When you get the money, you get the power. When you get the power, you get the woman. When you get the data, you get the voice. When you get the voice, you get the power. A war is brewing inside corporations.
Most companies have telecom staffs separated along the lines of voice and data.
Convergence is blurring these lines and presents an opportunity for one of these groups to expand into the other's territory - not only to get a piece of the action, but also to take control. Now it's time to siphon off the internal voice traffic to the data network. The justification is obviously the economic one your equipment vendors are always emphasizing. Let them help you with the business case. Finally, if you want it, you can make a deal with a service provider that can transport your external voice traffic via its data network with a connection to the public switched telephone network for termination to any location around the globe.