You will be automatically enrolled in Medicare Parts A and B effective the month you turn 65. If you do not receive Social Security benefits, then you will need to sign up for Medicare by calling the Social Security Administration at 800-772-1213 or online at http://www.socialsecurity.gov/medicareonly/ .
The Client Access Server (CAS) is installed by default. Plan to have a Client Access server in each site that has an Exchange 2010 mailbox server. Your main clients will probably be desktop machines running Microsoft Outlook. Other client types include POP3, IMAP4, Exchange ActiveSync, Web, and Outlook Anywhere.
Both Standard and Enterprise CALs can be used with either server edition, but the Enterprise CALs can be used only in conjunction with Standard CALs to access certain Exchange Server features. For more information, see the Licensing section below.xchange Server is email and personal information management software that runs on Windows Server. It provides a collaboration environment for secure messaging inside and outside a charity or an organization.