Microsoft Unified Communications home page at http://www.microsoft.com/uc/default.mspx
Microsoft media gateway partners page at http://www.microsoft.com/uc/pdgtrials/default.mspx
Microsoft load balancer partners page at http://office.microsoft.com/en-us/communicationsserver/FX011526591033.aspx#5 (note that the list of partners for Live Communications Server 2005 also applies for Office Communications Server 2007)
3.139.85.170