AT&T barely resembles the giant it once was. Before Divestiture, AT&T owned all the long lines (long distance), all the local Bell companies, the Western Electric manufacturing arm, and every last phone in the country. AT&T spun off manufacturing long ago to Bell Labs Lucent, which further divvied itself up in the 90's, spinning off its Enterprise unit to Avaya and making Lucent primarily a maker of Central Office switches. AT&T now consists only of a long-distance fiber and microwave carrier and a cellphone unit, and they're merging that away as we speak. There's really not all that much left of a once-proud company. And soon there won't be ANYTHING left of them, because they still have that Al Qerry arrogance about them.
I'm into this kind of stuff because the company I own sells Avaya phone switches and systems.
Michael