Greetings are pre-recorded messages that are automatically played to callers, when a call goes to voice mail. If you do not customize your greetings, the default Messaging system greetings are played
Personal greeting: This is a standard greeting that is played when your line is busy or when you are unable to pick up the call. You can record a single greeting for all circumstances or one greeting for when your line is busy and another greeting for when you are unable to pick up the call.
Extended Absence Greeting (EAG): You can record an Extended Absence Greeting to let callers know that you will be away from the office and won’t be able to reply quickly to their messages.
Optional greetings: These are greetings that play based on a set of configurable rules. For instance, you can set up optional greetings to play during office hours, to all internal callers who get no answer on your phone.
The Quick Reference Guide for Avaya Aura® Messaging (Aria)
The Quick Reference Guide for Avaya Aura® Messaging (Audix)