The phone interview was a short 45 minute call. There weren't any real restrictions and was relatively easy. The interviewer was nice, but honestly I think that varies from interviewer to interviewer so I was just lucky to get a kind and helpful interviewer to guide me when I was stuck.

First Screening call, then initial interview with an engineer (1 hour) and then final interview with four 1 hour rounds back to back with different engineers. For each round its the same, you'll be asked one behavioral question and one coding (LC style) question.