AT&T

Screened by recruiter, then phone interview with department head and direct supervisor. Questions seemed odd and inapplicable, but were based on ATT training, per the interviewer. Next stop would have been offer, but they were looking for more recent

Phone screen followed by an on-site interview. Nothing very difficult about that. The background check company was extremely annoying, as they insisted that I remember and provide contact information for past bosses going back 15 to almost 20 years

First, a call of half an hour, and then an exam from home (remote link with 14 questions, most are multiple choice and 1 coding question), then a scheduled interview with screen sharing.