In Avaya Aura® 8.x, the authentication file is no longer required. The process for using authentication files as described in previous versions (involving steps like transferring and loading the file) is rendered obsolete in the newer release. Thus, the correct statement is that the authentication file is no longer installed because it is no longer needed in Avaya Aura® 8.x.
In Avaya Aura® 7.x, the listening ports for Avaya Aura® Session Manager (SM) to listen for User Agent (UA) registrations are defined in the SIP Entity settings. In this configuration section, you specify the port, protocol, and domain necessary for communication. This ensures proper routing and handling of SIP traffic by the Session Manager.