Microsoft and VoIP

I have said before that everyone will be a VoIP provider in the future. Mary Jo Foley writing for Microsoft Watch reports that Microsoft is expected to play up their Live Communications Server 2005 "...as a key piece of its quest to conquer the telephony market." Mary reports that

Microsoft also will use LCS 2005 as a way to gain a toehold in the voice-over-IP (VOIP) space, according to sources claiming familiarity with the company's plans.

In 2006 who will your phone company be? SBC? AT&T? or Microsoft?