Antonio, you may want to update this feature request from Johan: https://github.com/OpenSIPS/opensips/issues/2076
On Thu, Nov 13, 2025 at 3:48 PM Antonios Psaras <[email protected]> wrote: > Hello Giovanni > > > > I totally agree with you. PRACK is an endpoint feature. But as you know, > working with IMS, and having all kind or end point implementations of sip > stack you need to do the dirty job in the middle for interoperability > reasons. Commercial SBC have that feature called 100rel Interworking which > can be enabled per Trunk. Hence, if a carrier requires 100rel/PRACK > enforcement and the end point does not supporting it, the function is > engaged and handles the PRACK locally. > > > > I will check Bogdan suggestion but in the first read looks like a tmp work > around which I am not sure if that can be scaled to few hundreds of CPS > that we work with. > > > > As this is a feature that will be needed for VoLTE/5G/IMS networks my > suggestion is to create a module for that. > > > > Regards > > > > > > *From:* Giovanni Maruzzelli <[email protected]> > *Sent:* Πέμπτη, 13 Νοεμβρίου 2025 16:37 > *To:* [email protected]; OpenSIPS users mailling list < > [email protected]> > *Subject:* Re: [OpenSIPS-Users] 100rel / PRACK Interworking > > > > > > > > El 26/02/2024 a las 7:43 a. m., Bogdan-Andrei Iancu escribió: > > >* yes, you can use the b2b_logic (together with b2b_entities) for that, * > > >* but it may be a too heavy tool for the purpose. Maybe you can try to * > > >* generate the PRACK from OpenSIPS level by using the t_uac_dlg MI * > > >* function [1] via the mi_script module [2] - basically to trigger that * > > >* MI cmd from the onreply_route, when receiving the 180 reply.* > > > > > >* [1] https://opensips.org/html/docs/modules/3.4.x/tm.html#mi_t_uac_dlg > ><https://opensips.org/html/docs/modules/3.4.x/tm.html#mi_t_uac_dlg>* > > >* [2] https://opensips.org/html/docs/modules/3.4.x/mi_script.html#afunc_mi > ><https://opensips.org/html/docs/modules/3.4.x/mi_script.html#afunc_mi> * > > > > > > > > On Thu, Nov 13, 2025 at 3:34 PM Giovanni Maruzzelli <[email protected]> > wrote: > > > > > > eg: https://lists.opensips.org/pipermail/users/2024-March/047880.html > > > > > > > > On Thu, Nov 13, 2025 at 3:27 PM Giovanni Maruzzelli <[email protected]> > wrote: > > Hello Antonio, > > > > PRACK is actually an endpoint feature, at the proxy level you can only > fake it... > > > > -giovanni > > > > On Thu, Nov 13, 2025 at 3:14 PM Antonios Psaras <[email protected]> > wrote: > > Dear Team > > > > As many carriers requires 100rel for interoperability reason with IMS, the > need for 100rel interworking is mandatory. Is there any solution available > to implement that on OpenSIPs Proxy level? > > > > Regards > > > > Antonis Psaras > > > > > > _______________________________________________ > Users mailing list > [email protected] > http://lists.opensips.org/cgi-bin/mailman/listinfo/users > > > > > -- > > Sincerely, > > Giovanni Maruzzelli > OpenTelecom.IT > cell: +39 347 266 56 18 > > > > > -- > > Sincerely, > > Giovanni Maruzzelli > OpenTelecom.IT > cell: +39 347 266 56 18 > > > > > -- > > Sincerely, > > Giovanni Maruzzelli > OpenTelecom.IT > cell: +39 347 266 56 18 > -- Sincerely, Giovanni Maruzzelli OpenTelecom.IT cell: +39 347 266 56 18
_______________________________________________ Users mailing list [email protected] http://lists.opensips.org/cgi-bin/mailman/listinfo/users
