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    <tt>Hi,<br>
      <br>
      Haven't follow if it is or not a fragmentation issue, but if it
      is, instead of switching to TCP, you can use the compression
      module to reduce the size of the SIP packet. See the mc_compact()
      function:<br>
         
<a class="moz-txt-link-freetext" href="http://www.opensips.org/html/docs/modules/2.1.x/compression.html#id293508">http://www.opensips.org/html/docs/modules/2.1.x/compression.html#id293508</a><br>
      <br>
      If running an older version (than 2.1), you may simply consider
      removing (via remove_hf()) some optional headers (like User-Agent,
      Date, Time, etc)<br>
      <br>
      Regards,    </tt><br>
    <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 05.05.2016 23:28, Patrick Wakano
      wrote:<br>
    </div>
    <blockquote
cite="mid:CAPu3kNXYTgv-JnJZzE0CfgEXyLNtkTH=MDdeOOdDgB0B3vEdcA@mail.gmail.com"
      type="cite">
      <div dir="ltr">It seems you are facing packet fragmentation, and
        the second part of the fragment isn't reaching opensips...
        <div>maybe your wifi router (if it is the only element between
          your endpoint and opensips) is not correct handling this
          situation....</div>
        <div>I would sugest a change to TCP as your next step for
          debugging this problem!</div>
      </div>
      <div class="gmail_extra"><br>
        <div class="gmail_quote">On Thu, May 5, 2016 at 5:23 PM, Nabeel
          <span dir="ltr">&lt;<a moz-do-not-send="true"
              href="mailto:nabeelshikder@gmail.com" target="_blank">nabeelshikder@gmail.com</a>&gt;</span>
          wrote:<br>
          <blockquote class="gmail_quote" style="margin:0 0 0
            .8ex;border-left:1px #ccc solid;padding-left:1ex">
            <div dir="ltr">Yes, it is definitely listening on the
              non-standard port:
              <div><br>
              </div>
              <div>
                <div># netstat -lnp | grep opensips</div>
              </div>
              <div>udp        0      0 162.xxx.x.110:<span style="color:rgb(0,0,0);white-space:pre-wrap">12341</span>  
                  0.0.0.0:*     1750/opensips<br>
              </div>
              <div><br>
              </div>
              <div>In fact, it even seems to register correctly, but the
                INVITE does not get through.</div>
              <div><br>
              </div>
              <div>I have OpenSIPS set on debug level 4 but did not see
                anything in the log.</div>
              <div><br>
              </div>
            </div>
            <div class="HOEnZb">
              <div class="h5">
                <div class="gmail_extra"><br>
                  <div class="gmail_quote">On 5 May 2016 at 21:14, Tito
                    Cumpen <span dir="ltr">&lt;<a
                        moz-do-not-send="true"
                        href="mailto:tito@xsvoce.com" target="_blank"><a class="moz-txt-link-abbreviated" href="mailto:tito@xsvoce.com">tito@xsvoce.com</a></a>&gt;</span>
                    wrote:<br>
                    <blockquote class="gmail_quote" style="margin:0 0 0
                      .8ex;border-left:1px #ccc solid;padding-left:1ex">
                      <div dir="ltr">Nabeel,
                        <div><br>
                        </div>
                        <div><br>
                        </div>
                        <div>Did you verify that your opensips server is
                          listening on this non Standard port ?</div>
                        <div><br>
                        </div>
                        <div>
                          <p><span>run </span></p>
                          <p><span>netstat -lnp | grep opensips</span></p>
                        </div>
                      </div>
                      <div>
                        <div>
                          <div class="gmail_extra"><br>
                            <div class="gmail_quote">On Thu, May 5, 2016
                              at 4:12 PM, Nabeel <span dir="ltr">&lt;<a
                                  moz-do-not-send="true"
                                  href="mailto:nabeelshikder@gmail.com"
                                  target="_blank"><a class="moz-txt-link-abbreviated" href="mailto:nabeelshikder@gmail.com">nabeelshikder@gmail.com</a></a>&gt;</span>
                              wrote:<br>
                              <blockquote class="gmail_quote"
                                style="margin:0 0 0 .8ex;border-left:1px
                                #ccc solid;padding-left:1ex">
                                <div dir="ltr">Tito Campen, I took the
                                  trace on my OpenSIPS server, which is
                                  the receiving proxy. However, OpenSIPS
                                  did not add anything to the server's
                                  log itself.</div>
                                <div>
                                  <div>
                                    <div class="gmail_extra"><br>
                                      <div class="gmail_quote">On 5 May
                                        2016 at 21:08, Tito Cumpen <span
                                          dir="ltr">&lt;<a
                                            moz-do-not-send="true"
                                            href="mailto:tito@xsvoce.com"
                                            target="_blank"><a class="moz-txt-link-abbreviated" href="mailto:tito@xsvoce.com">tito@xsvoce.com</a></a>&gt;</span>
                                        wrote:<br>
                                        <blockquote class="gmail_quote"
                                          style="margin:0 0 0
                                          .8ex;border-left:1px #ccc
                                          solid;padding-left:1ex">
                                          <div dir="ltr">Nabel, You
                                            should should take a trace
                                            at the receiving proxy to
                                            verify the traffic is even
                                            getting there. If there is
                                            no sdp received from the UAS
                                            you would not see rtp
                                            traversing at all. Using non
                                            Standard points doesn't
                                            assure you that messaging
                                            traffic will traverse.</div>
                                          <div>
                                            <div>
                                              <div class="gmail_extra"><br>
                                                <div class="gmail_quote">On
                                                  Thu, May 5, 2016 at
                                                  3:54 PM, Tito Cumpen <span
                                                    dir="ltr">&lt;<a
                                                      moz-do-not-send="true"
href="mailto:tito@xsvoce.com" target="_blank"><a class="moz-txt-link-abbreviated" href="mailto:tito@xsvoce.com">tito@xsvoce.com</a></a>&gt;</span>
                                                  wrote:<br>
                                                  <blockquote
                                                    class="gmail_quote"
                                                    style="margin:0 0 0
                                                    .8ex;border-left:1px
                                                    #ccc
                                                    solid;padding-left:1ex">
                                                    <div dir="ltr">Adding
                                                      to Bogdan's point
                                                      I am successfully
                                                      using sip tls on
                                                      port 443 without
                                                      any issues as of
                                                      yet. It's
                                                      bypassing some
                                                       isp enforced algs
                                                      as well as those
                                                      enforced by local
                                                      routers. :-).
                                                      <div><br>
                                                      </div>
                                                      <div><br>
                                                      </div>
                                                      <div><br>
                                                      </div>
                                                    </div>
                                                    <div
                                                      class="gmail_extra"><br>
                                                      <div
                                                        class="gmail_quote"><span>On
                                                          Thu, May 5,
                                                          2016 at 3:35
                                                          PM, Nabeel <span
                                                          dir="ltr">&lt;<a
moz-do-not-send="true" href="mailto:nabeelshikder@gmail.com"
                                                          target="_blank"><a class="moz-txt-link-abbreviated" href="mailto:nabeelshikder@gmail.com">nabeelshikder@gmail.com</a></a>&gt;</span>
                                                          wrote:<br>
                                                        </span>
                                                        <blockquote
                                                          class="gmail_quote"
                                                          style="margin:0
                                                          0 0
                                                          .8ex;border-left:1px
                                                          #ccc
                                                          solid;padding-left:1ex"><span>
                                                          <div dir="ltr">
                                                          <div
                                                          class="gmail_extra"><br>
                                                          </div>
                                                          <div
                                                          class="gmail_extra">Please
                                                          check the
                                                          following SIP
                                                          trace taken
                                                          within a WiFi
                                                          network. The
                                                          call fails to
                                                          connect
                                                          despite the
                                                          INVITE request
                                                          and using a
                                                          non-standard
                                                          port. Could
                                                          this be caused
                                                          by SIP ALG, or
                                                          some unopened
                                                          RTP port on
                                                          the router?</div>
                                                          <div
                                                          class="gmail_extra"><br>
                                                          </div>
                                                          <div
                                                          class="gmail_extra"><a
moz-do-not-send="true" href="http://pastebin.com/raw/C4iymTbh"
                                                          target="_blank"><a class="moz-txt-link-freetext" href="http://pastebin.com/raw/C4iymTbh">http://pastebin.com/raw/C4iymTbh</a></a><br>
                                                          </div>
                                                          </div>
                                                          <br>
                                                          </span><span>_______________________________________________<br>
                                                          Users mailing
                                                          list<br>
                                                          <a
                                                          moz-do-not-send="true"
href="mailto:Users@lists.opensips.org" target="_blank"><a class="moz-txt-link-abbreviated" href="mailto:Users@lists.opensips.org">Users@lists.opensips.org</a></a><br>
                                                          <a
                                                          moz-do-not-send="true"
href="http://lists.opensips.org/cgi-bin/mailman/listinfo/users"
                                                          rel="noreferrer"
target="_blank"><a 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></a><br>
                                                          <br>
                                                          </span></blockquote>
                                                      </div>
                                                      <br>
                                                    </div>
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                                                </div>
                                                <br>
                                              </div>
                                            </div>
                                          </div>
                                          <br>
_______________________________________________<br>
                                          Users mailing list<br>
                                          <a moz-do-not-send="true"
                                            href="mailto:Users@lists.opensips.org"
                                            target="_blank">Users@lists.opensips.org</a><br>
                                          <a moz-do-not-send="true"
                                            href="http://lists.opensips.org/cgi-bin/mailman/listinfo/users"
                                            rel="noreferrer"
                                            target="_blank">http://lists.opensips.org/cgi-bin/mailman/listinfo/users</a><br>
                                          <br>
                                        </blockquote>
                                      </div>
                                      <br>
                                    </div>
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                                </div>
                                <br>
_______________________________________________<br>
                                Users mailing list<br>
                                <a moz-do-not-send="true"
                                  href="mailto:Users@lists.opensips.org"
                                  target="_blank">Users@lists.opensips.org</a><br>
                                <a moz-do-not-send="true"
                                  href="http://lists.opensips.org/cgi-bin/mailman/listinfo/users"
                                  rel="noreferrer" target="_blank">http://lists.opensips.org/cgi-bin/mailman/listinfo/users</a><br>
                                <br>
                              </blockquote>
                            </div>
                            <br>
                          </div>
                        </div>
                      </div>
                      <br>
                      _______________________________________________<br>
                      Users mailing list<br>
                      <a moz-do-not-send="true"
                        href="mailto:Users@lists.opensips.org"
                        target="_blank">Users@lists.opensips.org</a><br>
                      <a moz-do-not-send="true"
                        href="http://lists.opensips.org/cgi-bin/mailman/listinfo/users"
                        rel="noreferrer" target="_blank">http://lists.opensips.org/cgi-bin/mailman/listinfo/users</a><br>
                      <br>
                    </blockquote>
                  </div>
                  <br>
                </div>
              </div>
            </div>
            <br>
            _______________________________________________<br>
            Users mailing list<br>
            <a moz-do-not-send="true"
              href="mailto:Users@lists.opensips.org">Users@lists.opensips.org</a><br>
            <a moz-do-not-send="true"
              href="http://lists.opensips.org/cgi-bin/mailman/listinfo/users"
              rel="noreferrer" target="_blank">http://lists.opensips.org/cgi-bin/mailman/listinfo/users</a><br>
            <br>
          </blockquote>
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      <pre wrap="">_______________________________________________
Users mailing list
<a class="moz-txt-link-abbreviated" href="mailto:Users@lists.opensips.org">Users@lists.opensips.org</a>
<a 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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