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    <font face="monospace">Well, good question. The mechanism will
      perfectly work between the mid_registrar and the end-devices. But
      if the mid_registrar detects and remove a zombie contact, it may
      have to preform a de-registration (depending on the mid registrar
      mode) with the main registrar. That means an REGISTER generated by
      mid-registrar OpenSIPS - and if you do digest auth on the main
      registrar, this will fail :(<br>
      <br>
      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>
  <a class="moz-txt-link-freetext" href="https://www.siphub.com">https://www.siphub.com</a></pre>
    <div class="moz-cite-prefix">On 03.10.2024 16:20, M S wrote:<br>
    </div>
    <blockquote type="cite"
cite="mid:CAEZrhoOM2dBYKAWpWQJNh2t=MH3-mSiGPdj8eyiFTnEvvnjeZA@mail.gmail.com">
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      <div dir="ltr">Hi Bogdan,
        <div>Thank you for your post and explanation, does this work the
          same with mid_registrar too, i.e. if a contact is marked with
          RTO is it discarded from mid_registrar location if it is
          zombie?</div>
        <div><br>
        </div>
        <div>Thank you!</div>
      </div>
      <br>
      <div class="gmail_quote">
        <div dir="ltr" class="gmail_attr">On Thu, Oct 3, 2024 at 1:04 PM
          Bogdan-Andrei Iancu <<a href="mailto:bogdan@opensips.org"
            moz-do-not-send="true" class="moz-txt-link-freetext">bogdan@opensips.org</a>>
          wrote:<br>
        </div>
        <blockquote class="gmail_quote"
style="margin:0px 0px 0px 0.8ex;border-left:1px solid rgb(204,204,204);padding-left:1ex"><br>
          Here is a short post on how to improve your OpenSIPS registrar
          <br>
          performance and also your user's experience in the same
          time.... by <br>
          fighting the zombies.... the zombie registrations 🙂<br>
          <br>
          <a
href="https://blog.opensips.org/2024/10/03/how-to-eliminate-zombie-registrations-in-opensips/"
            rel="noreferrer" target="_blank" moz-do-not-send="true"
            class="moz-txt-link-freetext">https://blog.opensips.org/2024/10/03/how-to-eliminate-zombie-registrations-in-opensips/</a><br>
          <br>
          Enjoy,<br>
          <br>
          -- <br>
          Bogdan-Andrei Iancu<br>
          <br>
          OpenSIPS Founder and Developer<br>
             <a href="https://www.opensips-solutions.com"
            rel="noreferrer" target="_blank" moz-do-not-send="true"
            class="moz-txt-link-freetext">https://www.opensips-solutions.com</a><br>
             <a href="https://www.siphub.com" rel="noreferrer"
            target="_blank" moz-do-not-send="true"
            class="moz-txt-link-freetext">https://www.siphub.com</a><br>
          <br>
          <br>
          _______________________________________________<br>
          Users mailing list<br>
          <a href="mailto:Users@lists.opensips.org" target="_blank"
            moz-do-not-send="true" class="moz-txt-link-freetext">Users@lists.opensips.org</a><br>
          <a
href="http://lists.opensips.org/cgi-bin/mailman/listinfo/users"
            rel="noreferrer" target="_blank" moz-do-not-send="true"
            class="moz-txt-link-freetext">http://lists.opensips.org/cgi-bin/mailman/listinfo/users</a><br>
        </blockquote>
      </div>
      <br>
      <fieldset class="moz-mime-attachment-header"></fieldset>
      <pre class="moz-quote-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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