Meeting Exchange elements are GR-unaware. All communications except for WebLM are initiated from System Manager to Meeting Exchange. For licensing, a WebLM client on Meeting Exchange initiates communication with System Manager. For Meeting Exchange configuration, the data on System Manager is stored in the form of a Binary Large Object (BLOB) and synchronized with the element by using a scheduler job that runs every minute. The Meeting Exchange element is registered with System Manager. As these entities are replicated from the primary to the secondary server, information about the Meeting Exchange elements is present with the secondary System Manager server as well. You do not have to explicitly establish trust between the Meeting Exchange element and System Manager.