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<p>Dear OpenSIPS users,</p>
<p><br>
</p>
<p>According to the OpenSIPS log, a callee answered a caller with SIP OK.</p>
<p>Such SIP OK has the following contact:</p>
<p><br>
</p>
<p><span> Contact: "Group" <sip:g1r2u3p4o5@127.0.0.1:40348;transport=TLS;ob>;+sip.ice</span><br>
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<p>However, it seems that there is no available connection to port 40348. That is, opensips cann't send any message to that port.</p>
<p>So, after opensips relaying a SIP ACK to <span>g1r2u3p4o5</span>, it caused the following error:</p>
<p><br>
</p>
<p></p>
<div>Jan 09 17:48:54 colibri-imx6 opensips[23115]: Jan 9 17:48:54 [23135] INFO:core:probe_max_sock_buff: using snd buffer of 320 kb<br>
Jan 09 17:48:54 colibri-imx6 opensips[23115]: Jan 9 17:48:54 [23135] INFO:core:init_sock_keepalive: TCP keepalive enabled on socket 22<br>
Jan 09 17:48:54 colibri-imx6 opensips[23115]: Jan 9 17:48:54 [23135] ERROR:core:tcp_connect_blocking: poll error: flags 28 - 4 8 16 32<br>
Jan 09 17:48:55 colibri-imx6 opensips[23115]: Jan 9 17:48:54 [23135] ERROR:core:tcp_connect_blocking: failed to retrieve SO_ERROR [server=127.0.0.1:40348] (111) Connection refused<br>
Jan 09 17:48:55 colibri-imx6 opensips[23115]: Jan 9 17:48:54 [23135] ERROR:proto_tls:tls_sync_connect: tcp_blocking_connect failed<br>
Jan 09 17:48:55 colibri-imx6 opensips[23115]: Jan 9 17:48:54 [23135] ERROR:proto_tls:proto_tls_send: connect failed<br>
Jan 09 17:48:55 colibri-imx6 opensips[23115]: Jan 9 17:48:54 [23135] ERROR:core:msg_send: send() for proto 3 failed<br>
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<p></p>
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<p>What is happening here?</p>
<p>How can a peer lost its connection or lost connect to opensips?</p>
<p>How to avoid this issue or recover from it?</p>
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</p>
<p>I have no idea on what to do. Any hint will be very helpful!</p>
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<p>Thanks a lot.<br>
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<div class="PlainText">RODRIGO PIMENTA CARVALHO<br>
Inatel Competence Center<br>
Software<br>
Ph: +55 35 3471 9200 RAMAL 979<br>
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