I am trying to get my 8x24DS set up so that when I change the service mode to "Night," no sets will ring. In admin programming>Service Modes>Night>Show Line, I have removed the ringing set from each line. The display shows "no ringing sets." When I place the system in Night mode, lines 1 and 2 still ring at all extensions. All lines are loop-start, and all phones are programmed to ring on lines 1 and 2 in normal mode. Lines 3 and 4 are not programmed to ring on any phone, and indeed they do not ring in normal or night modes.