The DN (Directory Number) Announcement feature permits callers to determine the DN of the line from which they are calling.
This feature is also useful for service personnel, because it enables them to verify that the correct line pair is assigned to the DN that is expected.
For example, a caller can use this to determine the DN of a telephone in a conference room or reception area.
The subscriber enters an specific access code, a connection is made to an announcement that states the DN of the line from which the call is being made.
Parent topic: Calling Identity Services