It was relaxed but quite thorough. Some questions were very thought through therefore it is important to take a second before answering. It is best to use the Star technique to have some kind of structure to your answer. The telephone interview lasted 30-40 minutes, there were 2 questions however the interviewer will interrupt to clarify or to ask further questions for example why did you do that, why was it important do so for you. Overall experience was very good, the interviewers want you to do well and you can tell that from their approach.