I am trying to go back to live answer during business hours and auto attendant when we are closed. I tried it yesterday and the incoming calls were going to a call blast group just fine. at the designated time(4:00pm est) I had the calls go to night service which then forwards the call the the aa. The autoattendant would not accept dtmf codes. I changed the calls to go directly to the aa until i get it right. How can I turn the aa on and off at designated times?