I applied through college or university. The process took 5 weeks. I interviewed at AT&T in Feb 2017
Interview
The hiring manager along with a team member interviewed me on the phone for about an hour. They asked what research I have been doing, and what skills I have.
I applied online. The process took 4 weeks. I interviewed at AT&T in Jan 2015
Interview
It was easy. A director emailed me for interview. During the interview he asked few questions on my research. I explained what I am doing and what are the technologies I am using in my research.