Avaya Call Management System Overview and Specification

Change history

Last Updated : Sep 01, 2025 |

Prolog information

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The following table summarizes the changes in this document for Release 21.x:

Issue	Date	Summary of changes
4	June 2025	Updated New in this release to include features introduced in version 21.0.2.
3	November 2024	Corrected the total trunk capacity for Avaya Aura® Call Center Elite to 30000.
2	November 2024	Revised and reorganized the overview content and feature descriptions for clarity. Updated Capacity and scalability specifications and clarified system-wide and maximum capacity tables.
1	June 2024	Updated New in this release. Revised CMS feature summary with new information. Updated interoperability details. Edited Supported upgrade scenarios and added release-specific information. Removed capacity specifications for hardware-only deployments and performed minor edits in Capacity and scalability specifications. Updated Security specifications for clarity. Added certificate information under Certificates for secure communication.

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