When using distributed VSN configuration, how many advanced users can an entire Avaya Messaging solution support?

An Avaya Messaging solution deployed in a distributed Voice Server Node (VSN) configuration is designed for high scalability. This architecture consists of one Primary VSN and can be expanded with up to four Secondary VSNs. While an individual VSN server can support a maximum of 20,000 advanced users, the overall architectural limit for the entire distributed solution is capped at 80,000 advanced users. This maximum capacity ensures system stability and performance across the distributed environment.

A. 4,800 advanced users: This number is significantly lower than the capacity of even a single VSN server and does not represent the maximum for a distributed system.

B. 60,000 advanced users: While a configuration of three VSNs could support this number (3 x 20,000), it is not the maximum capacity the entire solution can support.

D. 40,000 advanced users: This represents the capacity of two VSNs (2 x 20,000), but the system can scale beyond this to a higher maximum limit.

1. Avaya Messaging Solution Description (NN43100-111), Release 11.0, June 2019.

Section: Chapter 1: Introduction, "System Capacities"

Reference: The table titled "Avaya Messaging system capacities" explicitly states that for a "Distributed VSN" configuration, the "Maximum number of advanced users" is 80,000.

2. Administering Avaya Messaging (NN43100-701), Release 11.0, June 2019.

Section: Chapter 1: Introduction to Avaya Messaging, "System capacity"

Reference: This section details the system limits, confirming that a distributed system can scale up to 80,000 advanced users, which is the maximum supported limit for the solution.