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In one of our calling scenarios, INVITEs are sent via TLS to multiple UACs in an office (all ring, one picks up). The UACs are not NATed. Once in a while, we get tcp_connect error from one of the phones. None of the tcp related parameters (e.g. tcp_connection_lifetime,
etc.) are set in our script, so they all use default values. <br>
<br>
<br>
INVITE RURI: sip:585@172.16.13.164:5070;transport=tls<br>
INVITE RURI: sip:584@172.16.13.165:5061;transport=tls<br>
INVITE RURI: sip:583@172.16.13.162:5077;transport=tls<br>
INVITE RURI: sip:582@172.16.13.166:5070;transport=tls<br>
INVITE RURI: sip:581@172.16.13.163:5068;transport=tls<br>
<br>
The error appears to be in either one of the two forms below:<br>
<br>
ERROR:core:tcp_blocking_connect: poll error: flags 24 - 4 8 16 32 <br>
<p>ERROR:core:tcp_blocking_connect: failed to retrieve SO_ERROR [server=172.16.13.164:5070] (111) Connection refused<br>
ERROR:core:tcpconn_connect: tcp_blocking_connect failed<br>
ERROR:core:tcp_send: connect failed<br>
ERROR:tm:msg_send: tcp_send failed<br>
ERROR:tm:t_forward_nonack: sending request failed</p>
<p><br>
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<p>or</p>
<p><br>
</p>
<p>ERROR:core:tcp_blocking_connect: timeout 99170 ms elapsed from 100 ms<br>
ERROR:core:tcpconn_connect: tcp_blocking_connect failed<br>
ERROR:core:tcp_send: connect failed<br>
ERROR:tm:msg_send: tcp_send failed<br>
ERROR:tm:t_forward_nonack: sending request failed</p>
<p><br>
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<p>How should I proceed to get to the bottom of this? Any parameters I should look into?<br>
<br>
Thanks,</p>
<p>Matt<br>
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