Glossary
DS1000/2000 Product Description Section 5: Glossary ◆ 137
5
Background Music
The music that plays over the telephone speakers while the phone is idle.
Background Music requires a customer-provided music source that is
connected to the telephone system.
Reference: Background Music on page 32.
Backup
See
System Programming Backup and Restore on page 151
in this glos-
sary.
Barge In
The capability of an extension to join an existing conversation without
being invited. This feature is usually invoked only in emergency or prior-
ity situations.
Reference: Barge In (Intrusion) on page 33.
Battery Backup
The capability of the system to use its internal battery to back up system
memory and the date and time. The battery typically holds memory and
date and time for 10-14 days.
Reference: Battery Backup on page 33.
Call Coverage Keys
A type of Programmable Function Key, assigned to a particular (i.e.,
covered) extension, that provides:
• A Busy Lamp Field for the covered extension which shows on-hook
(idle), off-hook (busy), Do Not Disturb, and ringing status of that
extension.
• One button intercept of calls ringing the covered extension.
• One button Intercom calling to the covered extension while it is idle.
Reference: Call Coverage Keys on page 34.
Call Forwarding
Permits an extension user to redirect their calls to another extension.
Reference: Call Forwarding on page 35.
Call Forwarding Off
Premise
A keyset user can forward their calls to their home office or cell phone.
Reference: Call Forwarding Off Premise on page 36.
Call Timer
A telephone display application that allows the keyset user to time their
trunk calls.
Reference: Call Timer on page 37.
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