Ah, if only life were so easy.
As our article, The Five Biggest VoIP 'Gotchas' shows, deploying VoIP can be a tricky business. And many of these 'gotchas' are things you'd never think about.
Take user training. User training for a telephone? When it comes to VoIP, that's vital. VoIP has so many bells and whistles, many of them buried so deep, that you'll need to train people how to use the system.
And who's in charge of the system? Your voice people? Your data people? Both? Neither? That's another non-obvious problem you'll need to solve.