Mobile and Remote Access Overview
Unified Communications Manager Mobile and Remote Access is a core part of the Cisco Collaboration Edge Architecture. It allows endpoints such as Cisco Jabber to have their registration, call control, provisioning, messaging, and presence services that are provided by Unified Communications Manager when the endpoint is not within the enterprise network. Cisco Expressway connects the mobile endpoint to the on-premises network, providing secure firewall traversal and line-side support for Unified CM registrations.
The overall solution provides:
Off-premises access: a consistent experience outside the network for Jabber and EX/MX/SX Series clients
Security: secure business-to-business communications
Cloud services: enterprise grade flexibility and scalable solutions providing rich Cisco Webex integration and Service Provider offerings
Gateway and interoperability services: media and signaling normalization, and support for non-standard endpoints
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.
Unified CM provides call control for both mobile and on-premises endpoints.
Signaling traverses the Expressway solution between the mobile endpoint and Unified CM.
Media traverses the Expressway solution and is relayed between endpoints directly; all media is encrypted between the Expressway-C and the mobile endpoint.
Configuring Mobile and Remote Access
To enable Cisco Jabber users with MRA functionality, set up an MRA User Policy within the User Profile Configuration window of Unified Communications Manager. The MRA User Policy is not required for non-Jabber endpoints.
In addition, you must configure Cisco Expressway with Mobile and Remote Access. For details, see Mobile and Remote Access via Cisco Expressway Deployment Guide .