We have one Unity 4.0(4) server running Windows 2000 Server, connected to our Exchange 2003 server in a Windows 2003 R2 domain. I ordered and received a new Unity 7.0 server. Can I "migrate" the 4.0(4) Unity installation to the new server directly, or do I have to conduct a phased migration with upgrades to 4.0(4) to achieve this? I am bogged down in that vast amount of documentation that is on the Cisco site and need a little bit of a process roadmap. Any thoughts would be helpful.