The following depicts the Avaya Aura® architecture and various components of Avaya Aura®:

A standard Avaya Aura® architecture consists of the following core components:

• Avaya Aura® System Manager

• Avaya Aura® Session Manager

• Avaya Aura® Communication Manager

• Avaya Aura® Application Enablement Services

• Avaya Aura® Media Server

• Avaya Aura® Presence Services

• Avaya Aura® Device Services

• Avaya Branch Gateway

• Avaya Workplace Client

• Avaya Breeze®

System Manager provides a common console to manage the Avaya Aura® applications. System Manager also enables to bulk import and export users, including user profiles and global settings such as public contacts lists, shared addresses, and presence access control lists.

Session Manager provides core SIP routing and integration services that provide communication between SIP-enabled entities, for example, PBXs, SIP proxies, gateways, adjuncts, trunks, and applications across the enterprise. Session Manager is configured from System Manager and uses centralized, policy-based routing to provide integration services. It also sends and receives SIP notifications and SIP Publish messages to and from various endpoints and Presence Services.

Endpoints registered to Session Manager use Communication Manager 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.

Communication Manager is an extensible, scalable, and secure telephony application that connects to private and public telephone networks, Ethernet LANs, and the Internet. Communication Manager organizes and routes voice, data, image, and video transmissions.

Application Enablement Services is a software platform that leverages the capabilities of Avaya Aura® Communication Manager to enterprise applications. By using Application Enablement Services, the Application Enablement Services Collector component within Presence Services enables 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. 

The Avaya Aura® Media Server delivers advanced multimedia processing features to a broad range of products and applications. Utilizing the latest open standards for media control and media processing, the highly scalable software based solution deploys on standard server hardware, running Linux or Windows operating systems.

Presence Services collects, aggregates, and publishes presence information from and to multiple sources and clients.

Avaya Aura® Device Services provides a set of services for Avaya's next generation of clients. These services include:

• Enterprise login Service: Users can log on to their Avaya device using their Enterprise credential and receive all of the Avaya Aura® services they are entitled to.

• Dynamic Configuration Service: This new configuration service dynamically generates the set of configuration parameters necessary to enable automatic bootstrapping of Avaya soft clients by searching the various Avaya databases, where configuration information is stored, and extracting and presenting relevant information to the Avaya devices.

• Contact Service: This new service simplifies the client experience and provides a standard way of managing, storing and searching users and the enterprise contacts detail, including picture, and making them available across all of the user's devices.

• Web Deployment Service: This service brings mobile phone deployment services to Microsoft Windows and Apple Mac OS environments. When a new device update is available within the customers environment the user is automatically prompted to retrieve this update.

The Avaya Branch Gateway provides a secure, reliable, and scalable platform for the delivery of Avaya Communication Manager-based IP telephony applications. It is targeted to mid to large sized branch offices, medium sized standalone businesses or small campus environments. It can be configured to extend Communication Manager features and applications to branch offices at the edge of the enterprise network. The Branch Gateway can also be configured with an ASP S8300 Server to deliver Communication Manager-based telephony to campus environments.

Avaya Workplace Client is a fully integrated software-based unified communication solution. Avaya Workplace Client is a single, all channel calling, messaging, conferencing and collaboration solution for mobiles, browsers, desktops and room systems.

With Avaya Breeze® Platform you can integrate your existing or new applications with our unified communications technology and contact center capabilities including voice, video, text, and email. Bring rich communication capabilities into the social, mobile, and cloud applications that make your business run.