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This page will list definitions of common terms used within and about Exchange 2007.
Client Access Server Role (CAS)
Cluster Continuous Replication (CCR)
Edge Transport Role (Edge)
Exchange ActiveSync (EAS)
Exchange Management Console ("the console")
Exchange Management Shell (EMS, or "the shell")
Hub Transport Role (Hub)
Local Continuous Replication (LCR)
Outlook Anywhere (formerly RPC/HTTP)
Outlook Web Access (OWA)
Outlook Voice Access (OVA)
Server roles allow for each of the discrete functions of Exchange to be broken out into multiple services and thus servers. However a single server can run four of the roles (Mailbox, Client Access, Hub Transport, and UM) at once though this is only advisable
in smaller scenarios. The roles are Hub Transport, Client Access, Edge Transport, Mailbox, and Unified Messaging.
Single Copy Cluster (SCC)
Standby Continuous Replication (SCR)
Unified Messaging Role
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