You can configure a server with Communication Manager Messaging application installed on it as a Centralized Messaging Server (CMS). As part of the configuration for Centralized Messaging Server you need to define Q.Sig trunks between the host Communication Manager and the remote Communication Manager.
The configuration supports messaging mailboxes on one Communication Manager server (Centralized Messaging Server) and provides voice mail coverage for phones (stations) on a second Communication Manager server (remote server).
To set up the Centralized Messaging Server, you need to add the configuration changes in the form of switch translations by using the System Access Terminal (SAT) on both Communication Manager servers. Centralized Messaging Server supports features such as, Calling Party Number (CPN) and Message Waiting Indicator (MWI).
For more information on configuring a Centralized Messaging Server, refer to the Communication Manager Messaging Installation and Initial Configurationguide.