The document summarizes the features of the VCBpro Media Exchange Manager (MXM), which is an open and standards-based H.323 gatekeeper that can support between 10 to 5000 users with up to 500 concurrent calls. It enables deployment of additional multimedia applications and integration with other network components. Key features include device management, directory services, reporting, billing, and tight integration with videoconferencing endpoints, MCUs, and other collaboration applications.