• Supported Operating Systems: Windows Server 2008; Windows Server 2008 R2; Windows Vista

• Operating System for Installing Management Tools: The 64-bit editions of Windows Vista® SP2 or later, or Windows Server® 2008 SP2.
• PC: x64 architecture-based computer with Intel processor that supports Intel 64 architecture (formerly known as Intel EM64T) or AMD processor that supports the AMD64 platform.

نیازمندی های اضافی

• Memory – Minimum of 4 gigabytes (GB) of RAM per server plus 5 megabytes (MB) of RAM recommended for each mailbox
• Disk space
  • At least 1.2 GB on the drive used for installation
  • An additional 500 MB of available disk space for each Unified Messaging (UM) language pack that you plan to install
  • 200 MB of available disk space on the system drive
• Drive – DVD-ROM drive, local or network accessible
• File format – Disk partitions formatted as NTFS filing systems
• Monitor – Screen resolution 800 x 600 pixels or higher