No formal interview took place, it was a call from one of the recruiters working there asking me questions about what kind of positions I would be interested and what my qualifications were.
They asked if I were available for an interview the next day and I said no. I would also not be available until the next week, to which the recruiter replied, "but how are you going to do work for one of our clients when they give you a deadline??"
The recruiter did not sound like they knew what they were doing at all. They asked me questions that could have been easily answered by taking a quick glance at my resume (which was uploaded to their website).