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    Hello,<br>
    <br>
    yes, conversion in kamailio is the same. The problem seems in
    twinkle, returning a negative reply when discovering a transport
    layer not supported by itself. However, the next hop to it is using
    UDP, so it should not be worried about what other hops are using
    between them.<br>
    <br>
    Cheers,<br>
    Daniel<br>
    <br>
    <div class="moz-cite-prefix">On 3/16/13 3:51 AM, Kelvin Chua wrote:<br>
    </div>
    <blockquote
cite="mid:CAMF97-cMWkinLXvDh=6wGKSiZH-sfnZS6R7orA413oGh6r6U2Q@mail.gmail.com"
      type="cite">
      <div dir="ltr">
        <div>Hi guys,</div>
        <div><br>
        </div>
        <div>i have yet to finish my readings on the websocket standards
          but just wanted to fire away with this question.&nbsp;</div>
        <div><br>
        </div>
        <div>is the behavior of protocol conversions between UDP and TCP
          the same as if you include websockets?</div>
        <div><br>
        </div>
        <div>i have this twinkle issue (an old SIP stack)</div>
        <div><br>
        </div>
        <div>
          <div>Received from: udp:<a moz-do-not-send="true"
              href="http://192.168.122.100:5060" target="_blank">192.168.122.100:5060</a></div>
          <div>INVITE <a moz-do-not-send="true"
              href="mailto:sip%3Akelvin@192.168.122.1" target="_blank">sip:kelvin@192.168.122.1</a>
            SIP/2.0</div>
          <div>Record-Route: <a class="moz-txt-link-rfc2396E" href="sip:192.168.122.100;r2=on;lr=on">&lt;sip:192.168.122.100;r2=on;lr=on&gt;</a></div>
          <div>Record-Route:
            <a class="moz-txt-link-rfc2396E" href="sip:192.168.122.100:8080;transport=ws;r2=on;lr=on">&lt;sip:192.168.122.100:8080;transport=ws;r2=on;lr=on&gt;</a></div>
          <div>Via: SIP/2.0/UDP
            192.168.122.100;branch=z9hG4bKed9e.8b1b2fa61a90a9031e17b393657df31b.0</div>
          <div>Via: SIP/2.0/WS
z173czhz21tk.invalid;rport=54765;received=192.168.122.1;branch=z9hG4bK3818745</div>
          <div>Max-Forwards: 16</div>
          <div>To: <a moz-do-not-send="true"
              href="mailto:sip%3Akelvin@192.168.122.100" target="_blank">sip:kelvin@192.168.122.100</a></div>
          <div>From: <a moz-do-not-send="true"
              href="mailto:sip%3Akelvin2@192.168.122.100"
              target="_blank">sip:kelvin2@192.168.122.100</a>;tag=lmf8ofkxwq</div>
          <div>Call-ID: 69hbgnng64at9p07r2j4</div>
          <div>CSeq: 9406 INVITE</div>
          <div>Contact:
<a class="moz-txt-link-rfc2396E" href="sip:kelvin2@z173czhz21tk.invalid;alias=192.168.122.1~54765~5;transport=ws;ob">&lt;sip:kelvin2@z173czhz21tk.invalid;alias=192.168.122.1~54765~5;transport=ws;ob&gt;</a></div>
          <div>Allow: INVITE, ACK, CANCEL, BYE, OPTIONS, MESSAGE,
            SUBSCRIBE</div>
          <div>Content-Type: application/sdp</div>
          <div>Supported: path, outbound, gruu</div>
          <div>User-Agent: JsSIP 0.2.1</div>
          <div>Content-Length: 2103</div>
          <div>
            <br>
          </div>
          <div>v=0</div>
          <div>o=- 3148117784 2 IN IP4 127.0.0.1</div>
          <div>s=-</div>
          <div>t=0 0</div>
          <div>a=group:BUNDLE audio</div>
          <div>m=audio 55736 RTP/SAVPF 103 104 111 0 8 106 105 13 126</div>
          <div>c=IN IP4 192.168.122.1</div>
          <div>a=rtcp:55736 IN IP4 192.168.122.1</div>
          <div>a=candidate:2625852906 1 udp 2113937151</div>
          <div><br>
          </div>
          <div>&lt;cut off&gt;</div>
          <div><br>
          </div>
          <div>---</div>
          <div><br>
          </div>
          <div>+++ 16-3-2013 10:41:25.584732 INFO SIP ::send_sip_udp</div>
          <div>Send to: udp:<a moz-do-not-send="true"
              href="http://192.168.122.100:5060" target="_blank">192.168.122.100:5060</a></div>
          <div>SIP/2.0 100 Trying</div>
          <div>Via: SIP/2.0/UDP
            192.168.122.100;branch=z9hG4bKed9e.8b1b2fa61a90a9031e17b393657df31b.0,SIP/2.0/WS
z173czhz21tk.invalid;received=192.168.122.1;rport=54765;branch=z9hG4bK3818745</div>
          <div>To: &lt;<a moz-do-not-send="true"
              href="mailto:sip%3Akelvin@192.168.122.100" target="_blank">sip:kelvin@192.168.122.100</a>&gt;</div>
          <div>From: &lt;<a moz-do-not-send="true"
              href="mailto:sip%3Akelvin2@192.168.122.100"
              target="_blank">sip:kelvin2@192.168.122.100</a>&gt;;tag=lmf8ofkxwq</div>
          <div>
            Call-ID: 69hbgnng64at9p07r2j4</div>
          <div>CSeq: 9406 INVITE</div>
          <div>Server: Twinkle/1.4.2</div>
          <div>Content-Length: 0</div>
          <div><br>
          </div>
          <div><br>
          </div>
          <div>---</div>
          <div><br>
          </div>
          <div>+++ 16-3-2013 10:41:25.589231 INFO SIP ::send_sip_udp</div>
          <div>Send to: udp:<a moz-do-not-send="true"
              href="http://192.168.122.100:5060" target="_blank">192.168.122.100:5060</a></div>
          <div>SIP/2.0 488 Not Acceptable Here</div>
          <div>Via: SIP/2.0/UDP
            192.168.122.100;branch=z9hG4bKed9e.8b1b2fa61a90a9031e17b393657df31b.0,SIP/2.0/WS
z173czhz21tk.invalid;received=192.168.122.1;rport=54765;branch=z9hG4bK3818745</div>
          <div>To: &lt;<a moz-do-not-send="true"
              href="mailto:sip%3Akelvin@192.168.122.100" target="_blank">sip:kelvin@192.168.122.100</a>&gt;;tag=pxtmo</div>
          <div>From: &lt;<a moz-do-not-send="true"
              href="mailto:sip%3Akelvin2@192.168.122.100"
              target="_blank">sip:kelvin2@192.168.122.100</a>&gt;;tag=lmf8ofkxwq</div>
          <div>Call-ID: 69hbgnng64at9p07r2j4</div>
          <div>CSeq: 9406 INVITE</div>
          <div>Server: Twinkle/1.4.2</div>
          <div>Warning: 302 X340precise "Incompatible transport
            protocol"</div>
          <div>Content-Length: 0</div>
        </div>
        <br clear="all">
        <div>Kelvin Chua</div>
      </div>
      <br>
      <fieldset class="mimeAttachmentHeader"></fieldset>
      <br>
      <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>
    </blockquote>
    <br>
    <pre class="moz-signature" cols="72">-- 
Daniel-Constantin Mierla - <a class="moz-txt-link-freetext" href="http://www.asipto.com">http://www.asipto.com</a>
<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>
Kamailio World Conference, April 16-17, 2013, Berlin
 - <a class="moz-txt-link-freetext" href="http://conference.kamailio.com">http://conference.kamailio.com</a> -</pre>
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