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    I found the reason, my SFLphone is old.<br>
    Don't answer on NOTIFY message.<br>
    <br>
    Thank you!<br>
    <br>
    <br>
    <div class="moz-cite-prefix">On 06/03/2015 01:50 PM, Steven Ayre
      wrote:<br>
    </div>
    <blockquote
cite="mid:CAFiqYu=7f=GBx7Pr4OOS-54rD-QMr1FgeOZo97kQxNhn4fUyFQ@mail.gmail.com"
      type="cite">
      <div dir="ltr">It would need more context. Are they all exactly
        identical? Are you ACKing the notify (ie are they
        retransmissions)?</div>
      <div class="gmail_extra"><br>
        <div class="gmail_quote">On 3 June 2015 at 09:15, Dmitry
          Mordovin <span dir="ltr">&lt;<a moz-do-not-send="true"
              href="mailto:dm@dwide.com" target="_blank">dm@dwide.com</a>&gt;</span>
          wrote:<br>
          <blockquote class="gmail_quote" style="margin:0 0 0
            .8ex;border-left:1px #ccc solid;padding-left:1ex">Hello,<br>
            <br>
            I don't understand why FS send this notify every 4
            seconds...<br>
            <br>
            Please help me to understanding..<br>
            <br>
            Console:<br>
            <br>
            send 892 bytes to udp/[X.X.X.X]:7513 at 12:02:43.219129:<br>
------------------------------------------------------------------------<br>
                NOTIFY <a class="moz-txt-link-abbreviated" href="mailto:sip:00294539100@X.X.X.X:7513">sip:00294539100@X.X.X.X:7513</a> SIP/2.0<br>
                Via: SIP/2.0/UDP
            Y.Y.Y.Y;rport;branch=z9hG4bKFK33trF1tDmSr<br>
                Max-Forwards: 70<br>
                From: <a class="moz-txt-link-rfc2396E" href="mailto:sip:00294539100@Y.Y.Y.Y">&lt;sip:00294539100@Y.Y.Y.Y&gt;</a>;tag=3HH1U3FS0360e<br>
                To: <a class="moz-txt-link-rfc2396E" href="mailto:sip:00294539100@Y.Y.Y.Y">&lt;sip:00294539100@Y.Y.Y.Y&gt;</a><br>
                Call-ID: b0e25031-8469-1233-09ae-000255904fb8<br>
                CSeq: 76323204 NOTIFY<br>
                Contact: <a class="moz-txt-link-rfc2396E" href="mailto:sip:mod_sofia@Y.Y.Y.Y:5060">&lt;sip:mod_sofia@Y.Y.Y.Y:5060&gt;</a><br>
                User-Agent: FS<br>
                Allow: INVITE, ACK, BYE, CANCEL, OPTIONS, MESSAGE, INFO,
            UPDATE,<br>
            REGISTER, REFER, NOTIFY, PUBLISH, SUBSCRIBE<br>
                Supported: timer, path, replaces<br>
                Event: message-summary<br>
                Allow-Events: talk, hold, conference, presence,
            as-feature-event,<br>
            dialog, line-seize, call-info, sla,
            include-session-description,<br>
            presence.winfo, message-summary, refer<br>
                Subscription-State: terminated;reason=noresource<br>
                Content-Type: application/simple-message-summary<br>
                Content-Length: 73<br>
            <br>
                Messages-Waiting: no<br>
                Message-Account: <a class="moz-txt-link-abbreviated" href="mailto:sip:00294539100@Y.Y.Y.Y">sip:00294539100@Y.Y.Y.Y</a><br>
            <br>
------------------------------------------------------------------------<br>
            <br>
            <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>
            Official FreeSWITCH Sites<br>
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              target="_blank">http://www.freeswitch.org</a><br>
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              href="http://confluence.freeswitch.org" target="_blank">http://confluence.freeswitch.org</a><br>
            <a moz-do-not-send="true" href="http://www.cluecon.com"
              target="_blank">http://www.cluecon.com</a><br>
            <br>
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              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>
            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>
            <a moz-do-not-send="true" href="http://www.freeswitch.org"
              target="_blank">http://www.freeswitch.org</a><br>
          </blockquote>
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      <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>

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://confluence.freeswitch.org">http://confluence.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>
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