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    <font face="monospace">Hi Callum,<br>
      <br>
      Have you tried a quick hack like:<br>
      <br>
      <br>
      route[send_request]<br>
      {<br>
          t_new_request();<br>
      }<br>
      <br>
      event_route[</font><font face="monospace">E_UL_CONTACT_DELETE]<br>
      {<br>
          route(send_request);<br>
      }<br>
      <br>
      <br>
      Best regards,<br>
    </font>
    <pre class="moz-signature" cols="72">Bogdan-Andrei Iancu

OpenSIPS Founder and Developer
  <a class="moz-txt-link-freetext" href="https://www.opensips-solutions.com">https://www.opensips-solutions.com</a>
OpenSIPS eBootcamp 23rd May - 3rd June 2022
  <a class="moz-txt-link-freetext" href="https://opensips.org/training/OpenSIPS_eBootcamp_2022/">https://opensips.org/training/OpenSIPS_eBootcamp_2022/</a></pre>
    <div class="moz-cite-prefix">On 3/3/22 7:12 PM, Callum Guy wrote:<br>
    </div>
    <blockquote type="cite"
cite="mid:CAFjCFzkLjP76C00Eao-F3TokcsQMP49Zm10LwK5sMdp9LcBDoA@mail.gmail.com">
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      <div dir="ltr">Hi All,<br>
        <div><br>
        </div>
        <div>I have configured my registrar with max_contacts 1,
          allowing subsequent registrations from that contact to
          overwrite.</div>
        <div><br>
        </div>
        <div>I am looking to intercept the de-registration and send a
          message to the losing contact. Ideally I would use the
          existing SIP connection to send it before termination, the
          client devices are softphones under my control, but I suppose
          the TCP connection to the previous device may have been
          severed by the time the event is raised (I can test this when
          I get there but advice is always welcome).</div>
        <div><br>
        </div>
        <div>Event capture is straightforward using E_UL_CONTACT_DELETE
          however I am wondering if there is any way to generate SIP
          towards the leaving contact at this point? t_new_request() is
          not available in event_route and I wanted to reach out to the
          community for ideas before building an external system to do
          this (i.e. rest_post to a simple HTTP client). </div>
        <div><br>
        </div>
        <div>Is there a neat way to do this within the config script or
          am I already on the best-fit path here?</div>
        <div><br>
        </div>
        <div>Many thanks,</div>
        <div><br>
        </div>
        <div>Callum</div>
        <div><br>
        </div>
      </div>
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      <pre class="moz-quote-pre" wrap="">_______________________________________________
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</pre>
    </blockquote>
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