It took a week for me to get my phone call. I interviewed Tues. Nov 20th(thanksgiving week) and recieved a phone call the next monday...but i missed it because i was instructing. So i got a voicemail saying to call her back. Chances are you will hear by monday. So far it is to my understanding that a call is made to you if you have it. Letter or an email might be the "too bad" answer. Make sure you have you phone readily available at that time... If you miss the phone call you prob wont hear anything until wed. because Lisa travels on Tuesdays.