You and I have discussed this before MNDAVE, but I haven't been sure that I understand. Would the x16 System Programming parameters you suggest look like this:
Day Time 12:01 A
Night Time 12:00 A
So the "universal" greeting gives the same menu/extension directory choices, day or night, and the incoming calls ring the chosen extension for x number of rings both day and night before going to the extension owner's voicemail, when they don't answer, whether this is an x16 or another "brand" system. As opposed to having the "after hours" greeting transfer calls to directly to vm box chosen by the incoming caller, bypassing ringing the extension first. Perhaps with the x16 you don't have the choice of having calls transferred "directly" to VM from the "night" greeting.
