Comment posted by Art Rosenberg, on September 04, 2007

Marty, Good job! I am glad to see you putting implementation "meat on the bones" of UC concepts. I would like to suggest including some more UC "layering" on top of what you have done so far. Since VoIP and IP telephony facilitates the use of hosted and managed services, as opposed to CPE, those are cost options that could be exploited further for UC implementation, especially for mobile users who will be benefiting the most from UC capabilities. (I realize you are comparing apples-to-apples at this point.) An important application area for both VoIP and UC capabilities covers customer contact activities, because that's where revenue comes from. From an enterprise end-user perspective, however, UC capabilities will be required for customer-facing "agents" and "experts." The latter could also fall into the category of mobile users, who have other requirements for UC. Since you correctly addressed UC migration from a selective implementation perspective, I think the two considerations I mentioned will help put implementation costs in a practical perspective. Respectfully, Art Rosenberg The Unified-View