Phone and then in person. It was with my eventual boss and the in person interview included a shadow of a current admissions advisor. This was my first job out of undergraduate. The interview had some difficult questions, but if you prepared to some of the standard "Tell me an example when" questions you will do just fine.

Two interviews, one with Assistant Director one with Director. Experience questions and what if questions. What would you do if.... In your passed how did you react when someone.... If you had to talk to someone who was rude with you what would you do?