<A target="_blank" href="http://www.prweb.com/releases/2008/11/prweb1639054.htm">Ferris Research announced the results</A> of a study examining the costs of Microsoft's unified communications offering. Costs for small businesses can run as high as $180 per user per month negating any return on the investment. The white paper details costs for organizations with 50, 500 or 5000 staff in deploying and maintaining Microsoft's Microsoft Exchange Server 2007, Microsoft Office Communications Server 2007 and a third-party PBX system.