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    Look at the sip traffic flowing though server (e.g., with ngrep on
    port 5060) and see where the packets are routed.<br>
    <br>
    Cheers,<br>
    Daniel<br>
    <br>
    <div class="moz-cite-prefix">On 01/12/14 11:30, Rizwan Khan wrote:<br>
    </div>
    <blockquote
cite="mid:CALByW_Eobh21oi+DQ34-7p0PRkk5Anm7DfPxTstmC1RjPnYJwA@mail.gmail.com"
      type="cite">
      <div dir="ltr">I am not sure if its the issue on my client end as
        CSIPSImple is not sendin the PRACK that is expected by the
        server or the rtp ports are not opened.
        <div><br>
        </div>
        <div>I guess the ports are opened as I can hear two way voice. </div>
        <div><br>
        </div>
        <div>But the following issues remain:</div>
        <div><br>
        </div>
        <div>1. I cannot receive a call on the SIP number</div>
        <div>2. I dont get an indication on the caller (thru CSIPSimple)
          that a call has started as in it doesnt start the call timer</div>
        <div>3. The call disconnects with an error after some time
          ..INternal Server Error.</div>
        <div><br>
        </div>
        <div>Regards,<br>
          <div class="gmail_extra"><br clear="all">
            <div>
              <div class="gmail_signature">Rizwan Khan<br>
                <br>
                <br>
              </div>
            </div>
            <br>
            <div class="gmail_quote">On Mon, Dec 1, 2014 at 11:00 AM,
              Rizwan Khan <span dir="ltr"><<a moz-do-not-send="true"
                  href="mailto:rizkhan@gmail.com" target="_blank">rizkhan@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 dir="ltr">Thanks for the help guys.
                  <div><br>
                  </div>
                  <div>I used a stateless proxy and was able to
                    register. Now I am able to make calls as well but
                    there is an issue.</div>
                  <div><br>
                  </div>
                  <div>I receive multiple ringing but not receiving 200
                    ok after that. I keep on receiving the ringing
                    messages. Although the call gets connected and I
                    hear two way voice as well.</div>
                  <div><br>
                  </div>
                  <div>Also I am call through the sip number, but its
                    not receiving any calls.</div>
                  <div><br>
                  </div>
                  <div>Any ideas?</div>
                </div>
                <div class="gmail_extra"><span class="HOEnZb"><font
                      color="#888888"><br clear="all">
                      <div>
                        <div>Rizwan Khan<br>
                          <br>
                          <br>
                        </div>
                      </div>
                    </font></span>
                  <div>
                    <div class="h5">
                      <br>
                      <div class="gmail_quote">On Thu, Nov 27, 2014 at
                        9:04 PM, Daniel Tryba <span dir="ltr"><<a
                            moz-do-not-send="true"
                            href="mailto:daniel@pocos.nl"
                            target="_blank">daniel@pocos.nl</a>></span>
                        wrote:<br>
                        <blockquote class="gmail_quote" style="margin:0
                          0 0 .8ex;border-left:1px #ccc
                          solid;padding-left:1ex"><span>On Thursday 27
                            November 2014 08:29:51 Rizwan Khan wrote:<br>
                            > We want to use Kamailio as the
                            pass-thru proxy in front of the SBC just to<br>
                            > receive the request on a random port,
                            and then forward the request to the<br>
                            > SBC internally being on the same
                            private network.<br>
                            ><br>
                            > What would be the best way to do it?<br>
                            <br>
                          </span>If it is the best is up to the experts,
                          but a way to do is to check wheter the<br>
                          source is the SBC or not. If the message is
                          from the SBC just handle it<br>
                          statefully (t_relay), if it isn't from the SBC
                          set the requested domain to the<br>
                          ipaddr of the SBC (10.1.2.3) and process
                          stateful. You could use the received<br>
                          port instead if external clients only
                          communicate on the special port<br>
                          ($Rp!=6334)<br>
                          <br>
                          kamailio.cfg:<br>
                          <br>
                          #...<br>
                          port=5060<br>
                          port=6334<br>
                          #...<br>
                          <br>
                          request_route {<br>
                          #...<br>
                          <br>
                             if($si!="10.1.2.3")<br>
                             {<br>
                                $rd="10.1.2.3";<br>
                             }<br>
                          <br>
                             route(RELAY);<br>
                          <div>
                            <div>}<br>
                              <br>
                              <br>
                              <br>
_______________________________________________<br>
                              SIP Express Router (SER) and Kamailio
                              (OpenSER) - sr-users mailing list<br>
                              <a moz-do-not-send="true"
                                href="mailto:sr-users@lists.sip-router.org"
                                target="_blank">sr-users@lists.sip-router.org</a><br>
                              <a moz-do-not-send="true"
                                href="http://lists.sip-router.org/cgi-bin/mailman/listinfo/sr-users"
                                target="_blank">http://lists.sip-router.org/cgi-bin/mailman/listinfo/sr-users</a><br>
                            </div>
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                        </blockquote>
                      </div>
                      <br>
                    </div>
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              </blockquote>
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      <pre wrap="">_______________________________________________
SIP Express Router (SER) and Kamailio (OpenSER) - sr-users mailing list
<a class="moz-txt-link-abbreviated" href="mailto:sr-users@lists.sip-router.org">sr-users@lists.sip-router.org</a>
<a class="moz-txt-link-freetext" href="http://lists.sip-router.org/cgi-bin/mailman/listinfo/sr-users">http://lists.sip-router.org/cgi-bin/mailman/listinfo/sr-users</a>
</pre>
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    <br>
    <pre class="moz-signature" cols="72">-- 
Daniel-Constantin Mierla
<a class="moz-txt-link-freetext" href="http://twitter.com/#!/miconda">http://twitter.com/#!/miconda</a> - <a class="moz-txt-link-freetext" href="http://www.linkedin.com/in/miconda">http://www.linkedin.com/in/miconda</a></pre>
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