Transport Layer Security (TLS) is a public-key encryption cryptographic protocol that helps secure a communication channel. Avaya Contact Center – Extended Capacity uses the TLS protocol to secure data transmitted over HTTPS and SIP connections between contact center servers and components, such as the Routing Core Server, Configuration Server, Application Enablement Services, and supported SIP endpoints.

The contact center also uses the TLS protocol to secure the connection between Routing Core Server and Configuration Server instances in different data centers. To establish a secure connection between contact center components using TLS, the system administrator must install the required identity and trusted Certificate Authority (CA) certificates. For more information about the server and trusted CA certificate installation, see the Routing Core installation section in Deploying Avaya Contact Center – Extended Capacity.

Contact center components use the TLS private keys to establish a secured connection. After the connection is established, servers and endpoints generate TLS session keys that are unique for each session.

You can configure the TLS version for AE Services and Avaya Call Management System. For more information about TLS version configuration for AE Services, see the network configuration section in Administering Application Enablement Services for Avaya Contact Center – Extended Capacity and Administering Avaya Aura® Application Enablement Services. For more information about TLS version configuration for Call Management System, see the Call Management System documentation at https://support.avaya.com/.