Surface-Line;
What was funny was watching from the Engine Telegraph when the Captain would walk up behind the chair and say "Good Morning " to the O.D. Asleep in the chair ! Those two were a year apart at the Academy and married Sisters!
The Telegraph, according to the Captain could ONLY on "His Ship" be manned by someone in Damage Control. I guess it was because the reaction time or something about the Sound Powered phone connection?
Oh, The Captain and the X.O would come and play baseball in the Enlisted field