I am waiting for my second phone interview today. The first phone interview was a great experience. The woman I spoke to was from HR and so sweet. We had a fun conversation. The scariest thing about a phone interview to me is not being able to see the facial expression on your interviewer but I could hear it in her voice. I had a very nice time speaking with her.

The interview process is rather long. You interview with multiple people from HR, the team you're applying with, managers... it's all to see if you'll be a fit with the team. Being a culture fit is the most important thing, so the questions won't be boring.