I stumbled across an interesting article on how VoIP saves companies money. One of the paragraphs on page 3 specifically calls out unified messaging- the ability to manage voices, email and fax messages from one location. It also goes on to talk about our upcoming foray into this area with the release of Office Communications Server 2007, Office Communicator 2007 and our line of VoIP devices. According to the article there is a a down side to the potential savings, namely the cost of the initial implementation or the length of time to fix problems if the system goes down. If we're looking to potentially ustilise existing network infrastructure, end-user devices and existing server hardware all backed up by MOM then I wonder how much we'll be affected by the normal downsides?