Story here in VoIP for SMB.
Check out the patents Microsoft has. Maybe I'm missing something, but it looks like you can patent anything you like in the US. The fact that MS is suing Alcatelucent on patent grounds is worrying because they've now patented RSS. Betanews quotes Don Dodge, Microsoft's director of emerging business as saying Redmond's action is defensive and the patent won't ever be enforced, but... the Alcatelucent suit seems to say otherwise.
#