The most common applications for recorded announcement include when:
Direct Inward Dialed (DID) calls cannot be completed as dialed.
Incoming private-network access calls cannot be completed as dialed.
Calls enter a split or skill (first announcement).
Direct Department Calling, Uniform Call Distribution, or Direct-Agent calls have been in queue for an assigned interval.
ACD and Call Vectoring calls have been in queue for an assigned interval.
A call destination is a recorded-announcement extension.
A call routes to a vector that contains an announcement step.
An announcement extension is specified as a coverage point.
An announcement is the incoming destination of a trunk group.
A VDN of Origin Announcement (VOA) occurs.
A Security violation notification occurs.
The Hospitality Automatic Wakeup feature is in use.