Phone Interviews

I don't like them. I was invited to do one this Friday for a position I am really excited about. I was told it would only be 15-30 minutes long. Why bother? What can be learned in that amount of time? I've been on both sides of phone interviews and I can tell you that they're mostly used to weed out people who can't communicate well. It's mostly about personality. I helped conduct one once where it was like pulling teeth from the candidate. Another time, a candidate wouldn't quit talking. It was like trying to talk to a telemarketer. Barring any really difficult questions (which I doubt since these things are usually general), I should be invited for a real interview. I hope so anyway.