Cisco Cisco Expressway Maintenance Manual
Figure 4 Entering subject alternative names for Unified CM registration domains, XMPP federation
domains, and chat node aliases, on the Expressway-E's CSR generator
domains, and chat node aliases, on the Expressway-E's CSR generator
Mobile and Remote Access
This section describes how to configure your Expressway to support Unified Communications Mobile and Remote
Access (MRA).
Access (MRA).
Mobile and Remote Access Overview
Cisco Unified Communications 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 provided by Cisco Unified Communications Manager (Unified CM) when the endpoint is not within
the enterprise network. The Expressway provides secure firewall traversal and line-side support for Unified CM
registrations.
It allows endpoints 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 not within
the enterprise network. The Expressway provides 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
Service Provider offerings
■
Gateway and interoperability services: media and signaling normalization, and support for non-standard
endpoints
endpoints
Figure 5 Unified Communications: mobile and remote access
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Cisco Expressway Administrator Guide
Unified Communications