Reveals Microsoft's new VoIP strategies: plans backed with multi-billion-dollar investments and worldwide partnerships- Offers detailed guidance for everyone evaluating Microsoft VoIP systems .- Covers enterprise and small-to-midsize business solutions, as well as security and other key issues.- Shares knowledge typically available only through costly consulting or analyst relationships.- By a leading expert who has consulted extensively with Microsoft and many of its top customers. Microsoft is aggressively pursuing leadership in the fast-growing Voice Over Internet Protocol (VoIP) marketplace. Author Joe Schurman is one of the world's top VoIP consultants, and has worked closely with Microsoft and many of its largest partners and customers. Drawing on his experience, Schurman explains how VoIP technology works, introduces each of Microsoft's offerings, and shows how they fit together. Readers will learn how Microsoft Office Communications Server 2007 delivers VoIP, video, instant messaging, and conferencing that integrates with Microsoft Office; how the Communicator 2007 client application brings together telephony, instant messaging, and video communications on PCs, mobile phones, and Web browsers; how Live Meeting services and Microsoft RoundTable hardware provide advanced videoconferencing solutions; and how Microsoft Response Point offers a complete VoIP solution for small businesses. Schurman covers VoIP security in depth; reviews Microsoft's enterprise and small business competitors; previews VoIP's future; and introduces the resources available through the worldwide Microsoft VoIP community.