I just don't understand how anybody can possibl think VoIP is business ready yet. It patently isn't. It's unreliable, it's got lag, the suppliers are all, frankly, rather low-rent.
It's a nice idea, and it will undoubtedly get there. But there's a long way to go yet for a number of reasons, including those above, but also the whole net nutrality debate which threatens to knock the whole VoIP debate into a cocked hat. What happens if the VoIp vendors have to start laying their own networks - Doh!, yeh, costs go through the roof and you end up with a poor service costing you considerably more than fixed line services.
It's all too early for this. It's good to see vendors dipping their size tens in the water and causing ripples of excitement. But that's where convergance should stay for now - on press releases and on the mighty el reg. It certainly doesn't belong in the office, not yet anyway.