The user experience during the deployment of Communicator Web Access (2007 R2 release) is not different from the Communicator Web Access (2005 release). If you direct all Communicator Web Access connections to the Communicator Web Access (2007 R2 release), a properly configured Communicator Web Access (2007 R2 release) server redirects Communicator Web Access (2005 release) users to the Communicator Web Access (2005 release) server where the user is prompted to log on again. Live Communications Server users do not have access to any of the new Communicator Web Access (2007 R2 release) features, but they have full access to all legacy features.