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Glossary
Issue 2.0 December 1995 GL-7
central processing unit (CPU)
The component of the computer that manipulates data and processes instructions coming from
software.
channel
A telecommunications transmission path for voice and/or data.
channel capacity
A measure of the maximum bit rate through a channel.
CICS
See
customer information control system
.
class of service (COS)
The standard set of Intuity AUDIX features given to subscribers when they are first administered
(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.
client
A computer that sends, receives and uses data, but that also shares a larger resource whose
function is to do most data storage and processing. For Intuity Message Manager, the
subscriber’s PC running Message Manager is the client. See also
server
.
CMS
See
call management system
.
CNG tone
See
calling tone
.
CO
See
central office
.
COS
See
class of service
.
code excited linear prediction
An analog-to-digital voice coding scheme.
collocated
An Intuity system installed in the same physical location as the host switch. See also
local
installation
.
collocated adjunct
Two or more adjuncts that are serving the same switch (i.e., each has voice port connections to
the switch) or that are serving different switches but can be networked through a direct RS-232
connection due to their proximity.
comcode
AT&T’s numbering system for telecommunications equipment. Each comcode is a nine digit
number that represents a specific piece of hardware, software, or documentation.
command
An instruction or request given by the user to the software to perform a particular function. An
entire command consists of the command name and options. Also, one- or two-key touch tones
that control a mailbox activity or function.