I applied online. The process took 1 day. I interviewed at AT&T (Austin, TX) in Jan 2010
Interview
They flew me out to Austin, and I met first with the director who explained the position and the need and asked some questions about my background. Then I met the team working under him and got a tour of the lab facilities. Then they took me out to lunch, and that concluded the interview.
Interview questions [1]
Question 1
What test instrument and standards are you familiar with?