http://192.168.2.20/blogs/doverton/archive/2007/05/30/microsoft-office-communications-server-2007-public-beta.aspxI just came across this. Should you want to play with our VoIP solution that also integrates into Exchange 2007 then this is for you. Microsoft Office Communications Server 2007 Public Beta Microsoft Office Communications Server 2007 provides users withenCommunityServer 2008.5 SP2 (Build: 40407.4157)