AT&T is making a big investment in its digital network — and signaling its original, and extremely reliable, copper-wire system is on the way out.

AT&T announced this week it will invest $14 billion over the next three years to beef up its wireless and broadband services. The news is good for wireless customers, but could portend the demise of the old fashioned landline phone.

But is the move by the rival phone companies more about business than helping out?

AT&T, Verizon and Sprint offer huge subsidies on new smartphones that hit bottom line.

AT&T offers customers a simple and flexible world where they don’t get to use as much data as they might like.

Unlimited data plans, unlimited airline miles, all-you-can eat buffets — looking at the logic (or lack of) behind companies that launch all-you-can-eat plans.

AT&T said it is selling its Yellow Pages unit to private equity firm Cerberus. One a powerhouse, the Yellow Pages is losing to online rivals.

Some 40,000 AT&T workers could strike this weekend if contract negotiations fail.

It's the end of the line for truly unlimited data on your AT&T phone — even for the folks who were grandfathered in.