AT&T interview questions

The first call -- I received a phone call at a very early morning hour from an unrecognized number -- with no warning. I may have been rude, because I presumed this to be a poorly timed sales call. The phone connection (this is AT&T) was broken and garbled at times. The phone rep suggested that, since I applied online, I may have received a follow-up email requiring an inline signature. The Rep suggested I find the email a.s.a.p. and respond, so that I may be considered for any position. I eventually received the email and did as asked. The second call -- I received a second call in the middle of the day, and the Phone Rep was pleasant and considerate that I needed to find a quiet place to talk. I was asked a series of questions about my experience and understanding of the terms of employment. This is went very well. Then, when I was asked if I had any questions, I replied, "No." When I began to ask if/when I might hear from AT&T again, the line went dead. The number was unlisted, so I could not call back to continue. Everything appeared to go well, but I never heard back from the HR department -- and the whole process seemed very impersonal and cold.