<div dir="ltr">Well, this is what I understood from him yesterday but honestly I don't have more insight because I'm not on this project.<div>I will let him clarify tomorrow when he can post more logs and traces.</div><div><br></div><div>Cheers,</div><div>Matteo</div><div class="gmail_extra"><br><div class="gmail_quote">On Wed, Feb 7, 2018 at 2:22 PM, Daniel-Constantin Mierla <span dir="ltr"><<a href="mailto:miconda@gmail.com" target="_blank">miconda@gmail.com</a>></span> wrote:<br><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex">
  
    
  
  <div text="#000000" bgcolor="#FFFFFF">
    <p>Hello,</p>
    <p>not sure I got it, so to clarify: the problem is made by the 100
      Trying arriving at the endpoint after 180 Ringing?<br>
    </p>
    Cheers,<br>
    Daniel<div><div class="m_8210249407410414604h5"><br>
    <br>
    <div class="m_8210249407410414604m_-4826408097238429609moz-cite-prefix">On 07.02.18 14:08, Matteo Campana
      wrote:<br>
    </div>
    </div></div><blockquote type="cite"><div><div class="m_8210249407410414604h5">
      <div dir="ltr">
        <p class="MsoNormal" style="margin:0cm 0cm 0.0001pt;font-size:11pt;font-family:Calibri,sans-serif"><span><span>Dear
              Kamailians,</span></span></p>
        <p class="MsoNormal" style="margin:0cm 0cm 0.0001pt"><font face="Calibri, sans-serif"><span style="font-size:14.6667px">does
              anyone have any idea on the issue below?</span></font><br>
        </p>
        <p class="MsoNormal" style="margin:0cm 0cm 0.0001pt;font-size:11pt;font-family:Calibri,sans-serif"><span style="font-size:11pt">Alessio told me that is always
            reproducible, and he can also provide captures and more
            logs. </span></p>
        <p class="MsoNormal" style="margin:0cm 0cm 0.0001pt;font-size:11pt;font-family:Calibri,sans-serif"><span style="font-size:11pt"><br>
          </span></p>
        <p class="MsoNormal" style="margin:0cm 0cm 0.0001pt;font-size:11pt;font-family:Calibri,sans-serif"><span style="font-size:11pt">Thanks in advance!</span></p>
        <p class="MsoNormal" style="margin:0cm 0cm 0.0001pt;font-size:11pt;font-family:Calibri,sans-serif"><span style="font-size:11pt">Matteo </span><br>
        </p>
        <p class="MsoNormal" style="margin:0cm 0cm 0.0001pt;font-size:11pt;font-family:Calibri,sans-serif"><span><span><br>
            </span></span></p>
        <p class="MsoNormal" style="margin:0cm 0cm 0.0001pt;font-size:11pt;font-family:Calibri,sans-serif"><br>
        </p>
        <p class="MsoNormal" style="margin:0cm 0cm 0.0001pt;font-size:11pt;font-family:Calibri,sans-serif"><span><span><br>
            </span></span></p>
        <p class="MsoNormal" style="margin:0cm 0cm 0.0001pt;font-size:11pt;font-family:Calibri,sans-serif"><a name="m_8210249407410414604_m_-4826408097238429609_m_-4609932790304289415__MailOriginal"><b><span style="font-size:12pt;color:black">From: </span></b></a><span><span style="font-size:12pt;color:black">sr-users <<a href="mailto:sr-users-bounces@lists.kamailio.org" target="_blank">sr-users-bounces@lists.kamail<wbr>io.org</a>>
              on behalf of Alessio Miranda <<a href="mailto:smirolandia@gmail.com" target="_blank">smirolandia@gmail.com</a>><br>
              <b>Reply-To: </b>"Kamailio (SER) - Users Mailing List"
              <<a href="mailto:sr-users@lists.kamailio.org" target="_blank">sr-users@lists.kamailio.org</a>><br>
              <b>Date: </b>Tuesday, 16 January 2018 at 14:18<br>
              <b>To: </b>"<a href="mailto:sr-users@lists.kamailio.org" target="_blank">sr-users@lists.kamailio.org</a>"
              <<a href="mailto:sr-users@lists.kamailio.org" target="_blank">sr-users@lists.kamailio.org</a>><br>
              <b>Subject: </b>[SR-Users] Blind Transfer WS Error<span></span></span></span></p>
        <p class="MsoNormal" style="margin:0cm 0cm 0.0001pt;font-size:11pt;font-family:Calibri,sans-serif"><span><span><span> </span></span></span></p>
        <p class="MsoNormal" style="margin:0cm 0cm 0.0001pt;font-size:11pt;font-family:Calibri,sans-serif"><span><span>Hi,<span></span></span></span></p>
        <p class="MsoNormal" style="margin:0cm 0cm 0.0001pt;font-size:11pt;font-family:Calibri,sans-serif"><span><span><span> </span></span></span></p>
        <p class="MsoNormal" style="margin:0cm 0cm 0.0001pt;font-size:11pt;font-family:Calibri,sans-serif"><span><span>I
              have a problem with the blind transfer via WebSocket,<span></span></span></span></p>
        <p class="MsoNormal" style="margin:0cm 0cm 0.0001pt;font-size:11pt;font-family:Calibri,sans-serif"><span><span>debugging
              from the browser we see that in some cases when the REFER
              is <span></span></span></span></p>
        <p class="MsoNormal" style="margin:0cm 0cm 0.0001pt;font-size:11pt;font-family:Calibri,sans-serif"><span><span>done
              and the sip message "202 Accepted" arrives, <span></span></span></span></p>
        <p class="MsoNormal" style="margin:0cm 0cm 0.0001pt;font-size:11pt;font-family:Calibri,sans-serif"><span><span>the
              message "180 Ringing" arrives first and then the "100
              Trying" <span></span></span></span></p>
        <p class="MsoNormal" style="margin:0cm 0cm 0.0001pt;font-size:11pt;font-family:Calibri,sans-serif"><span><span>and
              the transfer goes in error with "500 JsSIP Internal Error"<span></span></span></span></p>
        <p class="MsoNormal" style="margin:0cm 0cm 0.0001pt;font-size:11pt;font-family:Calibri,sans-serif"><span><span><span> </span></span></span></p>
        <p class="MsoNormal" style="margin:0cm 0cm 0.0001pt;font-size:11pt;font-family:Calibri,sans-serif"><span><span>I
              have an architecture with Kamailio in frontend and
              asterisk in backend <span></span></span></span></p>
        <p class="MsoNormal" style="margin:0cm 0cm 0.0001pt;font-size:11pt;font-family:Calibri,sans-serif"><span><span>on
              the same network, the sip dialogue between FE and BE is in
              SIP / UDP.<span></span></span></span></p>
        <p class="MsoNormal" style="margin:0cm 0cm 0.0001pt;font-size:11pt;font-family:Calibri,sans-serif"><span><span>The
              WebRTC client connects to WebSocket at Kamailio's public
              address.<span></span></span></span></p>
        <p class="MsoNormal" style="margin:0cm 0cm 0.0001pt;font-size:11pt;font-family:Calibri,sans-serif"><span><span><span> </span></span></span></p>
        <p class="MsoNormal" style="margin:0cm 0cm 0.0001pt;font-size:11pt;font-family:Calibri,sans-serif"><span><span>We
              have verified that the sip messages exchanged between
              kamailio and <span></span></span></span></p>
        <p class="MsoNormal" style="margin:0cm 0cm 0.0001pt;font-size:11pt;font-family:Calibri,sans-serif"><span><span>asterisk
              are always correct.<span></span></span></span></p>
        <p class="MsoNormal" style="margin:0cm 0cm 0.0001pt;font-size:11pt;font-family:Calibri,sans-serif"><span><span><span> </span></span></span></p>
        <p class="MsoNormal" style="margin:0cm 0cm 0.0001pt;font-size:11pt;font-family:Calibri,sans-serif"><span><span>Kamailio
              Ver. 4.4.4<span></span></span></span></p>
        <p class="MsoNormal" style="margin:0cm 0cm 0.0001pt;font-size:11pt;font-family:Calibri,sans-serif"><span><span>Asterisk
              Ver. 13.18.3<span></span></span></span></p>
        <p class="MsoNormal" style="margin:0cm 0cm 0.0001pt;font-size:11pt;font-family:Calibri,sans-serif"><span><span>PJSIP
              Ver. 2.6<span></span></span></span></p>
        <p class="MsoNormal" style="margin:0cm 0cm 0.0001pt;font-size:11pt;font-family:Calibri,sans-serif"><span><span>JSSIP
              Ver. 3.2.2<br>
              <br>
              Thanks<br>
              Alessio</span></span><span><span></span></span></p>
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      </div></div><pre>______________________________<wbr>_________________
Kamailio (SER) - Users Mailing List
<a class="m_8210249407410414604m_-4826408097238429609moz-txt-link-abbreviated" href="mailto:sr-users@lists.kamailio.org" target="_blank">sr-users@lists.kamailio.org</a>
<a class="m_8210249407410414604m_-4826408097238429609moz-txt-link-freetext" href="https://lists.kamailio.org/cgi-bin/mailman/listinfo/sr-users" target="_blank">https://lists.kamailio.org/cgi<wbr>-bin/mailman/listinfo/sr-users</a><span class="m_8210249407410414604HOEnZb"><font color="#888888">
</font></span></pre><span class="m_8210249407410414604HOEnZb"><font color="#888888">
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    <br>
    <pre class="m_8210249407410414604m_-4826408097238429609moz-signature" cols="72">-- 
Daniel-Constantin Mierla
<a class="m_8210249407410414604m_-4826408097238429609moz-txt-link-abbreviated" href="http://www.twitter.com/miconda" target="_blank">www.twitter.com/miconda</a> -- <a class="m_8210249407410414604m_-4826408097238429609moz-txt-link-abbreviated" href="http://www.linkedin.com/in/miconda" target="_blank">www.linkedin.com/in/miconda</a>
Kamailio Advanced Training - March 5-7, 2018, Berlin - <a class="m_8210249407410414604m_-4826408097238429609moz-txt-link-abbreviated" href="http://www.asipto.com" target="_blank">www.asipto.com</a>
Kamailio World Conference - May 14-16, 2018 - <a class="m_8210249407410414604m_-4826408097238429609moz-txt-link-abbreviated" href="http://www.kamailioworld.com" target="_blank">www.kamailioworld.com</a></pre>
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