ATT DEFINITY Communications System Generic 1, Generic 3, System Management Instructions Manual

CHAPTER 10. ABBREVIATIONS AND ACRONYMS
CMDR
CMS
CO
COR
COS
CP
CPE
CPTR
CRC
CSA
CSM
DC
DCE
DCP
DCS
DDC
DDD
DID
DLC
DLDM
DMI
DND
DNIS
DOD
DOSS
DS1
DSU
DTDM
DTE
DTGS
DTMF
DXS
E&M
EBCDIC
EI
EIA
EMI
EPN
EPROM
EPSCS
ESF
ETN
FAC
FAS
FCC
FIC
FNPA
Centralized Message Detail Recorder
Call Management System
Central Office
Class of Restriction
Class of Service
Circuit Pack
Customer-Provided Equipment
Call Progress Tone Receiver
Cyclical Redundancy Checking
Canadian Safety Association
Centralized System Management...

CHAPTER 10. ABBREVIATIONS AND ACRONYMS
FRL
FX
GPTR
GRS
HNPA
IAS
ICC
ICDOS
ICI
ICM
IDDD
IE
INADS
INS
INWATS
ISDN
ISN
IXC
KBPS
LAN
LAPD
LATA
LDN
LED
LSU
LWC
MA-UUI
M-Bus
MBPS
MCC
MCS
MDM
MDR
MET
MIS
MISCID
MOS
MS
MSA
MPDM
MTDM
MTP
MWL
Facility Restriction Level
Foreign Exchange
General Purpose Tone Receiver
Generalized Route Selection
Home Numbering Plan Area Code
Inter-PBX Attendant Service
Inter-Carrier Cable
International Customer-Dialed Operator-Serviced
Incoming Call Identifier
Inbound Call...

CHAPTER 10. ABBREVIATIONS AND ACRONYMS
NANP
NAU
NCOSS
NEC
NFAS
NID
NN
NPA
NPE
NQC
NSE
NSU
NXX
OA
OCM
OPS
OQT
OSHA
OTQ
PBX
PC
PCOL
PCOLG
PCM
PCS
PDM
PDS
PGN
PI
PIB
PL
PMS
PN
PPN
PRI
PSC
PSDN
PT
RAM
RCL
RHNPA
RLT
RNX
ROM
RPN
RSC
North American Numbering Plan
Network Access Unit
Network Control Operations Support Center
National Engineering Center
Non-Facility Associated Signaling
Network Inward Dialing
National Number
Numbering Plan Area
Network Processing Element
Number of Queued Calls
Night Service...

CHAPTER 10. ABBREVIATIONS AND ACRONYMS
SAKI
SAT
SCC
SCI
SCO
SDN
SDDN
SID
SIT
SMDR
SPE
SSI
STARLAN
SXS
TAAS
TAC
TCM
TDM
TEG
TOD
TOP
TSC
TTR
TTTN
TTY
UAP
UCD
UCL
UDP
UNP
UPS
VDN
WATS
Sanity and Control Interface
System Access Terminal
Single Carrier Cabinet
Switch Communications Interface
System Control Office
Software Defined Network
Software Defined Data Network
Station Identification Number
Special Information Tones
Station Message Detail Recording
Switch Processing Element
Standard Serial Interface...

GLOSSARY
GLOSSARY
A
Access Code
A 1-, 2-, or 3-digit dial code used to activate or cancel a feature or access an outgoing
trunk. The star (*) and pound (#) can be used as the first digit of an access code.
Access Endpoint
Either a non-signaling channel on a DS1 interface or a non-signaling port on an Analog
Tie Trunk circuit pack that is assigned a unique extension.
Access Tie Trunks
Tie trunks used to handle normal ETN calls between main and tandem switches.
ACD split
An ACD split is a UCD/DDC hunt...

GLOSSARY
Announcements
Announcements are prerecorded messages that give the caller information. If the first
announcement given to a caller is played before the call is queued to any split, it is a
Forced First Announcement.
Answer-Back Code
A code dialed to retrieve a parked call.
Answer Supervision
Answer supervision is a signal, sent from the switch to the serving CO, that tells the CO
to begin recording toll charges for a call. However, while a call waits in queue, AT&T
ACD software often delays...

GLOSSARY
Asynchronous Data Unit (ADU)
A data communications equipment (DCE)-type device that allows direct connection
between EIA-232-C equipment and the system digital switch.
Attendant
The operator of the attendant console. Individual who handles the processing of various
types of internal, incoming, and outgoing calls. May also manage and monitor some of
the system’s operations.
Attendant Console
An electronic call-handling position with pushbutton control. Used by attendants to
answer and place calls...

GLOSSARY
Automatic Route Selection
Automatic Route Selection provides automatic routing of outgoing calls over customer
trunk facilities with transparent access to an Inter-Exchange Carrier (IXC) based on the
Direct Distance Dialing (DDD) number. Alternate trunk groups are selected during peak
demand periods when the primary trunk groups are busy. The alternate trunk groups are
selected in decreasing order of preference for making the calls.
Automatic Route Selection Partitioning
ARS Partitioning...

GLOSSARY
Bearer Capability Class (BCC)
The Bearer Capability Class (BCC) identifies the type of a call, for example, voice and
different types of data. Determination of BCC is based on the call originator’s charac-
teristics for non-ISDN endpoints and on signaling in the D-channel for ISDN endpoints.
There are five Bearer Capability Classes (0-4), based on voice and data Modes 0, 1, 2, 3
capabilities.
Bit (Binary Digit)
One unit of information in binary notation (having two possible states or values, 0...

GLOSSARY
C
Call Appearance, Attendant Console
Six buttons, labeled a through f, used to originate, receive, and hold calls. Each button
has two associated lamps to show the status of the call appearance.
Call Appearance, Voice Terminal
A button labeled with an extension number used to place outgoing calls, receive incoming
calls, or hold calls. Two lamps next to the button show the status of the call appearance
or status of the call.
Call Classification
The function of receiving and/or detecting call...