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    <div class="moz-cite-prefix">On 04.02.21 12:59, Denys Pozniak wrote:<br>
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    <blockquote type="cite"
cite="mid:CA+x3Axo=BLmrAnDBj71cGw9_JijWT+i1x2p8DhpF8Q+S7i00mg@mail.gmail.com">
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      <div dir="ltr">> If you need to stop the retransmission, a 100
        trying should be sent instead of 200ok. Can you reconfigure the
        next hop to do that? Or is it out of your control?<br>
        <div>Looks it is difficult to do this as Kamailio Proxy forks
          via append_branch() incoming SIP PUBLISH to all Presence
          Servers.<br>
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    <p><br>
    </p>
    <p>I do not understand what is difficult, to configure the next hop
      application to send 100 trying? Or maybe you can provide a diagram
      of how sip traffic is routed on your case.</p>
    <p><br>
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    <blockquote type="cite"
cite="mid:CA+x3Axo=BLmrAnDBj71cGw9_JijWT+i1x2p8DhpF8Q+S7i00mg@mail.gmail.com">
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        <div>And even if Presence Server answers 200 OK, the Kamailio
          Proxy still sends a repeated SIP PUBLISH there within the fr
          timer.<br>
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    <p><br>
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    <p>This remark is also not clear, is the 200ok handled by Kamailio,
      sent upstream, but then Kamailio still resends the PUBLISH?<br>
      <br>
      Cheers,<br>
      Daniel</p>
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    <blockquote type="cite"
cite="mid:CA+x3Axo=BLmrAnDBj71cGw9_JijWT+i1x2p8DhpF8Q+S7i00mg@mail.gmail.com"><br>
      <div class="gmail_quote">
        <div dir="ltr" class="gmail_attr">чт, 4 февр. 2021 г. в 13:04,
          Daniel-Constantin Mierla <<a
            href="mailto:miconda@gmail.com" moz-do-not-send="true">miconda@gmail.com</a>>:<br>
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          0.8ex;border-left:1px solid rgb(204,204,204);padding-left:1ex">
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            <p>Hello,</p>
            <p>if the 200ok is consumed by tm, it will destroy the
              transaction very soon. I am not sure this is a good path
              to go.<br>
            </p>
            <p>If you need to stop the retransmission, a 100 trying
              should be sent instead of 200ok. Can you reconfigure the
              next hop to do that? Or is it out of your control?</p>
            <p>Cheers,<br>
              Daniel<br>
            </p>
            <div>On 04.02.21 11:47, Denys Pozniak wrote:<br>
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                <div>Hello!</div>
                <div><br>
                </div>
                <div>In the configuration below Kamailio Proxy creates a
                  transaction for the SIP PUBLISH to get info from the
                  HTTP server in async mode.</div>
                <div>But before creating a transaction, a synthetic 200
                  OK is sent, so that I need somehow to drop the real
                  200 OK from the upstream Presence Server.<br>
                </div>
                <div>If drop 200 OK in <b>reply_route</b>, tm module
                  starts to retransmit.<br>
                </div>
                <div>Those it is necessary that the 200 OK be consumed
                  by the tm module, but does not go further.<br>
                </div>
                <div><br>
                </div>
                <div><i>if ( !is_method("PUBLISH") ) {<br>
                  </i></div>
                <div><i>        sl_send_reply("200", "Ok");<br>
                            t_newtran();<br>
                  </i></div>
                <div><i>        $http_req(suspend) = 1;<br>
                             http_async_query("$var(url)", "CALLBACK");<br>
                  </i></div>
                <div><i>}</i></div>
                <div><i><br>
                  </i></div>
                <div><i>route[CALLBACK] {<br>
                  </i></div>
                <div><i>        <some header manipulation></i></div>
                <i>        t_on_reply("PUBLISH_REPLY");<br>
                          route(RELAY);<br>
                          exit;<br>
                </i>
                <div><i>}</i></div>
                <div><i><br>
                  </i></div>
                <div><i>onreply_route[PUBLISH_REPLY] {<br>
                            if ( t_check_status("200") ) {<br>
                                    <b>drop; # Does not work!!!</b><br>
                            }<br>
                    }<br>
                  </i></div>
                <div><br>
                </div>
                <div>Any advice is appreciated</div>
                <div><br>
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                -- <br>
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                  <div dir="ltr"><br>
                    <div>
                      <div>BR,</div>
                      <div>Denys Pozniak<br>
                      </div>
                      <div><br>
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              <pre>_______________________________________________
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</pre>
            </blockquote>
            <pre cols="72">-- 
Daniel-Constantin Mierla -- <a href="http://www.asipto.com" target="_blank" moz-do-not-send="true">www.asipto.com</a>
<a href="http://www.twitter.com/miconda" target="_blank" moz-do-not-send="true">www.twitter.com/miconda</a> -- <a href="http://www.linkedin.com/in/miconda" target="_blank" moz-do-not-send="true">www.linkedin.com/in/miconda</a>
Funding: <a href="https://www.paypal.me/dcmierla" target="_blank" moz-do-not-send="true">https://www.paypal.me/dcmierla</a></pre>
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      -- <br>
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        <div dir="ltr"><br>
          <div>
            <div>BR,</div>
            <div>Denys Pozniak<br>
            </div>
            <div><br>
            </div>
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    <pre class="moz-signature" cols="72">-- 
Daniel-Constantin Mierla -- <a class="moz-txt-link-abbreviated" href="http://www.asipto.com">www.asipto.com</a>
<a class="moz-txt-link-abbreviated" href="http://www.twitter.com/miconda">www.twitter.com/miconda</a> -- <a class="moz-txt-link-abbreviated" href="http://www.linkedin.com/in/miconda">www.linkedin.com/in/miconda</a>
Funding: <a class="moz-txt-link-freetext" href="https://www.paypal.me/dcmierla">https://www.paypal.me/dcmierla</a></pre>
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