I used to work for a versatile, dynamic company called Cingular Wireless. However, when AT&T bought the company in its entirety, things went downhill quickly. Benefits decreased and the levels of bureaucracy increased. AT&T didn't even give the same benefits to acquired companies that legacy employees were enjoying. Policies became convoluted and nothing could get done in a timely manner and when something was needed to be done, after going through the many approval levels of management, it was already past due and then needed to be done yesterday. Didn't matter that managers sat on the approval till the last moment, the employees doing the work were always blamed for tasks not getting done on time.
Morale was poor. There was no team-building anything and holiday parties had pretty much been PC'd into oblivion. Good managers had been shifted around to other duties and inept managers put in their place, including mine. My boss would always throw me under the bus every time another department couldn't have their way with me. Other managers were even from another line of business within the company that didn't even have a clue how to run a wireless company.
Be forewarned, if you want to languish in a cube like a typical corporate drone, this is your company. Then again, AT&T doesn't hire anymore anyway because they, like most US corporations, farm and contract everything out anyway. When times get tough, out go the contractors and all is well again with the books. Good luck!