I applied online. The process took 2 months. I interviewed at AT&T (Austin, TX) in Apr 2011
Interview
Initially contacted by HR to see if I was interested. Upon letting them know I was interested there was about a 1 week wait before a hiring manager contacted me. The hiring manager asked basic questions about my resume and some basic knowledge questions. After completing the phone interview I was contacted again by HR a week later and asked in for a formal in-person interview. The in-person interview consisted of 3 hours meeting 5 different people, 3 hiring managers and 2 new-hires. Each hiring manager was director of a different department and all asked different questions on different technical topics. The new-hires gave me the basics about the company, how it was to work there and asked me some general questions/personality questions. Upon completion of the in-person interview I got a call 3 weeks later with a formal offer, which I accepted. After accepting the offer I got an e-mail with all of he things I need to do. Drug test, background checks, international background check and credit check. The background check is incredibly thorough and you better make sure you have phone numbers for any reference or school you put down. They check everything on your resume for legitimacy. I passed this process which took a month and a half. and was hired in June. Total time from interview to hire was about 60 days.
Interview questions [1]
Question 1
Of all the layers of the OSI model, are they all required or could you make a model with less layers.
The process took 1 week. I interviewed at AT&T in Mar 2012
Interview
Sent in my resume and was contacted by their Staffing Department to have a phone interview. Was told that the phone interview would take about an hour because it would contain both behavioral and technical questions. Phone interview was scheduled for a few days later and happened as scheduled. Fairly straightforward interview with some technical questions that might stump people who didn't pay attention in college classes. Interview seemed to go well; they said I'd hear back within a few days. Got an offer less than a week after the Staffing Department contacted me to be interviewed.