The MRA solution supports a hybrid on-premises and cloud-based service model, providing a consistent experience inside and Logon, provisioning, configuration, directory, Visual Voicemail Session establishment – Register, Invite etc. The following table lists the protocols and associated services used in the Unified Communications solution. If used, IM and Presence Service and/or Unity Connection are similarly configured as specified in the relevant Cisco Unified Communications Manager Configuration Guides. Unified CM and IM and Presence Service are configured as specified in the configuration and management guides for your version, at Cisco Unified Communications Manager Configuration Guides. This guide assumes that you have already set up theĪ basic Expressway-C and Expressway-E configuration, as specified in the Expressway Basic Configuration Deployment Guide (The document describes the networking options for deploying Expressway-E in the DMZ.) The solutionĬan optionally include the IM and Presence Service and Unity Connection. The Expressway-C and the mobile endpoint.Īny MRA solution requires Expressway and Unified CM, with MRA-compatible soft clients and/or fixed endpoints. Media traverses the Expressway solution, which relays the media between the endpoints directly. Signaling traverses, the Expressway solution between the Unified CM provides call control for both mobile and on-premise endpoints. Typical Call Flow - Signaling and Media Paths ![]() Third-party SIP or H.323 devices can register to the Expressway-C and, if necessary, interoperate with Unified CM-registered devices over a SIP trunk.įigure 2. Unified Communications: Mobile and Remote Access Gateway and interoperability services: media and signaling normalization, and support for nonstandard endpointsįigure 1. Security: secure business-to-business communicationsĬloud services: enterprise grade flexibility and scalable solutions providing rich Cisco Webex integration and service provider offerings Off-premises access: a consistent experience outside the network for Jabber and EX/MX/SX Series clients The MRA solution provides the following functions: The Expressway provides secure firewall traversal and line-side support MRA allowsĮndpoints such as Cisco Jabber to have their registration, call control, provisioning, messaging, and presence services provided by Cisco Unified Communications Manager ( Unified CM) when the endpoint is outside the enterprise network. ![]() Cisco Unified Communications Mobile and Remote Access (MRA) is part of the Cisco Collaboration Edge Architecture.
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