I was asked to help out a friend with programming their phone system. She has a 2 carrier partner acs rel 3.0 phone system with the large voice mail card. She wants to put the system "to sleep" at night, preventing all voice mail when the night service is enabled. I have read over the manual, but can't figure out how to do this. I have the night service button assigned and can make the system pick up immediately or after 3 rings based on if the button is pressed or not. The problem is that it always gives the main menu, and you never heard the night service menu. Is this possible? Thanks for any help...