[onewhippedpuppy]

Phone interview or a phone screen with HR? Usually step one in the hiring process is a screen with HR where they ask some basic weed-out questions along with the usual behavioral interview questions, then provide the information to the hiring manager to determine who gets an actual interview.

I'm in aerospace, usually even our technical engineering interviews are more about personality fit, achievement, and past experience than they are technical content. The technical ability is somewhat assumed thanks to degree and experience, and it's pretty easy to spot a BS'er when you start talking about past experience. For an intern I would suspect you'll get a lot of questions about any past work experience to determine your willingness to work, high level questions about courses, questions about why you are interested in the company (review their website in advance!), and behavior based questions. Do research in advance and show up with questions, it makes you look prepared. Have the attitude that you will do anything to help the team, interns do a lot of grunt work. Probably most importantly, be willing to say "I don't know". You don't know it all, trying to act like you do is a big mistake. Good luck!