I applied through other source. I interviewed at AT&T in Nov 2013
Interview
Peer and supervisor interviews. 1 on 1 and panel interviews. Pretty relaxed and informal. I was progressing from one AT&T position to another, so knew all the stakeholders.
The process was efficient and timely. Interview was standard. nothing tricky or creative. The job was accurately described.
I was asked to interview and the interview was completed within two weeks on a single day.
I had most of my communication with the actual hiring manager.
Interview questions [1]
Question 1
They asked for a detailed plan to improve a product.
I applied online. The process took 2 months. I interviewed at AT&T in Nov 2010
Interview
Interviewed with 3-4 managers over the phone (I lived out of state). Questions included, "tell me a time when you were tasked with a responsibility..." and "how did you handle disagreements among team members." To prepare for these type of questions, think STAR: Situation, Task, Action, Results.
Interview questions [1]
Question 1
I didn't come across any difficult questions since I had 8+ years of experience for the roleI was applying for. Perhaps the most difficult question at the time was "how do you query 3rd party partners for a business solution they want to implement at ATT."