and Developer https://www.opensips-solutions.com https://www.siphub.com On 25.11.2025 13:14, Giovanni Maruzzelli wrote: On Tue, Nov 25, 2025, 11:57 Bogdan-Andrei Iancu <[email protected] <mailto:[email protected]> > wrote: The result here should be a dlg dedicated function to generate a PRACK from the onreply_route, like "dlg_answer_with_prack()" kind of function? or should we look into a more automatic approach, like flagging the dialog at creation to automatically generate the PRACK upon replies flagged with so? personally I'm a control freak and would like better an explicit function, maybe even with parameters to modify things if needed :)) -giovanni Regards, Bogdan-Andrei Iancu OpenSIPS Founder and Developer https://www.opensips-solutions.com https://www.siphub.com On 25.11.2025 11:46, Giovanni Maruzzelli wrote: hello OpenSIPSers, in previous mails has been noticed that various ITSPs are starting to require PRACK support. We know that PRACK belongs to endpoints, specifically phones and B2BUAs. But... There can be a use case where OpenSIPS will work as SBC (not necessarily using the b2b module) So, we can have a case where we would like to support that the dialogue module insert the 100rel in the Supported: INVITE's header, and manage to send a PRACK method to acknowledge provisional responses If and when 100rel/PRACK are "generated" by OpenSIPS, they will be filtered out (not propagated) to/from the endpoints, even if the endpoint would like to support it Reference RFC: https://www.ietf.org/rfc/rfc3262.txt I believe this will be enough to make ITSPs happy. Further developments can be moved to future. Would be very very nice to have this feature backported to OpenSIPS 3.6, being it the last of the 3.X series, and an LTS Please let's gather here your thoughts , requests, corrections and observations on this issue. Have a nice Monday you all! -giovanni -- Sincerely, Giovanni Maruzzelli OpenTelecom.IT cell: +39 347 266 56 18 _______________________________________________ Users mailing list [email protected] <mailto:[email protected]> http://lists.opensips.org/cgi-bin/mailman/listinfo/users _______________________________________________ Users mailing list [email protected] <mailto:[email protected]> http://lists.opensips.org/cgi-bin/mailman/listinfo/users
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