McDewey

C H A P T E R 8 Configure Mobile and Remote Access • Mobile and Remote Access Overview, on page 69 • Mobile and Remote Access Prerequisites, on page 71 • Mobile and Remote Access Configuration Task Flow, on page 72 • MRA Failover with Lightweight Keepalives, on page 78 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 Webex integration and Service Provider offerings • Gateway and interoperability services: media and signaling normalization, and support for non-standard endpoints Feature Configuration Guide for Cisco Unified Communications Manager, Release 15 and SUs 69