Exchange Server 2007 Enterprise Windows 64 bit on DVD with 25 CALs
The Exchange Server Enterprise CAL is an additive CAL and requires that a
Standard CAL is also purchased for each user or device. The Exchange
Server Enterprise CAL provides access to Unified Messaging and advanced
compliance, as well as Forefront Security for Exchange Server and Exchange
Hosted Filtering for onsite and hosted antivirus and anti-spam protection.
Exchange Server is the industry