NEC DS1000 Product Description page 122

Glossary
Camp-on
Central Office Calls
Check Key
Circular Hunting
Class of Service
Conference
Date and Time
Delayed Ringing
114 Section 5: Glossary
Allows an extension user to wait in line without hanging up for a busy
extension to become free.
Reference: Call Waiting / Camp-On on page 31.
Call placed or answered on trunks provided by the connected telephone
company (telco).
Central Office Calls, Answering on page 34 and Central
Reference:
Office Calls, Placing on page 35.
A unique key on a display telephone that allows the user to check key
assignments and Personal Speed Dial programmed entries.
Check Key on page 36.
Reference:
A type of Extension Hunting in which a call unanswered at a member
extension rings the next extension in the hunt group and, if unanswered,
continues to cycle through all the members of the group (until it is
answered or abandoned). See also Terminal Hunting on page 126 and
Uniform Call Distribution (UCD) Hunting on page 127 of this glossary.
Reference: Extension Hunting on page 47.
A table of feature and dialing options that can be customized and
assigned to individual or multiple extensions. The system has 15 unique,
customizable Class of Service tables.
Reference: Class of Service on page 36.
A facility that allows an extension user to add multiple inside or outside
callers into an existing telephone conversation.
Conference on page 39.
Reference:
See Time and Date on page 126 in this glossary.
Allows a call to immediately flash a line or Call Coverage key and then
ring after a programmed delay.
Delayed Ringing on page 39.
Reference:
DS1000/2000 Product Description