[SR-Users] event_route [tcp:closed] not executed

[Juha Heinanen]

Based on comment:

  https://github.com/kamailio/kamailio/issues/171#issuecomment-418175840

I gave event_route [tcp:closed] a try:

event_route [tcp:closed] {  # Handle TCP connection close
    xlog("L_INFO", "$proto connection closed ($conid)\n");
}

Nothing comes to syslog when I quit my baresip UA that according to
wireshark closes its TCP connection after un-registration (fin - fin -
ack).

I have not set closed_event param, because according to README, it
defaults to 1.