http://blogs.technet.com/mjimenez/archive/2007/07/28/office-communications-server-2007-and-office-communicator-rtm-today.aspxOffice Communications Server 2007 and Office Communicator have officially released to manufacturing (RTM) today. This is a big milestone and a big part of Microsoft's unified communications strategy because OCS 2007 improves on the great feature set alreadyen-USCommunityServer 2.1 SP1 (Build: 61025.2)