Yet the Wyatt Earp killed Johnny Ringo claim can be found in four separate sources (Forrestine Hooker, John Flood, Frank Lockwood, and Frederick Bechdolt), and each person had contact with Wyatt Earp or stated he told them the story.
A TCD is any sign, signal or marking that involves traffic. A speed limit sign is a type of TCD. A TCD ticket is a lesser violation carrying only 2 points. Even the lowest level speeding violation carries 3 points and the stigma of a speeding violation.
FXO ports, like all the other analog interfaces, carry one call per port, so each RJ-11 port on your Cisco Unified CME router connects to one line from the PSTN and carries a single call at a time. A second call is given a busy tone if it tries to use the same port or line.