I applied through a staffing agency. The process took 4 weeks. I interviewed at AT&T (Bengaluru) in Apr 2017
Interview
Initial phone interview and follow up with group/panel interview process. Technical interview with hiring manager and staff, reviewed understanding of network protocols. Must understand the troubleshoot method and must be a team player.
I applied online. The process took 1 week. I interviewed at AT&T (Los Angeles, CA) in Jan 2018
Interview
the pnone interview will be general questions. if you are lucky enough you will be able to answer general questions from HR if not you may go through technical questions and answer
I applied online. The process took 1+ week. I interviewed at AT&T in Jun 2017
Interview
The process was fairly quick. I was able to speak with the program manager and was able to do several over the phone interviews. The team was very professional as well as tactful.