Client Enablement Services (CES) provides access to many Avaya Unified Communications (UC) capabilities, including telephony, mobility, messaging, conferencing, and Presence Services through a single application. Avaya one-X® Mobile communicates with the CES server by using the CES protocol. To provide CES services to Avaya one-X® Mobile clients outside the enterprise network, Avaya SBC provides a secure proxy that must be deployed in the enterprise DMZ. Avaya SBC checks all traffic from Avaya one-X® Mobile clients outside the enterprise network to the CES server.

The following sections describe the configuration required to use CES proxy.