It was very straightforward, the interviewer really followed a strict process, but they do make you feel comfortable throughout. They type your answers for the first half of the interview and don't ask any follow up questions about what you said, so it's really up to you how thorough you want to be. These would be mostly questions about your background, what certain values mean to you, and an example of how you work. The second half was a roleplay scenario, they just want to see how you naturally talk to people over the phone. Make sure you're really being empathetic during this and not just follow the process of a call.