[Serusers] How to execute failure_route block on tcp connect failure.

Hello, I am having a problem executing a failure_route block when t_relay fails to establish a tcp connection. Everything works as expected when t_relay connects to a proxy and receives back an error like 501. Is there a way to configure t_relay to execute a failure_route block an a tcp connection error? Thank You in advance. Dmitry Here are the logs from connection failure - Jun 15 20:52:14 localhost ser[21870]: ERROR: tcp_blocking_connect: SO_ERROR (111) Connection refused Jun 15 20:52:14 localhost ser[21870]: ERROR: tcpconn_connect: tcp_blocking_connect failed Jun 15 20:52:14 localhost ser[21870]: ERROR: tcp_send: connect failed Jun 15 20:52:14 localhost ser[21870]: msg_send: ERROR: tcp_send failed Jun 15 20:52:14 localhost ser[21870]: ERROR: t_forward_nonack: sending request failed