Thanks Qazu,
At&T stopped selling 4 wire circuits(isdn, 56kdata, ie) about a year ago I believe. Verizon and Centurylink have sold off their Data Centers. Everyone is trying to find out how to make more money in this business.
I think it is smart for AT&T to move away from their TDM network, ethernet is the future and eventually everyone will be moving in that direction. The faster the better.
Andy