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<font face="monospace">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.<br>
<br>
Regards, </font>
<pre class="moz-signature" cols="72">Bogdan-Andrei Iancu
OpenSIPS Founder and Developer
<a class="moz-txt-link-freetext" href="https://www.opensips-solutions.com">https://www.opensips-solutions.com</a>
<a class="moz-txt-link-freetext" href="https://www.siphub.com">https://www.siphub.com</a></pre>
<div class="moz-cite-prefix">On 24.11.2025 09:56, Antonios Psaras
wrote:<br>
</div>
<blockquote type="cite"
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<p class="MsoNormal">Hello Bogdan.<o:p></o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal">Whatever fits you better.<o:p></o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<div>
<p class="MsoNormal"
style="mso-margin-top-alt:0cm;margin-right:1.0pt;margin-bottom:5.0pt;margin-left:1.0pt"><b><span
style="color:#5F5F5F">Antonis</span></b><span
style="color:#595959"><o:p></o:p></span></p>
</div>
<p class="MsoNormal"><o:p> </o:p></p>
<div>
<div
style="border:none;border-top:solid #E1E1E1 1.0pt;padding:3.0pt 0cm 0cm 0cm">
<p class="MsoNormal"><b>From:</b> Users
<a class="moz-txt-link-rfc2396E" href="mailto:users-bounces@lists.opensips.org"><users-bounces@lists.opensips.org></a> <b>On Behalf Of
</b>Bogdan-Andrei Iancu<br>
<b>Sent:</b> Δευτέρα, 24 Νοεμβρίου 2025 09:31<br>
<b>To:</b> <a class="moz-txt-link-abbreviated" href="mailto:gmaruzz@opentelecom.it">gmaruzz@opentelecom.it</a>; OpenSIPS users mailling
list <a class="moz-txt-link-rfc2396E" href="mailto:users@lists.opensips.org"><users@lists.opensips.org></a>; Giovanni Maruzzelli
<a class="moz-txt-link-rfc2396E" href="mailto:gmaruzz@gmail.com"><gmaruzz@gmail.com></a><br>
<b>Subject:</b> Re: [OpenSIPS-Users] 100rel / PRACK
Interworking<o:p></o:p></p>
</div>
</div>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal"><span
style="font-family:"Courier New"">Hi Giovanni,
Johan, Antonios,<br>
<br>
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 ?<br>
<br>
Best regards,</span><br>
<br>
<o:p></o:p></p>
<pre>Bogdan-Andrei Iancu<o:p></o:p></pre>
<pre><o:p> </o:p></pre>
<pre>OpenSIPS Founder and Developer<o:p></o:p></pre>
<pre> <a href="https://www.opensips-solutions.com"
moz-do-not-send="true" class="moz-txt-link-freetext">https://www.opensips-solutions.com</a><o:p></o:p></pre>
<pre> <a href="https://www.siphub.com" moz-do-not-send="true"
class="moz-txt-link-freetext">https://www.siphub.com</a><o:p></o:p></pre>
<div>
<p class="MsoNormal">On 14.11.2025 11:30, Giovanni Maruzzelli
wrote:<o:p></o:p></p>
</div>
<blockquote style="margin-top:5.0pt;margin-bottom:5.0pt">
<div>
<div>
<p class="MsoNormal">> It really is a mess, to me it
seems that IMS guys are scared of rtp<o:p></o:p></p>
</div>
<div>
<p class="MsoNormal">+1 it is an endpoint thing, trunk
providers are wrong to ask for it (what do they get from
it?)<o:p></o:p></p>
</div>
<div>
<p class="MsoNormal"><o:p> </o:p></p>
</div>
<div>
<p class="MsoNormal">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<o:p></o:p></p>
</div>
<div>
<p class="MsoNormal"><o:p> </o:p></p>
</div>
<div>
<p class="MsoNormal">But I know they (trunk providers)
start to *REQUIRE* PRACK<o:p></o:p></p>
</div>
<div>
<p class="MsoNormal"><o:p> </o:p></p>
</div>
<div>
<p class="MsoNormal">So, probably a module, or an
extension of an existing module, can be warranted and
welcome<o:p></o:p></p>
</div>
<div>
<p class="MsoNormal"><o:p> </o:p></p>
</div>
<div>
<p class="MsoNormal">Possibly on 3.6.X (that's the last
LTS of the 3.0.0 series)<o:p></o:p></p>
</div>
<div>
<p class="MsoNormal"><o:p> </o:p></p>
</div>
<div>
<p class="MsoNormal">Let's open a thread on what
functionalities can be useful in it?<o:p></o:p></p>
</div>
<div>
<p class="MsoNormal"><o:p> </o:p></p>
</div>
<div>
<p class="MsoNormal">-giovanni<o:p></o:p></p>
</div>
<div>
<p class="MsoNormal"><o:p> </o:p></p>
</div>
<p class="MsoNormal"><o:p> </o:p></p>
<div>
<div>
<p class="MsoNormal">On Fri, Nov 14, 2025 at 10:21 AM
Johan De Clercq <<a href="mailto:Johan@democon.be"
moz-do-not-send="true" class="moz-txt-link-freetext">Johan@democon.be</a>>
wrote:<o:p></o:p></p>
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<div>
<p class="MsoNormal">+1. I totally agree with you. <o:p></o:p></p>
<div>
<p class="MsoNormal">It really is a mess, to me it
seems that IMS guys are scared of rtp. <o:p></o:p></p>
</div>
</div>
<p class="MsoNormal"><o:p> </o:p></p>
<div>
<div>
<p class="MsoNormal">Op vr 14 nov 2025 om 10:03
schreef Walter Schober <<a
href="mailto:walter.schober@neotel.at"
target="_blank" moz-do-not-send="true"
class="moz-txt-link-freetext">walter.schober@neotel.at</a>>:<o:p></o:p></p>
</div>
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<div>
<div>
<div>
<p class="MsoNormal"
style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"><span
lang="DE">Hi!<o:p></o:p></span></p>
<p class="MsoNormal"
style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"><span
lang="DE"> <o:p></o:p></span></p>
<p class="MsoNormal"
style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto">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.<span
lang="DE"><o:p></o:p></span></p>
<p class="MsoNormal"
style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto">It is
definitely a endpoint / softswitch feature.
<span lang="DE"><o:p></o:p></span></p>
<p class="MsoNormal"
style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"> <span
lang="DE"><o:p></o:p></span></p>
<p class="MsoNormal"
style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto">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.<span lang="DE"><o:p></o:p></span></p>
<p class="MsoNormal"
style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"> <span
lang="DE"><o:p></o:p></span></p>
<p class="MsoNormal"
style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto">Br<span
lang="DE"><o:p></o:p></span></p>
<p class="MsoNormal"
style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto">Walter <span
lang="DE"><o:p></o:p></span></p>
<p class="MsoNormal"
style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"> <span
lang="DE"><o:p></o:p></span></p>
<div
style="border:none;border-top:solid #E1E1E1 1.0pt;padding:3.0pt 0cm 0cm 0cm">
<p class="MsoNormal"
style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"><b><span
lang="DE">Von:</span></b><span
lang="DE"> Users <<a
href="mailto:users-bounces@lists.opensips.org" target="_blank"
moz-do-not-send="true"
class="moz-txt-link-freetext">users-bounces@lists.opensips.org</a>>
<b>Im Auftrag von </b>Johan De Clercq<br>
<b>Gesendet:</b> Donnerstag, 13.
November 2025 16:29<br>
<b>An:</b> <a
href="mailto:gmaruzz@opentelecom.it"
target="_blank" moz-do-not-send="true"
class="moz-txt-link-freetext">gmaruzz@opentelecom.it</a>;
OpenSIPS users mailling list <<a
href="mailto:users@lists.opensips.org"
target="_blank" moz-do-not-send="true"
class="moz-txt-link-freetext">users@lists.opensips.org</a>><br>
<b>Betreff:</b> Re: [OpenSIPS-Users]
100rel / PRACK Interworking<o:p></o:p></span></p>
</div>
<p class="MsoNormal"
style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"><span
lang="DE"> <o:p></o:p></span></p>
<div>
<p class="MsoNormal"
style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"><span
lang="DE">Giovanni on a side note, what
to do with update ? do you handle it
locally or do you forward it to your
endpoint ? <o:p></o:p></span></p>
<div>
<p class="MsoNormal"
style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"><span
lang="DE"> <o:p></o:p></span></p>
</div>
<div>
<p class="MsoNormal"
style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"><span
lang="DE">BR, Johan. <o:p></o:p></span></p>
</div>
</div>
<p class="MsoNormal"
style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"><span
lang="DE"> <o:p></o:p></span></p>
<div>
<div>
<p class="MsoNormal"
style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"><span
lang="DE">Op do 13 nov 2025 om 15:54
schreef Giovanni Maruzzelli <<a
href="mailto:gmaruzz@gmail.com"
target="_blank"
moz-do-not-send="true"
class="moz-txt-link-freetext">gmaruzz@gmail.com</a>>:<o:p></o:p></span></p>
</div>
<blockquote
style="border:none;border-left:solid #CCCCCC 1.0pt;padding:0cm 0cm 0cm 6.0pt;margin-left:4.8pt;margin-top:5.0pt;margin-right:0cm;margin-bottom:5.0pt">
<div>
<p class="MsoNormal"
style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"><span
lang="DE">Antonio, you may want to
update this feature request from
Johan: <a
href="https://github.com/OpenSIPS/opensips/issues/2076" target="_blank"
moz-do-not-send="true"
class="moz-txt-link-freetext">https://github.com/OpenSIPS/opensips/issues/2076</a><o:p></o:p></span></p>
</div>
<p class="MsoNormal"
style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"><span
lang="DE"> <o:p></o:p></span></p>
</blockquote>
</div>
</div>
</div>
</div>
</blockquote>
</div>
</blockquote>
</div>
</div>
</blockquote>
</div>
<br>
<fieldset class="moz-mime-attachment-header"></fieldset>
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