I applied in-person. I interviewed at T-Mobile (Nashville, TN) in Apr 2014
Interview
Went in for a "Day in the Life" Job Fair. Applied on-site and had a face-to-face interview. They called me about a week later to formally offer me the position and send an E-Mail for a background check. Background check took 10-11 days to come back and for them to set me up on a training schedule. All told, it was ~3 weeks from interview to hire.
Interview questions [1]
Question 1
"Tell me how you dealt with a new policy change you did not agree with."