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    <p>Thank you, Matt.</p>
    <p>Is it possible that Asterisk (by mistake or misconfiguration or
      something else) stops sending REGISTER requests or is it possible
      for the ISP server to send some kind of SIP-message to stop
      Asterisk's registering attempts (I'm not very familiar with all
      SIP message types)?<br>
    </p>
    <br>
    <div class="moz-cite-prefix">On 10/10/2017 03:11 PM, Matt Riddell
      (lists) wrote:<br>
    </div>
    <blockquote type="cite"
      cite="mid:215B2053-F75D-46E9-A57C-2E0DF47B694F@venturevoip.com">
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      Maybe the provider has added an extra gateway and it is not
      processing accounts correctly. 
      <div><br>
      </div>
      <div>If they had one before and now two then 40-60% registration
        fails would show that. <br>
        <br>
        <div id="AppleMailSignature"><span style="font-family:
            UICTFontTextStyleBody; -webkit-text-size-adjust: auto;">Kind
            regards,</span>
          <div><span style="font-family: UICTFontTextStyleBody;
              -webkit-text-size-adjust: auto;"><br>
            </span></div>
          <div><span style="font-family: UICTFontTextStyleBody;
              -webkit-text-size-adjust: auto;">Matt</span></div>
        </div>
        <div><br>
          On Oct 10, 2017, at 06:27, Dmitriy Ermakov <<a
            href="mailto:demonihin@gmail.com" moz-do-not-send="true">demonihin@gmail.com</a>>
          wrote:<br>
          <br>
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            <p>Hello!</p>
            <p>Could you help me with Asterisk 11.21.2 and AsteriskNow
              platform.</p>
            <p>The problem is:</p>
            <p>My Asterisk PBX has SIP (chan_sip) trunk to provider.</p>
            <p>Asterisk periodically loses trunk registratrion:</p>
            <p><b>sip show registry:</b></p>
            <p><i>Host                                    dnsmgr
                Username       Refresh State               
                Reg.Time                 </i><i><br>
              </i><i>X.X.X.X:5060                    N     
                <LOGIN>            105 Unregistered           </i><b><br>
              </b></p>
            <p>This happens sometimes once per 4 hours, sometimes once
              per a week.</p>
            <p>I don't see any patterns.</p>
            <p><b>sip.conf:</b></p>
            <p>registerattempts=0</p>
            <p>registertimeout=20</p>
            <p><b>peer confifuration:</b><br>
            </p>
            <p>[XXXX-friend]<br>
              disallow=all<br>
              host=192.168.1.1<br>
              defaultuser=<phone number><br>
              fromuser=<phone number><br>
              callerid=<phone number><br>
              secret=<ISP secret><br>
              type=friend<br>
              qualify=yes<br>
              allow=ulaw<br>
              allow=alaw<br>
              nat=no<br>
              rtpkeepalive=10<br>
              dtmfmode=rfc2833<br>
              insecure=port,invite<br>
              context=from-trunk-ISP1<br>
              fromdomain=<ISP domain><br>
            </p>
            <p><b>registration string:</b></p>
            <p>register=<phone number>:<ISP secret>@<ISP
              domain>/<phone number></p>
            <p><b>where:</b></p>
            <p><phone number> is our ISP-provided phone number</p>
            <p><ISP secret> is our ISP-provided SIP secret</p>
            <p><ISP domain> is our ISP SIP server IP address</p>
            <p>I don't have NAT between the ISP and my server (the ISP
              server IP address is in Asterisk's sip.conf Localnet
              scope) but as I can see there is ISP's routers between my
              Asterisk and the ISP SIP server.<br>
            </p>
            <p>There is not any firewall between the ISP and my
              Asterisk. The firewall rules on Asterisk host allow any
              traffic from host to the ISP and allow 5060/UDP from ISP
              to Asterisk host.</p>
            <p><br>
            </p>
            <p>When I restart Asterisk I can see successful registration
              to the ISP. And it works. I can make calls in any
              direction but after some time I have the "Unregistered"
              status and calls don't work.</p>
            <p>When I make tcpdump I can see about 40-60% failed
              REGISTER attempts (401 forbidden) and 100% failed OPTIONS
              attempts (is it qualify packets?) with 401 forbidden.</p>
            <p>The interesting thing is: the last REGISTER packet from
              my Asterisk to the ISP has "OK" response and there was not
              any REGISTER attempts after this packet, only OPTIONS
              packets.<br>
            </p>
            <p>The second interesting thing is: this ISP has been
              working for about 6 or even 12 months before this problem
              happened.</p>
            <p><br>
            </p>
            <p>What should I check to understand and solve my problem?</p>
            <p><br>
            </p>
            <p>P.S. I'm sorry for my bad English(<br>
            </p>
            <pre class="moz-signature" cols="72">-- 
Dmitriy Ermakov</pre>
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          <div><span>-- </span><br>
            <span>_____________________________________________________________________</span><br>
            <span>-- Bandwidth and Colocation Provided by <a
                href="http://www.api-digital.com" moz-do-not-send="true">http://www.api-digital.com</a>
              --</span><br>
            <span></span><br>
            <span>Check out the new Asterisk community forum at: <a
                href="https://community.asterisk.org/"
                moz-do-not-send="true">https://community.asterisk.org/</a></span><br>
            <span></span><br>
            <span>New to Asterisk? Start here:</span><br>
            <span>      <a
                href="https://wiki.asterisk.org/wiki/display/AST/Getting+Started"
                moz-do-not-send="true">https://wiki.asterisk.org/wiki/display/AST/Getting+Started</a></span><br>
            <span></span><br>
            <span>asterisk-users mailing list</span><br>
            <span>To UNSUBSCRIBE or update options visit:</span><br>
            <span>   <a
                href="http://lists.digium.com/mailman/listinfo/asterisk-users"
                moz-do-not-send="true">http://lists.digium.com/mailman/listinfo/asterisk-users</a></span></div>
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    <pre class="moz-signature" cols="72">-- 
С уважением, Дмитрий Ермаков</pre>
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