Glossary

Issue 2 December 1995 GL-5

C
call-answer
An INTUITY AUDIX feature that allows the system to answer a call and record a message when
the subscriber is unavailable. Callers may be redirected to the system through the call coverage
or call forwarding switch features. Subscribers may record a per sonal gre eting for these callers.
callback number
In AMIS analog networking, the telephone number transmitted to the re cipient machine to be
used in returning voice mail messages that cannot be delivered.
call coverage
A switch feature that defines a preselected path for calls to follow if the first (or second) coverage
points are not answered. The INTUITY system may be placed at the end of a coverage path to
handle redirected calls through call coverage, send all calls, go to cover, etc.
call-distribution group
The set of analog port cards on the switch that connects subscribers and users to the INTUITY
system by distributing new calls to idle ports. This group (or split) is called automatic call distribu-
tion (ACD) on System 85, Generic 2, and Generic 3 and uniform call distribution (UCD) on System
75, Generic 1, and Generic 3. See also

automatic call distribution

and

uniform call distribution

.
call vectoring
A System 85 R2V4, Generic 2, and Generic 3 feature that uses a vector (switch program), allow-
ing a switch administrator to customize the behavior of calls sent to an automatic call distribution
(ACD) group.
card cage
An area within the INTUITY hardware platform that contains and secures all of the standard and
optional circuit cards used in the system.
cartridge tape drive
A high-capacity data storage/retrieval device that can be used to transfer large amounts of infor-
mation onto high-density magnetic cartridge tape based on a predetermined format. This tape is
to be removed from the system and stored as a backup.
central office (CO)
An office or location in which large telecommunication machines such as telephone switches and
network access facilities are maintained. In a CO, private customer lines are terminated and con-
nected to the public network through common carriers.
central processing unit (CPU)
The component of the computer that manipulates data and processes instructions coming from
software.
channel capacity
A measure of the maximum bit rate through a channel.
class of service (COS)
The standard set of INTUITY AUDIX features given to subscribers when they are first adminis-
tered (set up with a voice mailbox).
clear to send (CTS)
Located on Pin 5 of the 25-conductor RS-232 interface, CTS is used in the transfer of data
between the computer and a serial device.