Communication Manager overview

Last Updated : Jul 04, 2026 |
Prolog information
Avaya Aura® Communication Manager is the open, highly-reliable, and extensible IP Telephony foundation on which Avaya delivers intelligent communications to large and small enterprises. Communication Manager can scale from less than 100 users to 41,000 users on a single system.
Communication Manager is a core component of the Avaya Aura® platform and the foundation for delivering real-time voice, video, messaging, mobility, and other services. Communication Manager software is part of all the Avaya Aura® editions. This software is available with a single-user licensing fee.
Communication Manager provides centralized call control for a distributed network of gateways and a wide range of analog, digital, and IP-based communication devices. Communication Manager has several built-in mobility applications, call center features, advanced conference calling, and E911 capabilities.
With support for SIP, H.323, and other industry-standard communication protocols, Communication Manager provides centralized voice mail and attendant operations to organizations and call centers across multiple locations.
Note:
From Avaya Aura® Communication Manager Release 10.1 SMI page will have the following options but are for future use:
  • Administration > Licensing > Feature Administration > Current Settings > Display > Optional Features > Clustering
  • Administration > Server (Maintenance) > Server Configuration > Configure Memory (for LSP) > This Server’s Memory Setting > X- Large/Array
Note:
  • From Avaya Aura® Communication Manager R10.3, Communication Manager SAT will have node-names fqdn option for the future use.