Hi All I am not familiar with Exchange 2007 at all and I am trying to figure out if I need to use all the cool VOIP features and fax services with exchange 2007 do i have to choose exchange 2007 standard edition or exchange 2007 enterprise edition. I also noticed in the list of the softwares released by MS on november 30 Exchnage 2007 standard edition and Unified Messaging for exchange 2007 Do I really need to purchase UM for exchange 2007 or they are also integrated in exchange 2007 standard and I can choose which server roles to deploy.

This page provides a comparison of the version and CALs.http://www.microsoft.com/exchange/evaluation/editions.mspxThe server versions support all of the features, but they are unlocked by the Exchange client CAL you license.So, for any user you need/want UM you will need to purchase Exchange Enterprise CALs.