Lucent Technologies PARTNER Advanced Communications System Programming And Use Instructions page 60

Programming
The third option is not applicable as a backup answering feature; however,
it is useful for making brief announcements such as temporary closings or
hours of business.
Direct Extension Dial. Useful for routing outside callers directly to a
specific extension or Hunt Group. When activated, this feature answers
incoming calls after a specified number of rings and plays a customized
message prompting the caller to dial the digits of the designated extension
or hunt group.
Call Forwarding/Call Follow-Me. Useful when a receptionist leaves the
desk for any period of time. Calls can be forwarded to a backup answering
extension.
Call Coverage. Useful when users are unable to answer their calls and
want them answered by someone else.
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