I am setting up the voicemail and auto attendant on an IP500 v2 Partner edition. I don't see any way to set up a different schedule for weekends and weekdays. So if the office is open 9 to 5 Monday through Friday and closed on Saturday and Sunday, how do you get the auto attendant to play the evening message all weekend instead of playing the morning or afternoon message if someone calls on Sunday morning or afternoon?

And what happens when yo press the night service button? Does it play the out-of-hours message then, no matter what time it is? Have I just answered my own question? Or not?

Is any of this affected by whether you choose Intuity mode or IPOffice mode?

Press F1 while you're in there programming the auto attendant

For call outside a configured time period or when the system is set to night service, the out of office hours greeting is used.

And you don't get the choice of Intuity or IP Office mode voice mail when in Basic Partner