The Avaya Aura® Communication Manager is a comprehensive software foundation for real-time voice and video communications. More than 700 services for unified communications, including mobility, contact center, messaging, auto attendant, advanced conference calling and E911. The Avaya Aura® Communication Manager is a key component of Avaya Aura, Avaya's architecture for next generation and people-centric collaboration. It delivers rich voice and video capabilities and provides for a resilient, distributed network of media gateways and analog, digital and IP-based communication devices. In addition, Communication Manager boasts robust PBX features, high reliability and scalability and multiprotocol support. This open, extensible IP telephony platform can be deployed as an IP PBX or feature server supporting a SIP-only environment, or as an evolution server supporting both SIP and non-SIP environments. Communication Manager provides 700+ PBX features, high reliability and scalability and advanced features for productivity and mobility. Built-in capabilities include conferencing and contact center applications. Wide range of servers, gateways and analog, digital and IP-based communication devices is supported.