Telephonic interview was about basic PD flow as this opening was for PD A.E. The interviewer asked few basic questions on CTS and few questions on si and crosstalk. The skype interview was quite good, the interviewers were technically very strong, and questions asked were not straight forward. Most of the questions were on CTS in the end he asked a very nice puzzle to test my reasoning.
Sigiloso
One tip while answering questions is that try to attempt the questions, and answer to the point don't try to fool them. Remember that they are much more knowledgeable than you.