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    <tt>So, OpenSIPS receives the INVITE - do you see any OpenSIPS sending
      out any reply (see logs or local traces on the OpenSIPS machine).<br>
      <br>
      Regards,<br>
    </tt>
    <pre class="moz-signature" cols="72">Bogdan-Andrei Iancu
OpenSIPS Founder and Developer
<a class="moz-txt-link-freetext" href="http://www.opensips-solutions.com">http://www.opensips-solutions.com</a></pre>
    <div class="moz-cite-prefix">On 14.07.2016 12:27, Adnan Kurshid
      wrote:<br>
    </div>
    <blockquote
cite="mid:AM4PR0701MB224418EEFA0BE2B9922BA52F92320@AM4PR0701MB2244.eurprd07.prod.outlook.com"
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          <p>Dear <span>Bogdan-Andrei</span>,</p>
          <p><br>
          </p>
          <p>Thanks for your quick reply. I am behind NAT64 network and
            I am able to connect to SIP Server but when I make a SIP
            call then I don't get any response from server (time out).
            But when I am on IPv4 network then everything works fine. I
            have enabled
          </p>
          <pre style="font-size: 0.9em; font-family: &quot;Lucida Console&quot;, &quot;Andale Mono&quot;, &quot;Courier New&quot;, Courier; margin-top: 0px; margin-bottom: 0px; color: rgb(102, 102, 102); font-style: normal; font-variant: normal; font-weight: normal; letter-spacing: normal; line-height: 21.5933px; orphans: auto; text-align: start; text-indent: 0px; text-transform: none; widows: 1; word-spacing: 0px; -webkit-text-stroke-width: 0px; background-color: rgb(255, 255, 255);">dns_try_ipv6=yes</pre>
          <p><br>
          </p>
          <p>in the config file.<br>
          </p>
          <p><br>
          </p>
          <p><font face="Calibri,Arial,Helvetica,sans-serif" size="3"
              color="black"><span
                style="font-size:12pt;background-color:white;"></span></font></p>
          <font face="Calibri,Arial,Helvetica,sans-serif" size="3"
            color="black">
            <div style="margin-top:0;margin-bottom:0;"><font size="2"
                color="red"><span style="font-size:10pt;">Follow</span></font><font
                size="2" color="red"><span style="font-size:10pt;">ing
                  is t</span></font><font size="2" color="red"><span
                  style="font-size:10pt;">he details of demo accounts
                  that we are using.</span></font></div>
            <div style="margin-top:0;margin-bottom:0;"><font color="red">1)
              </font><font color="red"><a class="moz-txt-link-abbreviated" href="mailto:500@54.235.173.114">500@54.235.173.114</a> password: 500</font><br>
            </div>
            <div style="margin-top:0;margin-bottom:0;"> </div>
            <div><font size="2"><span style="font-size:10pt;"><font
                    color="red">2) </font><font color="red">600
                    password 600</font></span></font></div>
          </font>
          <p><br>
          </p>
          <p>Regards,</p>
          <p><br>
          </p>
          <p>Adnan Khurshid<br>
          </p>
        </div>
        <hr style="display:inline-block;width:98%" tabindex="-1">
        <div id="divRplyFwdMsg" dir="ltr"><font style="font-size:11pt"
            face="Calibri, sans-serif" color="#000000"><b>From:</b>
            Bogdan-Andrei Iancu <a class="moz-txt-link-rfc2396E" href="mailto:bogdan@opensips.org">&lt;bogdan@opensips.org&gt;</a><br>
            <b>Sent:</b> Thursday, July 14, 2016 2:16:51 PM<br>
            <b>To:</b> OpenSIPS users mailling list; Adnan Kurshid<br>
            <b>Subject:</b> Re: [OpenSIPS-Users] Supporting IPv6-only
            Networks</font>
          <div> </div>
        </div>
        <div><tt>Hi Adnan,<br>
            <br>
            OpenSIPS does support IPv6 (including version 1.9, which
            anyhow is really, really old) - I'm quite sure it is a
            configuration issue on your side.<br>
            <br>
            Could you details what exactly is failing in your test ?<br>
            <br>
            Regards,<br>
          </tt>
          <pre class="moz-signature" cols="72">Bogdan-Andrei Iancu
OpenSIPS Founder and Developer
<a moz-do-not-send="true" id="LPlnk734171" class="moz-txt-link-freetext" href="http://www.opensips-solutions.com">http://www.opensips-solutions.com</a></pre>
          <div class="moz-cite-prefix">On 14.07.2016 08:44, Adnan
            Kurshid wrote:<br>
          </div>
          <blockquote
cite="mid:AM4PR0701MB22446868B0CF6C97D69E0A5192320@AM4PR0701MB2244.eurprd07.prod.outlook.com"
            type="cite">
            <div id="divtagdefaultwrapper"
style="font-size:12pt;color:#000000;background-color:#FFFFFF;font-family:Calibri,Arial,Helvetica,sans-serif;">
              <p>We are using Opensips version 1.9 and when we tested
                our iPhone app on IPv6-only network then we are not able
                to make calls. On IPv4 network everything is working
                fine. Now apple app review team rejects the app if it is
                not supporting IPv6-only network. For more details
                please visit <a moz-do-not-send="true" id="LPlnk64419"
                  href="https://developer.apple.com/news/?id=05042016a"
                  class="OWAAutoLink">
                </a><a moz-do-not-send="true"
                  class="moz-txt-link-freetext"
                  href="https://developer.apple.com/news/?id=05042016a">https://developer.apple.com/news/?id=05042016a</a></p>
              <p><br>
              </p>
              <p>Is IPv6-only network supported in any current version
                of opensips server?</p>
              <p><br>
              </p>
              <p>Regards,</p>
              <p><br>
              </p>
              <p>Adnan Khurshid<br>
              </p>
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                          font-weight: 400; font-size: 21px;
                          font-family:
                          &quot;wf_segoe-ui_light&quot;,&quot;Segoe UI
                          Light&quot;,&quot;Segoe WP
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                            style="text-decoration: none;"
                            id="LPUrlAnchor_14684749665120.36211508496520617">Supporting
                            IPv6-only Networks - News and Updates -
                            Apple ...</a></div>
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                          developer.apple.com</div>
                        <div style="display: block; color: rgb(102, 102,
                          102); font-weight: 400; font-family:
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                          id="LPDescription_14684749665230.014678933098122737">
                          Get updates, tips, and how-to information on a
                          range of development, App Store, and Mac App
                          Store topics.</div>
                      </td>
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            <pre wrap="">_______________________________________________
Users mailing list
<a moz-do-not-send="true" class="moz-txt-link-abbreviated" href="mailto:Users@lists.opensips.org">Users@lists.opensips.org</a>
<a moz-do-not-send="true" class="moz-txt-link-freetext" href="http://lists.opensips.org/cgi-bin/mailman/listinfo/users">http://lists.opensips.org/cgi-bin/mailman/listinfo/users</a>
</pre>
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