<div dir="auto">Just disable PRACK for the subscriber or the domain. It will then not be offered by Sipwise and the device can’t demand it. We’ve noticed PRACK gives more problems than it solves. </div><div><br><div class="gmail_quote"><div dir="ltr" class="gmail_attr">On Thu, 12 Oct 2023 at 23:18, Vincent Dubois <<a href="mailto:VDubois@b2b2c.com">VDubois@b2b2c.com</a>> wrote:<br></div><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex">
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<p class="MsoNormal">Hi,<u></u><u></u></p>
<p class="MsoNormal"><span lang="EN-US">We have this issue where a Peer challenges with 401 some messages like INVITE, PRACK, etc.<u></u><u></u></span></p>
<p class="MsoNormal"><span lang="EN-US">The sipwise platform (9.5.2) does resend the INVITE with the authentication header, but it doesn’t do it for PRACK.<u></u><u></u></span></p>
<p class="MsoNormal"><span lang="EN-US">It actually send a 403 Loose-Routing Forbidden to the end user device, and never resends the PRACK with authentication to the peer.<u></u><u></u></span></p>
<p class="MsoNormal"><span lang="EN-US">So then that call is never officially established because the peer expects a valid PRACK, and peer eventually terminates the call after a timeout.<u></u><u></u></span></p>
<p class="MsoNormal"><span lang="EN-US"><u></u> <u></u></span></p>
<p class="MsoNormal"><span lang="EN-US">Did anyone ever have a similar issue, and is there a fix for it ?<u></u><u></u></span></p>
<p class="MsoNormal"><span lang="EN-US"><u></u> <u></u></span></p>
<p class="MsoNormal"><span lang="EN-US">PS: I have a ticket opened with sipwise for almost a week now, but no answers.<u></u><u></u></span></p>
<p class="MsoNormal"><span lang="EN-US"><u></u> <u></u></span></p>
<p class="MsoNormal" style="margin-bottom:0cm;line-height:normal"><span lang="EN-US"><u></u> <u></u></span></p>
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<p class="MsoNormal" style="margin-bottom:0cm;line-height:normal"><a href="http://www.b2b2c.ca/" target="_blank"><span style="color:windowtext;text-decoration:none"><img border="0" src="cid:18b268fbb09ad7999131" style="width:189px;max-width:100%"></span></a><span><u></u><u></u></span></p>
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<p class="MsoNormal" style="margin-bottom:0cm;line-height:normal"><b><span style="font-size:12.0pt">Vincent Dubois<u></u><u></u></span></b></p>
<p class="MsoNormal" style="margin-bottom:0cm;line-height:normal"><b><span style="color:black">Programmeur/Spécialiste VOIP<u></u><u></u></span></b></p>
<p class="MsoNormal" style="margin-bottom:0cm;line-height:normal"><span style="color:black"><u></u> <u></u></span></p>
<p class="MsoNormal" style="margin-bottom:0cm;line-height:normal"><span style="color:black">514-908-5420/1-800-965-9065
<u></u><u></u></span></p>
<p class="MsoNormal" style="margin-bottom:0cm;line-height:normal"><span lang="FR" style="color:black"><a href="https://www.google.com/maps/search/2700+rue+Michelin,+Laval+(QC)+H7L%0D%0A+5Y1?entry=gmail&source=g">2700 rue Michelin,</a> <a href="https://www.google.com/maps/search/2700+rue+Michelin,+Laval+(QC)+H7L%0D%0A+5Y1?entry=gmail&source=g">Laval (QC)</a> </span><span style="color:black"><a href="https://www.google.com/maps/search/2700+rue+Michelin,+Laval+(QC)+H7L%0D%0A+5Y1?entry=gmail&source=g">H7L
5Y1</a></span></p></td></tr></tbody></table></div></div><div lang="FR-CA" link="#0563C1" vlink="#954F72" style="word-wrap:break-word"><div class="m_-5168045436531935231WordSection1"><table border="0" cellspacing="0" cellpadding="0" style="border-collapse:collapse"><tbody><tr style="height:55.65pt"><td width="357" valign="top" style="width:267.7pt;padding:0cm 5.4pt 0cm 5.4pt;height:55.65pt"><p class="MsoNormal" style="margin-bottom:0cm;line-height:normal"><span style="color:black"><u></u><u></u></span></p>
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<p class="MsoNormal" style="margin-bottom:0cm;line-height:normal"><span><u></u> <u></u></span></p>
<p class="MsoNormal"><u></u> <u></u></p>
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