I had two phone interviews, each with a different prospective supervisor. They were both very friendly, more-or-less casual, and asked normal interview questions. I was told that the decision would be made very soon, but waited another six weeks to learn I had not gotten the job.

I had a one-hour phone interview followed by a panel interview in person with members of various teams that I would work with. They followed up with me almost immediately after each interview, but there was a few weeks between each stage in the process (phone interview, in-person interview, offer).