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    Hi Jorge,<br>
    <br>
    So opensips tries to send the BYE to Z.Z.Z.Z:5062 via TCP (guess
    based on Route hdrs), but nobody is listening on TCP - is this
    address pointing behind a NAT ? why is not accepting a new TCP
    connection.<br>
    <br>
    On the other side, what you can do is to reduce the timeout on TCP
    connection, so opensips will react sooner:<br>
    &nbsp;&nbsp;&nbsp; <a class="moz-txt-link-freetext" href="http://www.opensips.org/Resources/DocsCoreFcn18#toc78">http://www.opensips.org/Resources/DocsCoreFcn18#toc78</a><br>
    <br>
    Regards,<br>
    Bogdan<br>
    <br>
    On 04/04/2012 05:16 PM, Jorge Ortea wrote:
    <blockquote cite="mid:DUB111-W83DAAED253E136326B3402DC320@phx.gbl"
      type="cite">
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        <br>
        Hi Bogdan,<br>
        <br>
        Exactly, is ready, OpenSIPS try to reach to destination but now
        the account 2105 haven't the location:&nbsp; Z.Z.Z.Z:5062<br>
        <br>
        In fact, when OpenSIPS try to reach to there, it write in
        log:&nbsp;&nbsp;&nbsp;&nbsp; (this account uses TLS signaling)<br>
        <br>
        Apr&nbsp; 4 10:14:17 alpha02 /usr/local/sbin/opensips[29503]: ::::::
        BYE - from 911111111 to O2105 - Callid: <a
          moz-do-not-send="true" class="ecxmoz-txt-link-abbreviated"
          href="mailto:5b62cc795e6be4ea3fa9a26e543e3622@X.X.X.152">5b62cc795e6be4ea3fa9a26e543e3622@X.X.X.152</a>
        - Source: X.X.X.152<br>
        Apr&nbsp; 4 10:14:18 alpha02 /usr/local/sbin/opensips[29525]: ::::::
        BYE - from 911111111 to O2105 - Callid: <a
          moz-do-not-send="true" class="ecxmoz-txt-link-abbreviated"
          href="mailto:5b62cc795e6be4ea3fa9a26e543e3622@X.X.X.152">5b62cc795e6be4ea3fa9a26e543e3622@X.X.X.152</a>
        - Source: X.X.X.152<br>
        Apr&nbsp; 4 10:14:19 alpha02 /usr/local/sbin/opensips[29497]: ::::::
        BYE - from 911111111 to O2105 - Callid: <a
          moz-do-not-send="true" class="ecxmoz-txt-link-abbreviated"
          href="mailto:5b62cc795e6be4ea3fa9a26e543e3622@X.X.X.152">5b62cc795e6be4ea3fa9a26e543e3622@X.X.X.152</a>
        - Source: X.X.X.152<br>
        Apr&nbsp; 4 10:14:21 alpha02 /usr/local/sbin/opensips[29487]: ::::::
        BYE - from 911111111 to O2105 - Callid: <a
          moz-do-not-send="true" class="ecxmoz-txt-link-abbreviated"
          href="mailto:5b62cc795e6be4ea3fa9a26e543e3622@X.X.X.152">5b62cc795e6be4ea3fa9a26e543e3622@X.X.X.152</a>
        - Source: X.X.X.152<br>
        Apr&nbsp; 4 10:14:25 alpha02 /usr/local/sbin/opensips[29511]: ::::::
        BYE - from 911111111 to O2105 - Callid: <a
          moz-do-not-send="true" class="ecxmoz-txt-link-abbreviated"
          href="mailto:5b62cc795e6be4ea3fa9a26e543e3622@X.X.X.152">5b62cc795e6be4ea3fa9a26e543e3622@X.X.X.152</a>
        - Source: X.X.X.152<br>
        Apr&nbsp; 4 10:14:27 alpha02 /usr/local/sbin/opensips[29503]:
        ERROR:core:tcp_blocking_connect: timeout 10 s elapsed from 10 s
        <br>
        Apr&nbsp; 4 10:14:27 alpha02 /usr/local/sbin/opensips[29503]:
        ERROR:core:tcpconn_connect: tcp_blocking_connect failed <br>
        Apr&nbsp; 4 10:14:27 alpha02 /usr/local/sbin/opensips[29503]:
        ERROR:core:tcp_send: connect failed <br>
        Apr&nbsp; 4 10:14:27 alpha02 /usr/local/sbin/opensips[29503]:
        ERROR:tm:msg_send: tcp_send failed <br>
        Apr&nbsp; 4 10:14:27 alpha02 /usr/local/sbin/opensips[29503]:
        ERROR:tm:t_forward_nonack: sending request failed <br>
        <br>
        Thus, how can i detect and avoid this ??<br>
        <br>
        Thanks.<br>
        Regards.<br>
        <br>
        <br>
        <div>
          <hr id="stopSpelling">Date: Wed, 4 Apr 2012 14:56:16 +0300<br>
          From: <a class="moz-txt-link-abbreviated" href="mailto:bogdan@opensips.org">bogdan@opensips.org</a><br>
          To: <a class="moz-txt-link-abbreviated" href="mailto:users@lists.opensips.org">users@lists.opensips.org</a><br>
          CC: <a class="moz-txt-link-abbreviated" href="mailto:darham@hotmail.com">darham@hotmail.com</a><br>
          Subject: Re: [OpenSIPS-Users] sip message enters on bucle<br>
          <br>
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          Hi Jorge,<br>
          <br>
          It looks like Asterisk generates the BYEs and retransmits it
          because there is no reply coming back from opensips. Normally
          the BYE is end 2 end replied (so the other end device should
          generate the reply for BYE).<br>
          But looking at the 477 reply you get from OpenSIPS, I suspect
          that OpenSIPS was trying to forward the BYE request (maybe via
          TCP), got blocked and failed at the end - this failure
          resulted in the 477 reply.<br>
          <br>
          Check the opensips logs to see error when processing the BYE.<br>
          <br>
          Regards,<br>
          Bogdan<br>
          <br>
          On 04/04/2012 11:42 AM, Jorge Ortea wrote:
          <blockquote
            cite="mid:DUB111-W60E9DE08ECED1A16CF51BADC320@phx.gbl">
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            <div dir="ltr"> Hi,<br>
              <br>
              I have the follow VoIP platform;&nbsp; OpenSIPS 1.6.4.2-tls +
              Mediaproxy 2.0 + a pair of Asterisks 1.4 (behind SER)<br>
              <br>
              It works fine but sometimes a sip message enters on a
              loop. <span id="ecxresult_box" class="ecxshort_text"
                lang="en"><span class="ecxhps">Asterisk</span> <span
                  class="ecxhps">sends</span> <span class="ecxhps"></span></span><span
                id="ecxresult_box" class="ecxshort_text" lang="en"><span
                  class="ecxhps"></span><span class="ecxhps">5 sip
                  messages</span> <span class="ecxhps">at every turn</span></span><br>
              <br>
              <br>
              My logs in OpenSIPS:<br>
              <br>
              Apr&nbsp; 4 10:14:17 alpha02 /usr/local/sbin/opensips[29503]:
              :::::: BYE - from 911111111 to O2105 - Callid: <a
                moz-do-not-send="true"
                class="ecxmoz-txt-link-abbreviated"
                href="mailto:5b62cc795e6be4ea3fa9a26e543e3622@X.X.X.152">5b62cc795e6be4ea3fa9a26e543e3622@X.X.X.152</a>
              - Source: X.X.X.152<br>
              Apr&nbsp; 4 10:14:18 alpha02 /usr/local/sbin/opensips[29525]:
              :::::: BYE - from 911111111 to O2105 - Callid: <a
                moz-do-not-send="true"
                class="ecxmoz-txt-link-abbreviated"
                href="mailto:5b62cc795e6be4ea3fa9a26e543e3622@X.X.X.152">5b62cc795e6be4ea3fa9a26e543e3622@X.X.X.152</a>
              - Source: X.X.X.152<br>
              Apr&nbsp; 4 10:14:19 alpha02 /usr/local/sbin/opensips[29497]:
              :::::: BYE - from 911111111 to O2105 - Callid: <a
                moz-do-not-send="true"
                class="ecxmoz-txt-link-abbreviated"
                href="mailto:5b62cc795e6be4ea3fa9a26e543e3622@X.X.X.152">5b62cc795e6be4ea3fa9a26e543e3622@X.X.X.152</a>
              - Source: X.X.X.152<br>
              Apr&nbsp; 4 10:14:21 alpha02 /usr/local/sbin/opensips[29487]:
              :::::: BYE - from 911111111 to O2105 - Callid: <a
                moz-do-not-send="true"
                class="ecxmoz-txt-link-abbreviated"
                href="mailto:5b62cc795e6be4ea3fa9a26e543e3622@X.X.X.152">5b62cc795e6be4ea3fa9a26e543e3622@X.X.X.152</a>
              - Source: X.X.X.152<br>
              Apr&nbsp; 4 10:14:25 alpha02 /usr/local/sbin/opensips[29511]:
              :::::: BYE - from 911111111 to O2105 - Callid: <a
                moz-do-not-send="true"
                class="ecxmoz-txt-link-abbreviated"
                href="mailto:5b62cc795e6be4ea3fa9a26e543e3622@X.X.X.152">5b62cc795e6be4ea3fa9a26e543e3622@X.X.X.152</a>
              - Source: X.X.X.152<br>
              &nbsp; <br>
              <br>
              <br>
              Sip messages in Asterisk *CLI&gt; 'sip debug':<br>
              <br>
              set_destination: Parsing <a moz-do-not-send="true"
                class="ecxmoz-txt-link-rfc2396E" target="_blank">&lt;sip:X.X.X.150;r2=on;lr=on;did=e25.7093e044&gt;</a>
              for address/port to send to<br>
              set_destination: set destination to X.X.X.150, port 5060<br>
              Reliably Transmitting (no NAT) to X.X.X.150:5060:<br>
              BYE <a moz-do-not-send="true"
                class="ecxmoz-txt-link-freetext" target="_blank">sip:2105@Z.Z.Z.Z:5062;transport=tls</a>
              SIP/2.0<br>
              Via: SIP/2.0/UDP
              X.X.X.152:5060;branch=z9hG4bK59044fff;rport<br>
              Route:
              <a moz-do-not-send="true" class="ecxmoz-txt-link-rfc2396E"
                target="_blank">&lt;sip:X.X.X.150;r2=on;lr=on;did=e25.7093e044&gt;</a>,<a
                moz-do-not-send="true" class="ecxmoz-txt-link-rfc2396E"
                target="_blank">&lt;sip:Y.Y.Y.150:5061;transport=tls;r2=on;lr=on;did=e25.7093e044&gt;</a><br>
              From: "911111111" <a moz-do-not-send="true"
                class="ecxmoz-txt-link-rfc2396E" target="_blank">&lt;sip:911111111@X.X.X.152&gt;</a>;tag=as167eb28e<br>
              To: <a moz-do-not-send="true"
                class="ecxmoz-txt-link-rfc2396E" target="_blank">&lt;sip:O2105@X.X.X.150&gt;</a>;tag=bcd482cd12b8a21i0<br>
              Call-ID: <a moz-do-not-send="true"
                class="ecxmoz-txt-link-abbreviated"
                href="mailto:5b62cc795e6be4ea3fa9a26e543e3622@X.X.X.152">5b62cc795e6be4ea3fa9a26e543e3622@X.X.X.152</a><br>
              CSeq: 2874 BYE<br>
              User-Agent: Asterisk PBX<br>
              Max-Forwards: 70<br>
              X-Asterisk-HangupCause: Normal Clearing<br>
              X-Asterisk-HangupCauseCode: 16<br>
              Content-Length: 0<br>
              <br>
              <br>
              ---<br>
              Scheduling destruction of SIP dialog '<a
                moz-do-not-send="true"
                class="ecxmoz-txt-link-abbreviated"
                href="mailto:5b62cc795e6be4ea3fa9a26e543e3622@X.X.X.152">5b62cc795e6be4ea3fa9a26e543e3622@X.X.X.152</a>'
              in 32000 ms (Method: REFER)<br>
              Retransmitting #1 (no NAT) to X.X.X.150:5060:<br>
              BYE <a moz-do-not-send="true"
                class="ecxmoz-txt-link-freetext" target="_blank">sip:2105@Z.Z.Z.Z:5062;transport=tls</a>
              SIP/2.0<br>
              Via: SIP/2.0/UDP
              X.X.X.152:5060;branch=z9hG4bK59044fff;rport<br>
              Route:
              <a moz-do-not-send="true" class="ecxmoz-txt-link-rfc2396E"
                target="_blank">&lt;sip:X.X.X.150;r2=on;lr=on;did=e25.7093e044&gt;</a>,<a
                moz-do-not-send="true" class="ecxmoz-txt-link-rfc2396E"
                target="_blank">&lt;sip:Y.Y.Y.150:5061;transport=tls;r2=on;lr=on;did=e25.7093e044&gt;</a><br>
              From: "911111111" <a moz-do-not-send="true"
                class="ecxmoz-txt-link-rfc2396E" target="_blank">&lt;sip:911111111@X.X.X.152&gt;</a>;tag=as167eb28e<br>
              To: <a moz-do-not-send="true"
                class="ecxmoz-txt-link-rfc2396E" target="_blank">&lt;sip:O2105@X.X.X.150&gt;</a>;tag=bcd482cd12b8a21i0<br>
              Call-ID: <a moz-do-not-send="true"
                class="ecxmoz-txt-link-abbreviated"
                href="mailto:5b62cc795e6be4ea3fa9a26e543e3622@X.X.X.152">5b62cc795e6be4ea3fa9a26e543e3622@X.X.X.152</a><br>
              CSeq: 2874 BYE<br>
              User-Agent: Asterisk PBX<br>
              Max-Forwards: 70<br>
              X-Asterisk-HangupCause: Normal Clearing<br>
              X-Asterisk-HangupCauseCode: 16<br>
              Content-Length: 0<br>
              <br>
              <br>
              ---<br>
              Retransmitting #2 (no NAT) to X.X.X.150:5060:<br>
              BYE <a moz-do-not-send="true"
                class="ecxmoz-txt-link-freetext" target="_blank">sip:2105@Z.Z.Z.Z:5062;transport=tls</a>
              SIP/2.0<br>
              Via: SIP/2.0/UDP
              X.X.X.152:5060;branch=z9hG4bK59044fff;rport<br>
              Route:
              <a moz-do-not-send="true" class="ecxmoz-txt-link-rfc2396E"
                target="_blank">&lt;sip:X.X.X.150;r2=on;lr=on;did=e25.7093e044&gt;</a>,<a
                moz-do-not-send="true" class="ecxmoz-txt-link-rfc2396E"
                target="_blank">&lt;sip:Y.Y.Y.150:5061;transport=tls;r2=on;lr=on;did=e25.7093e044&gt;</a><br>
              From: "911111111" <a moz-do-not-send="true"
                class="ecxmoz-txt-link-rfc2396E" target="_blank">&lt;sip:911111111@X.X.X.152&gt;</a>;tag=as167eb28e<br>
              To: <a moz-do-not-send="true"
                class="ecxmoz-txt-link-rfc2396E" target="_blank">&lt;sip:O2105@X.X.X.150&gt;</a>;tag=bcd482cd12b8a21i0<br>
              Call-ID: <a moz-do-not-send="true"
                class="ecxmoz-txt-link-abbreviated"
                href="mailto:5b62cc795e6be4ea3fa9a26e543e3622@X.X.X.152">5b62cc795e6be4ea3fa9a26e543e3622@X.X.X.152</a><br>
              CSeq: 2874 BYE<br>
              User-Agent: Asterisk PBX<br>
              Max-Forwards: 70<br>
              X-Asterisk-HangupCause: Normal Clearing<br>
              X-Asterisk-HangupCauseCode: 16<br>
              Content-Length: 0<br>
              <br>
              <br>
              ---<br>
              Retransmitting #3 (no NAT) to X.X.X.150:5060:<br>
              BYE <a moz-do-not-send="true"
                class="ecxmoz-txt-link-freetext" target="_blank">sip:2105@Z.Z.Z.Z:5062;transport=tls</a>
              SIP/2.0<br>
              Via: SIP/2.0/UDP
              X.X.X.152:5060;branch=z9hG4bK59044fff;rport<br>
              Route:
              <a moz-do-not-send="true" class="ecxmoz-txt-link-rfc2396E"
                target="_blank">&lt;sip:X.X.X.150;r2=on;lr=on;did=e25.7093e044&gt;</a>,<a
                moz-do-not-send="true" class="ecxmoz-txt-link-rfc2396E"
                target="_blank">&lt;sip:Y.Y.Y.150:5061;transport=tls;r2=on;lr=on;did=e25.7093e044&gt;</a><br>
              From: "911111111" <a moz-do-not-send="true"
                class="ecxmoz-txt-link-rfc2396E" target="_blank">&lt;sip:911111111@X.X.X.152&gt;</a>;tag=as167eb28e<br>
              To: <a moz-do-not-send="true"
                class="ecxmoz-txt-link-rfc2396E" target="_blank">&lt;sip:O2105@X.X.X.150&gt;</a>;tag=bcd482cd12b8a21i0<br>
              Call-ID: <a moz-do-not-send="true"
                class="ecxmoz-txt-link-abbreviated"
                href="mailto:5b62cc795e6be4ea3fa9a26e543e3622@X.X.X.152">5b62cc795e6be4ea3fa9a26e543e3622@X.X.X.152</a><br>
              CSeq: 2874 BYE<br>
              User-Agent: Asterisk PBX<br>
              Max-Forwards: 70<br>
              X-Asterisk-HangupCause: Normal Clearing<br>
              X-Asterisk-HangupCauseCode: 16<br>
              Content-Length: 0<br>
              <br>
              <br>
              ---<br>
              Retransmitting #4 (no NAT) to X.X.X.150:5060:<br>
              BYE <a moz-do-not-send="true"
                class="ecxmoz-txt-link-freetext" target="_blank">sip:2105@Z.Z.Z.Z:5062;transport=tls</a>
              SIP/2.0<br>
              Via: SIP/2.0/UDP
              X.X.X.152:5060;branch=z9hG4bK59044fff;rport<br>
              Route:
              <a moz-do-not-send="true" class="ecxmoz-txt-link-rfc2396E"
                target="_blank">&lt;sip:X.X.X.150;r2=on;lr=on;did=e25.7093e044&gt;</a>,<a
                moz-do-not-send="true" class="ecxmoz-txt-link-rfc2396E"
                target="_blank">&lt;sip:Y.Y.Y.150:5061;transport=tls;r2=on;lr=on;did=e25.7093e044&gt;</a><br>
              From: "911111111" <a moz-do-not-send="true"
                class="ecxmoz-txt-link-rfc2396E" target="_blank">&lt;sip:911111111@X.X.X.152&gt;</a>;tag=as167eb28e<br>
              To: <a moz-do-not-send="true"
                class="ecxmoz-txt-link-rfc2396E" target="_blank">&lt;sip:O2105@X.X.X.150&gt;</a>;tag=bcd482cd12b8a21i0<br>
              Call-ID: <a moz-do-not-send="true"
                class="ecxmoz-txt-link-abbreviated"
                href="mailto:5b62cc795e6be4ea3fa9a26e543e3622@X.X.X.152">5b62cc795e6be4ea3fa9a26e543e3622@X.X.X.152</a><br>
              CSeq: 2874 BYE<br>
              User-Agent: Asterisk PBX<br>
              Max-Forwards: 70<br>
              X-Asterisk-HangupCause: Normal Clearing<br>
              X-Asterisk-HangupCauseCode: 16<br>
              Content-Length: 0<br>
              <br>
              <br>
              ---<br>
              <br>
              &lt;--- SIP read from X.X.X.150:5060 ---&gt;<br>
              SIP/2.0 477 Send failed (477/TM)<br>
              Via: SIP/2.0/UDP
              X.X.X.152:5060;branch=z9hG4bK59044fff;rport=5060<br>
              From: "911111111" <a moz-do-not-send="true"
                class="ecxmoz-txt-link-rfc2396E" target="_blank">&lt;sip:911111111@X.X.X.152&gt;</a>;tag=as167eb28e<br>
              To: <a moz-do-not-send="true"
                class="ecxmoz-txt-link-rfc2396E" target="_blank">&lt;sip:O2105@X.X.X.150&gt;</a>;tag=bcd482cd12b8a21i0<br>
              Call-ID: <a moz-do-not-send="true"
                class="ecxmoz-txt-link-abbreviated"
                href="mailto:5b62cc795e6be4ea3fa9a26e543e3622@X.X.X.152">5b62cc795e6be4ea3fa9a26e543e3622@X.X.X.152</a><br>
              CSeq: 2874 BYE<br>
              Server: OpenSIPS (1.6.4-2-tls (i386/linux))<br>
              Content-Length: 0<br>
              <br>
              <br>
              &lt;-------------&gt;<br>
              --- (8 headers 0 lines) ---<br>
              SIP Response message for INCOMING dialog BYE arrived<br>
              &nbsp;&nbsp;&nbsp; -- Incoming call: Got SIP response 477 "Send failed
              (477/TM)" back from X.X.X.150<br>
              <br>
              <br>
              <br>
              At the end, i have restart the asterisk to solve it. How
              can I avoid it ?<br>
              <br>
              <br>
              Thanks.<br>
              Regards.<br>
              <br>
              <br>
            </div>
            <pre><fieldset class="ecxmimeAttachmentHeader"></fieldset>
_______________________________________________
Users mailing list
<a moz-do-not-send="true" class="ecxmoz-txt-link-abbreviated" href="mailto:Users@lists.opensips.org">Users@lists.opensips.org</a>
<a moz-do-not-send="true" class="ecxmoz-txt-link-freetext" href="http://lists.opensips.org/cgi-bin/mailman/listinfo/users" target="_blank">http://lists.opensips.org/cgi-bin/mailman/listinfo/users</a>
</pre>
          </blockquote>
          <br>
          <br>
          <pre class="ecxmoz-signature">-- 
Bogdan-Andrei Iancu
OpenSIPS Founder and Developer
<a moz-do-not-send="true" class="ecxmoz-txt-link-freetext" href="http://www.opensips-solutions.com" target="_blank">http://www.opensips-solutions.com</a></pre>
        </div>
      </div>
    </blockquote>
    <br>
    <br>
    <pre class="moz-signature" cols="72">-- 
Bogdan-Andrei Iancu
OpenSIPS Founder and Developer
<a class="moz-txt-link-freetext" href="http://www.opensips-solutions.com">http://www.opensips-solutions.com</a></pre>
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