<html xmlns:v="urn:schemas-microsoft-com:vml" xmlns:o="urn:schemas-microsoft-com:office:office" xmlns:w="urn:schemas-microsoft-com:office:word" xmlns:m="http://schemas.microsoft.com/office/2004/12/omml" xmlns="http://www.w3.org/TR/REC-html40">
<head>
<meta http-equiv="Content-Type" content="text/html; charset=iso-8859-1">
<meta name="Generator" content="Microsoft Word 15 (filtered medium)">
<!--[if !mso]><style>v\:* {behavior:url(#default#VML);}
o\:* {behavior:url(#default#VML);}
w\:* {behavior:url(#default#VML);}
.shape {behavior:url(#default#VML);}
</style><![endif]--><style><!--
/* Font Definitions */
@font-face
{font-family:"Cambria Math";
panose-1:2 4 5 3 5 4 6 3 2 4;}
@font-face
{font-family:Calibri;
panose-1:2 15 5 2 2 2 4 3 2 4;}
/* Style Definitions */
p.MsoNormal, li.MsoNormal, div.MsoNormal
{margin-top:0cm;
margin-right:0cm;
margin-bottom:8.0pt;
margin-left:0cm;
line-height:107%;
font-size:11.0pt;
font-family:"Calibri",sans-serif;
mso-ligatures:standardcontextual;
mso-fareast-language:EN-US;}
span.EmailStyle17
{mso-style-type:personal-compose;
font-family:"Calibri",sans-serif;
color:windowtext;}
.MsoChpDefault
{mso-style-type:export-only;
font-family:"Calibri",sans-serif;
mso-fareast-language:EN-US;}
.MsoPapDefault
{mso-style-type:export-only;
margin-bottom:8.0pt;
line-height:107%;}
@page WordSection1
{size:612.0pt 792.0pt;
margin:72.0pt 90.0pt 72.0pt 90.0pt;}
div.WordSection1
{page:WordSection1;}
--></style><!--[if gte mso 9]><xml>
<o:shapedefaults v:ext="edit" spidmax="1026" />
</xml><![endif]--><!--[if gte mso 9]><xml>
<o:shapelayout v:ext="edit">
<o:idmap v:ext="edit" data="1" />
</o:shapelayout></xml><![endif]-->
</head>
<body lang="FR-CA" link="#0563C1" vlink="#954F72" style="word-wrap:break-word">
<div class="WordSection1">
<p class="MsoNormal">Hi,<o:p></o:p></p>
<p class="MsoNormal"><span lang="EN-US">We have this issue where a Peer challenges with 401 some messages like INVITE, PRACK, etc.<o:p></o:p></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.<o:p></o:p></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.<o:p></o:p></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.<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US"><o:p> </o:p></span></p>
<p class="MsoNormal"><span lang="EN-US">Did anyone ever have a similar issue, and is there a fix for it ?<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US"><o:p> </o:p></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.<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US"><o:p> </o:p></span></p>
<p class="MsoNormal" style="margin-bottom:0cm;line-height:normal"><span lang="EN-US" style="mso-ligatures:none;mso-fareast-language:FR-CA"><o:p> </o:p></span></p>
<table class="MsoNormalTable" border="0" cellspacing="0" cellpadding="0" style="border-collapse:collapse">
<tbody>
<tr style="height:55.65pt">
<td width="219" valign="top" style="width:164.3pt;border:none;border-right:solid windowtext 1.0pt;padding:0cm 5.4pt 0cm 5.4pt;height:55.65pt">
<p class="MsoNormal" style="margin-bottom:0cm;line-height:normal"><a href="http://www.b2b2c.ca/"><span style="color:windowtext;mso-fareast-language:FR-CA;text-decoration:none"><img border="0" width="189" height="89" style="width:1.9687in;height:.927in" id="Picture_x0020_1" src="cid:image001.png@01D9FCFD.C1ED2550"></span></a><span style="mso-ligatures:none;mso-fareast-language:FR-CA"><o:p></o:p></span></p>
</td>
<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"><b><span style="font-size:12.0pt;mso-ligatures:none;mso-fareast-language:FR-CA">Vincent Dubois<o:p></o:p></span></b></p>
<p class="MsoNormal" style="margin-bottom:0cm;line-height:normal"><b><span style="color:black;mso-ligatures:none;mso-fareast-language:FR-CA">Programmeur/Spécialiste VOIP<o:p></o:p></span></b></p>
<p class="MsoNormal" style="margin-bottom:0cm;line-height:normal"><span style="color:black;mso-ligatures:none;mso-fareast-language:FR-CA"><o:p> </o:p></span></p>
<p class="MsoNormal" style="margin-bottom:0cm;line-height:normal"><span style="color:black;mso-ligatures:none;mso-fareast-language:FR-CA">514-908-5420/1-800-965-9065
<o:p></o:p></span></p>
<p class="MsoNormal" style="margin-bottom:0cm;line-height:normal"><span lang="FR" style="color:black;mso-ligatures:none;mso-fareast-language:FR-CA">2700 rue Michelin, Laval (QC) </span><span style="color:black;mso-ligatures:none;mso-fareast-language:FR-CA">H7L
5Y1<o:p></o:p></span></p>
</td>
</tr>
</tbody>
</table>
<p class="MsoNormal" style="margin-bottom:0cm;line-height:normal"><span style="mso-ligatures:none;mso-fareast-language:FR-CA"><o:p> </o:p></span></p>
<p class="MsoNormal"><o:p> </o:p></p>
</div>
</body>
</html>