Silly q, BUT, is the Day greeting perhaps set as the nigtht greeting? If the switch sends calls to VMS, then the VMS should be playing the night greeting if the VMS is set to follow the switch mode. You're saying thngs work if the business wschedule is used. It really sounds like the VMS has the Day greeting and Night greetings switched. Techeck the Day greeting, and the Night greeting,and see if they are in the right places.
Pepperz@newper.net