A quick search on Google for Livemeeting turns up this product called LiveMeeting from a company called LiveWorks. Their products appear to be ruggedized video phone equipment (like that used by embedded reporters in the Iraq war from what I can tell).
There would appear to be some confusion created by the new Microsoft Office/Placeware product called "LiveMeeting" ( or is it "Live Meeting"?). From what I can tell the LiveWorks product predates Microsoft's by quite a while.
Could it be that Microsoft's lawyers didn't really do a very good job in their name search? Or maybe they did and they just don't care?