Which components are considered essential in Avaya Aura architecture?

The essential components in Avaya Aura architecture are Avaya Aura Session Manager and Avaya Aura Communication Manager. The Session Manager acts as the routing and management element for all communication sessions, enabling seamless call control and the integration of various communication endpoints. It is crucial for managing the signaling and connection of voice and other communication streams.

On the other hand, the Communication Manager is the core telephony server that provides call processing, feature sets, and session management capabilities. Together, these components form the backbone of the Avaya communication infrastructure, supporting advanced features such as unified communications and providing a scalable solution for organizations.

The other options include components that either serve different roles or may not be fundamental to the core architecture. For instance, the Architecture Manager and Collaboration Tools primarily focus on enhancing user experience and collaboration features rather than core telephony functionality. Similarly, components like User Manager and Cloud Services present additional functionality but are not fundamental to the core architecture. The Session Controller and Database Server also play specific roles but do not encompass the same core capabilities as the Session Manager and Communication Manager, making them less essential in the primary structure of Avaya Aura.