A High Availability Avaya Messaging system can be scaled up to how many users?

A High Availability Avaya Messaging system is designed to support a large number of users. The system can be scaled up to support40,000 users, providing robust performance and reliability for enterprises with extensive communication needs.

References: This information is based on Avaya’s official support documents and product specifications, which detail the scalability options for Avaya Messaging in a High Availability configuration1.