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    <div class="moz-cite-prefix">That's what I think is causing it,
      although it seems oddly inconsistent.<br>
      I'll search that term to find out more - thanks.<br>
    </div>
    <blockquote
cite="mid:CAFiqYukfda4FaNALhbroDFFerENPYH5oobaRZC8LaWbYgpdDXQ@mail.gmail.com"
      type="cite">
      <div dir="ltr">
        <blockquote class="gmail_quote" style="margin:0px 0px 0px
0.8ex;border-left-width:1px;border-left-color:rgb(204,204,204);border-left-style:solid;padding-left:1ex"><span
            style="font-family:arial,sans-serif;font-size:13px">Without
            this scheme, we are getting mysterious cases of phones not
            ringing when the ISP is having a bad hair day.<br>
          </span><span
            style="font-family:arial,sans-serif;font-size:13px">This
            doesn't exactly fix the problem, but it does enable us to
            alert the user who can then take appropriate measures.</span></blockquote>
        <div><br>
        </div>
        <div>NAT mapping timeouts? </div>
      </div>
      <div class="gmail_extra"><br>
        <br>
        <div class="gmail_quote">On 6 June 2014 16:50, Alex Lake <span
            dir="ltr">&lt;<a moz-do-not-send="true"
              href="mailto:alex@digitalmail.com" target="_blank">alex@digitalmail.com</a>&gt;</span>
          wrote:<br>
          <blockquote class="gmail_quote" style="margin:0 0 0
            .8ex;border-left:1px #ccc solid;padding-left:1ex">
            <div text="#000000" bgcolor="#FFFFFF">
              <div>We need to know when the phones have gone AWOL.<br>
                <br>
                Without this scheme, we are getting mysterious cases of
                phones not ringing when the ISP is having a bad hair
                day.<br>
                This doesn't exactly fix the problem, but it does enable
                us to alert the user who can then take appropriate
                measures.<br>
                <br>
                I suppose if it was just a temporary glitch, we've just
                made it a permanent one....<br>
                <br>
                Mmm.<br>
                <br>
                Given that some phones seem to be far more susceptible
                to this than others, there could be a babies with
                bathwater issue. Might have to rethink the strategy
                here, but the most important thing is to look out for
                failed OPTIONS responses.<br>
                <br>
              </div>
              <div>
                <div class="h5">
                  <blockquote type="cite">
                    <p>Why does that help...?</p>
                    <p>Careful with unregister-on-options-fail  any
                      glitch I'm the internet and you'll lose the
                      registrations.<br>
                      -Avi</p>
                    <div class="gmail_quote">On Jun 6, 2014 6:08 PM,
                      "Alex Lake" &lt;<a moz-do-not-send="true"
                        href="mailto:alex@digitalmail.com"
                        target="_blank">alex@digitalmail.com</a>&gt;
                      wrote:<br type="attribution">
                      <blockquote class="gmail_quote" style="margin:0 0
                        0 .8ex;border-left:1px #ccc
                        solid;padding-left:1ex"> Ah! Dodgy Google....<br>
                        <br>
                        Of course it should be<br>
                        <br>
                              &lt;param name="all-reg-options-ping"
                        value="true"/&gt;<br>
                        <br>
                        <br>
                        &gt; Struggling to understand how this value
                        relates to how often OPTIONS<br>
                        &gt; packets are sent....<br>
                        &gt;<br>
                        &gt; I've got this in my internal.xml:<br>
                        &gt;<br>
                        &gt;<br>
                        &gt;       &lt;param name="all-options-ping"
                        value="true"/&gt;<br>
                        &gt;       &lt;param name="nat-options-ping"
                        value="true"/&gt;<br>
                        &gt;       &lt;param
                        name="unregister-on-options-fail"
                        value="true"/&gt;<br>
                        &gt;       &lt;param
                        name="registration-thread-frequency"
                        value="5"/&gt;<br>
                        &gt;<br>
                        &gt;<br>
                        &gt; But I don't see any OPTIONS messages going
                        to my registered SIP handset:<br>
                        &gt;<br>
                        &gt; freeswitch@internal&gt; show registrations<br>
                        &gt;
reg_user,realm,token,url,expires,network_ip,network_port,network_proto,hostname,metadata<br>
                        &gt; 1129301,176.9.31.72,<a
                          moz-do-not-send="true"
                          href="mailto:fbbb6ffb2e8e3c9d@192.168.1.203"
                          target="_blank">fbbb6ffb2e8e3c9d@192.168.1.203</a>,<a
                          moz-do-not-send="true"
href="mailto:sofia/internal/sip:1129301@84.92.90.149:33888;transport=udp,1402068621,84.92.90.149,33888,udp"
                          target="_blank">sofia/internal/sip:1129301@84.92.90.149:33888;transport=udp,1402068621,84.92.90.149,33888,udp</a>,<a
                          moz-do-not-send="true"
                          href="http://hzhmay14a.dmclub.net"
                          target="_blank">hzhmay14a.dmclub.net</a>,<br>
                        &gt;<br>
                        &gt; And i've done this:<br>
                        &gt;<br>
                        &gt; sofia profile internal siptrace on<br>
                        &gt;<br>
                        &gt; Feel I'm banging my head against a brick
                        wall on this!<br>
                        &gt;<br>
                        &gt;
_________________________________________________________________________<br>
                        &gt; Professional FreeSWITCH Consulting
                        Services:<br>
                        &gt; <a moz-do-not-send="true"
                          href="mailto:consulting@freeswitch.org"
                          target="_blank">consulting@freeswitch.org</a><br>
                        &gt; <a moz-do-not-send="true"
                          href="http://www.freeswitchsolutions.com"
                          target="_blank">http://www.freeswitchsolutions.com</a><br>
                        &gt;<br>
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                          href="http://wiki.freeswitch.org"
                          target="_blank">http://wiki.freeswitch.org</a><br>
                        &gt; <a moz-do-not-send="true"
                          href="http://www.cluecon.com" target="_blank">http://www.cluecon.com</a><br>
                        &gt;<br>
                        &gt; FreeSWITCH-users mailing list<br>
                        &gt; <a moz-do-not-send="true"
                          href="mailto:FreeSWITCH-users@lists.freeswitch.org"
                          target="_blank">FreeSWITCH-users@lists.freeswitch.org</a><br>
                        &gt; <a moz-do-not-send="true"
                          href="http://lists.freeswitch.org/mailman/listinfo/freeswitch-users"
                          target="_blank">http://lists.freeswitch.org/mailman/listinfo/freeswitch-users</a><br>
                        &gt; UNSUBSCRIBE:<a moz-do-not-send="true"
                          href="http://lists.freeswitch.org/mailman/options/freeswitch-users"
                          target="_blank">http://lists.freeswitch.org/mailman/options/freeswitch-users</a><br>
                        &gt; <a moz-do-not-send="true"
                          href="http://www.freeswitch.org"
                          target="_blank">http://www.freeswitch.org</a><br>
                        &gt;<br>
                        &gt;<br>
                        &gt; -----<br>
                        &gt; No virus found in this message.<br>
                        &gt; Checked by AVG - <a moz-do-not-send="true"
                          href="http://www.avg.com" target="_blank">www.avg.com</a><br>
                        &gt; Version: 2014.0.4570 / Virus Database:
                        3955/7630 - Release Date: 06/06/14<br>
                        &gt;<br>
                        &gt;<br>
                        <br>
                        <br>
_________________________________________________________________________<br>
                        Professional FreeSWITCH Consulting Services:<br>
                        <a moz-do-not-send="true"
                          href="mailto:consulting@freeswitch.org"
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                          target="_blank">http://www.freeswitchsolutions.com</a><br>
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                        Official FreeSWITCH Sites<br>
                        <a moz-do-not-send="true"
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                          target="_blank">http://www.freeswitch.org</a><br>
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                          href="mailto:FreeSWITCH-users@lists.freeswitch.org"
                          target="_blank">FreeSWITCH-users@lists.freeswitch.org</a><br>
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                          href="http://lists.freeswitch.org/mailman/listinfo/freeswitch-users"
                          target="_blank">http://lists.freeswitch.org/mailman/listinfo/freeswitch-users</a><br>
                        UNSUBSCRIBE:<a moz-do-not-send="true"
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                          target="_blank">http://lists.freeswitch.org/mailman/options/freeswitch-users</a><br>
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                      </blockquote>
                    </div>
                    <br>
                    <fieldset></fieldset>
                    <br>
                    <pre>_________________________________________________________________________
Professional FreeSWITCH Consulting Services:
<a moz-do-not-send="true" href="mailto:consulting@freeswitch.org" target="_blank">consulting@freeswitch.org</a>
<a moz-do-not-send="true" href="http://www.freeswitchsolutions.com" target="_blank">http://www.freeswitchsolutions.com</a>

FreeSWITCH-powered IP PBX: The CudaTel Communication Server
<a moz-do-not-send="true" href="http://www.cudatel.com" target="_blank">http://www.cudatel.com</a>

Official FreeSWITCH Sites
<a moz-do-not-send="true" href="http://www.freeswitch.org" target="_blank">http://www.freeswitch.org</a>
<a moz-do-not-send="true" href="http://wiki.freeswitch.org" target="_blank">http://wiki.freeswitch.org</a>
<a moz-do-not-send="true" href="http://www.cluecon.com" target="_blank">http://www.cluecon.com</a>

FreeSWITCH-users mailing list
<a moz-do-not-send="true" href="mailto:FreeSWITCH-users@lists.freeswitch.org" target="_blank">FreeSWITCH-users@lists.freeswitch.org</a>
<a moz-do-not-send="true" href="http://lists.freeswitch.org/mailman/listinfo/freeswitch-users" target="_blank">http://lists.freeswitch.org/mailman/listinfo/freeswitch-users</a>
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<a moz-do-not-send="true" href="http://www.freeswitch.org" target="_blank">http://www.freeswitch.org</a>
</pre>
                    <br>
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                    <br>
                    <p color="#000000" align="left">No virus found in
                      this message.<br>
                      Checked by AVG - <a moz-do-not-send="true"
                        href="http://www.avg.com" target="_blank">www.avg.com</a><br>
                      Version: 2014.0.4570 / Virus Database: 3955/7630 -
                      Release Date: 06/06/14</p>
                  </blockquote>
                  <br>
                </div>
              </div>
            </div>
            <br>
_________________________________________________________________________<br>
            Professional FreeSWITCH Consulting Services:<br>
            <a moz-do-not-send="true"
              href="mailto:consulting@freeswitch.org">consulting@freeswitch.org</a><br>
            <a moz-do-not-send="true"
              href="http://www.freeswitchsolutions.com" target="_blank">http://www.freeswitchsolutions.com</a><br>
            <br>
            FreeSWITCH-powered IP PBX: The CudaTel Communication Server<br>
            <a moz-do-not-send="true" href="http://www.cudatel.com"
              target="_blank">http://www.cudatel.com</a><br>
            <br>
            Official FreeSWITCH Sites<br>
            <a moz-do-not-send="true" href="http://www.freeswitch.org"
              target="_blank">http://www.freeswitch.org</a><br>
            <a moz-do-not-send="true" href="http://wiki.freeswitch.org"
              target="_blank">http://wiki.freeswitch.org</a><br>
            <a moz-do-not-send="true" href="http://www.cluecon.com"
              target="_blank">http://www.cluecon.com</a><br>
            <br>
            FreeSWITCH-users mailing list<br>
            <a moz-do-not-send="true"
              href="mailto:FreeSWITCH-users@lists.freeswitch.org">FreeSWITCH-users@lists.freeswitch.org</a><br>
            <a moz-do-not-send="true"
              href="http://lists.freeswitch.org/mailman/listinfo/freeswitch-users"
              target="_blank">http://lists.freeswitch.org/mailman/listinfo/freeswitch-users</a><br>
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            <a moz-do-not-send="true" href="http://www.freeswitch.org"
              target="_blank">http://www.freeswitch.org</a><br>
            <br>
          </blockquote>
        </div>
        <br>
      </div>
      <br>
      <fieldset class="mimeAttachmentHeader"></fieldset>
      <br>
      <pre wrap="">_________________________________________________________________________
Professional FreeSWITCH Consulting Services:
<a class="moz-txt-link-abbreviated" href="mailto:consulting@freeswitch.org">consulting@freeswitch.org</a>
<a class="moz-txt-link-freetext" href="http://www.freeswitchsolutions.com">http://www.freeswitchsolutions.com</a>

FreeSWITCH-powered IP PBX: The CudaTel Communication Server
<a class="moz-txt-link-freetext" href="http://www.cudatel.com">http://www.cudatel.com</a>

Official FreeSWITCH Sites
<a class="moz-txt-link-freetext" href="http://www.freeswitch.org">http://www.freeswitch.org</a>
<a class="moz-txt-link-freetext" href="http://wiki.freeswitch.org">http://wiki.freeswitch.org</a>
<a class="moz-txt-link-freetext" href="http://www.cluecon.com">http://www.cluecon.com</a>

FreeSWITCH-users mailing list
<a class="moz-txt-link-abbreviated" href="mailto:FreeSWITCH-users@lists.freeswitch.org">FreeSWITCH-users@lists.freeswitch.org</a>
<a class="moz-txt-link-freetext" href="http://lists.freeswitch.org/mailman/listinfo/freeswitch-users">http://lists.freeswitch.org/mailman/listinfo/freeswitch-users</a>
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<a class="moz-txt-link-freetext" href="http://www.freeswitch.org">http://www.freeswitch.org</a>
</pre>
      <br>
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      <br>
      <p class="" avgcert""="" color="#000000" align="left">No virus
        found in this message.<br>
        Checked by AVG - <a moz-do-not-send="true"
          href="http://www.avg.com">www.avg.com</a><br>
        Version: 2014.0.4570 / Virus Database: 3955/7646 - Release Date:
        06/09/14</p>
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