In Avaya IX Messaging High Availability configurations, the license management is designed to ensure system functionality across all servers. The primary voice server holds the main license and acts as the primary holder, ensuring that the entire system is recognized as a legitimate and functional unit. Mobilink, a synchronization tool, is responsible for copying the license file to all voice servers, which includes the secondary and consolidated servers. This process is crucial for maintaining a consistent and secure licensing state across the high availability setup. The license files on these servers are permanent and do not expire, providing stability and reliability in the system's operation.