An IBM executive told a conference in Atlanta on Nov. 7 that it hopes to move 80% of its 300,000 employees to voice-over-IP phone systems by 2008.This article in Businessweek states that “When the largest tech company on the planet announces it no longer needs the phone company to manage its calls, you can bet the communications landscape has fundamentally changed.” Why the Bells Should Be Very Scared [Smart Mobs]