IMPORTANT NOTE:  You must buy at least 5 CALS. New orders must also purchase a server license

Also available with Software Assurance

The new capabilities of Microsoft Exchange Server 2007 deliver the advanced protection your company demands, the anywhere access your people want, and the operational efficiency you need.  There is a reason Exchange Server 2007 is the industry's leading server for e-mail, calendaring, and unified messaging.  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.

Microsoft Open Licensing allows the ability to purchase under the same authorization number for two years. Open Business offers volume pricing with only a five minimum license requirement.