I have a 30 minute phone interview next week

[Scarpozzi]

I have a 30 minute phone interview planned with a major financial corporation next week for an IT job. The job is 550 miles away, so we're going to talk on the phone before I board a plane...

What all can I expect from the phone interview? What kinds of things should I do to prepare? This is the first time I've had to do one of these....I'm a little nervous.