Hi Matt,
That is not actually an error, is OpenSIPS complaining that is not able
to open a TCP connection towards the wanted destination (one of yours
UACs) - see the "Connection refused" error log.
Why ? if there is no limitation on the network level (NAT, firewall,
etc), then it means the registered contact (of an UAC) is not correctly
pointing to the listening interface of the UAC , making OpenSIPS to try
to open a TCP conn to a wrong destination.
Regards,
Bogdan-Andrei Iancu
OpenSIPS Founder and Developer
http://www.opensips-solutions.com
On 10.09.2015 18:09, Matt Hamilton wrote:
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.
INVITE RURI: sip:[email protected]:5070;transport=tls
INVITE RURI: sip:[email protected]:5061;transport=tls
INVITE RURI: sip:[email protected]:5077;transport=tls
INVITE RURI: sip:[email protected]:5070;transport=tls
INVITE RURI: sip:[email protected]:5068;transport=tls
The error appears to be in either one of the two forms below:
ERROR:core:tcp_blocking_connect: poll error: flags 24 - 4 8 16 32
ERROR:core:tcp_blocking_connect: failed to retrieve SO_ERROR
[server=172.16.13.164:5070] (111) Connection refused
ERROR:core:tcpconn_connect: tcp_blocking_connect failed
ERROR:core:tcp_send: connect failed
ERROR:tm:msg_send: tcp_send failed
ERROR:tm:t_forward_nonack: sending request failed
or
ERROR:core:tcp_blocking_connect: timeout 99170 ms elapsed from 100 ms
ERROR:core:tcpconn_connect: tcp_blocking_connect failed
ERROR:core:tcp_send: connect failed
ERROR:tm:msg_send: tcp_send failed
ERROR:tm:t_forward_nonack: sending request failed
How should I proceed to get to the bottom of this? Any parameters I
should look into?
Thanks,
Matt
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