Microsoft Office Communicator 2007 R2 is a unified communications application that helps end users be more productive by enabling them to communicate and collaborate easily with others in different locations or time zones using a range of different communication options, including instant messaging (IM), voice, desktop sharing, and video. Microsoft Office Communicator 2007 R2 is a unified communications client, enhanced with the high quality VoIP platform on Office Communications Server 2007 R2 and equipped to help users achieve new levels of productivity. Users can initiate conversations, conduct live video or audio meetings and share desktop applications with Web-connected colleagues worldwide.