Panny way is great. Button has 4 four modes.
Press for Nite, sys rings in nite mode and AA plays nite message, put in lunch mode, sys rings lunch mode and plays lunch messge, same for break.
That Manual control. Or you use use auto schedule to have switch control via a time table, including Holidays. An after hours greeting the subscriber box would be nice to. Plays any time the system is in nite or A holiday sched.