Microsoft Office Communications Server 2007, formerly called Live Communications Server, delivers streamlined communications to help you find and communicate with the right person, in real time, from the applications you use most - like Microsoft Outlook messaging and collaboration client. Without expensive infrastructure and network upgrades, your organization can deliver these benefits on an extensible VoIP foundation. At the same time, your IT department can deliver these enhanced capabilities and provide operational control alongside your existing Exchange and Active Directory infrastructure. MICROSOFT OPEN LICENSE BUSINESS Microsoft Open License is a software volume licensing program designed for corporate, government, charity, and academic customers who order as few as five licenses. After the initial order, customers can benefit from volume pricing for all licenses for the remainder of the term of their Open License authorization number. Open License Business offers savings on estimated retail prices by placing an initial order for five or more licenses or one server processor license. With Open License Business, customers can combine any set of Microsoft products to qualify for the five-license minimum.