I had a phone interview, and it was one hour long. They asked a lot of behavioural questions, so be prepared for that. I was notified a few days later that I didn't get the job, so they get back to you pretty quickly.

The interview took place over the phone and took exactly one hour to finish. Only five main questions were asked, but depending on the answers given they would ask many more specific questions about my answer. The interviewer gave no indication of the quality of my answers and was strictly professional. Overall, it was quite a difficult process.