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The following graphic depicts the Avaya Aura® architecture and various components of Avaya Aura®.
A standard Avaya Aura® architecture consists the following core components: System Manager, Session Manager, Communication Manager, Application Enablement Services, and Presence Services.
Session Manager provides core SIP routing and integration services that provides communication between SIP-enabled entities, for example, PBXs, SIP proxies, gateways, adjuncts, trunks, and applications across the enterprise. Session Manager uses centralized, policy-based routing to provide integration services. Session Manager sends and receives SIP notifications and SIP Publish messages to and from various endpoints and Presence Services. Configuration of Session Manager is performed from System Manager.
Endpoints registered to Session Manager use Communication Manager Evolution Server for feature support. Endpoints that use H.323 protocol register to Communication Manager over IP. Digital and analog endpoints are directly connected to their respective digital and analog media modules on a Branch Gateway, for example, G450.
Application Enablement Services is a software platform that leverages the capabilities of Avaya Aura® Communication Manager to corporate applications.
By using Application Enablement Services, the Application Enablement Services Collector component within Presence Services allows Presence Services to report telephony presence from Communication Manager endpoints. The Application Enablement Services collector collects Presence from H323, DCP, analog, and SIP telephones administered as OPTIM extensions.
Presence Services collects, aggregates, and publishes presence information from and to multiple sources and clients.
System Manager provides a common console to manage the Avaya Aura® applications. System Manager also helps in bulk import and export of users, including user profiles and global settings such as public contacts lists, shared addresses, and presence access control lists.