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
Direct Current
Data Communications Equipment
Digital Communications Protocol
Distributed Communications System
Direct Department Calling
Direct Distance Dialed
Direct Inward Dialed
Data Line Circuit
Data Line Data Module
Digital Multiplexed Interface
Do Not Disturb
Dialed Number Identification Service
Direct Outward Dialed
Delivery Operations Support System
Data Services Level 1
Data Service Unit
Digital Terminal Data Module
Data Terminal Equipment
Direct Trunk Group Select
Dual Tone Multifrequency
Direct Extension Selection
Ear and Mouth (Receive and Transmit)
Extended Binary Coded Decimal Interexchange Code
Expansion Interface
Electronic Industries Associaton
Electro-Magnetic Interference
Expansion Port Network
Erasable Programmable Read Only Memory
Enhanced Private Switched Communications Services
Extended Superframe Format
Electronic Tandem Network
Feature Access Code
Facility Associated Signaling
Federal Communications Commission
Facility Interface Codes
Foreign Numbering Plan Area
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							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 Management
International Direct Distance Dialing
Information Element
Initialization and Administration System
ISDN Network Service
Inward Wide Area Telephone Service
Integrated Services Digital Network
Information Systems Network
Inter-Exchange Carrier Code
Kilo-Bits Per Second
Local Area Network
Link Access Procedure D
Local Access and Transport Area
Listed Directory Number
Light-Emitting Diode
Local Storage Unite
Leave Word Calling
Message Associated User-to-User Signaling
Memory Bus
Mega-Bits Per Second
Multi-Carrier Cabinet
Message Center Service
Modular Data Module
Message Detail Record
Multibutton Electronic Telephone
Management Information System
Miscellaneous Identification
Message Oriented Signaling
Message Server
Message Servicing Adjunct
Modular Processor Data Module
Modular Trunk Data Module
Maintenance Tape Processor
Message Waiting Lamp
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							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 Extension
Network Sharing Unit
Public Network Office Code
Operator Assisted
Outbound Call Management
Off-Premises Station
Oldest Queued Time
Occupational Safety and Health Act
Outgoing Trunk Queuing
Private Branch Exchange
Personal Computer
Personal Central Office Line
Personal Central Office Line Group
Pulse Code Modulated
Permanent Switched Calls
Processor Data Module
Premises Distribution System
Partitioned Group Number
Processor Interface
ProcessorInterface Board
Private Line
Property Management System
Port Network
Processor Port Network
Primary Rate Interface
Premises Service Consultant
Packet Switch Public Data Network
Personal Terminal
Random Access Memory
Restricted Call List
Remote Home Numbering Plan Area
Release Link Trunk
Private Network Office Code
Read Only Memory
Routing Plan Number
Regional Support Center
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							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
Star-based Local Area Network
Step-by-Step
Trunk Answer From Any Station
Trunk Access Code
Traveling Class Mark
Trunk Data Module
Terminating Extension Group
Time of Day
Task Oriented Protocol
Technical Service Center
Touch-Tone Receiver
Tandem Tie Trunk Network
Teletypewriter
Usage Allocation Plan
Uniform Call Distribution
Unrestricted Call List
Uniform Dial Plan
Uniform Numbering Plan
Uninterruptible Power Supply
Vector Directory Number
Wide Area Telecommunications Service
10-5 
						

							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 group in a system where ACD has been optioned by
the customer and the hunt group has been administered as used for ACD. ACD Splits
are capable of being measured (data conceming the split and its members’ status will be
sent to the CMS).
Adjunct
Any processor connected to the switch and capable of controlling certain functionalities.
Adjunct-Controlled Split
An ACD split that is administered to be under adjunct control. Login to such a split is
under adjunct control. When an ACD agent is logged into an adjunct-controlled split, the
ACD agent’s voice set is locked.
Administer
To access and change the parameters associated with the services or features of the
system.
Administered Connection
An end-to-end connection between two access endpoints or two data modules that is
automatically established whenever the system is restarted or the administered connec-
tion is administered and the administered connection is due to be active.
Agent
An agent is a member of a hunt group. The term “ACD agent” is used to specify that the
hunt group in question is an ACD split.
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							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 sending answer supervision so that the ACD owner/operator
or caller can avoid excessive toll charges. Call vectoring commands work in a similar
manner; several steps behave differently depending on whether answer supervision has
been supplied. The call vectoring commands that most notably affect or depend upon
answer supervision are the announcement, busy, disconnect, and wait commands.
Appearance
See Call Appearance.
Applications Processor
A minicomputer used to support several user-controlled applications such as traffic
analysis and electronic documentation.
ARS/AAR Digit Conversion
ARS Digit Conversion replaces the initial digit of a number dialed after the ARS access
code (or of a call crossed over from AAR) with another digit string. The call is then
muted as if the modified digits were dialed after the AAR accesscode. AAR Digit
Conversion reptaces the initial digits of a number dialed after the AAR access code with
another digit string. The call is then routed as if the modified digits were dialed after the
AAR access code.
ASAI Adjunct
Any adjunct that makes use of the ASAI (Adjunct/Switch Application Interface) protocol,
including adjuncts that perform Inbound Call Management (ICM) functions.
Asynchronous Data Transmission
A scheme for transmitting data where each character is preceded by a start bit and fol-
lowed by a stop bit, permitting data elements to occur at irregular intervals. This type
transmission is advantageous when transmission is not regular (characters typed at a
keyboard).
G-2 
						

							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 and to manage and monitor some of the system operations.
Audio Information Exchange (AUDIX)
A unit that provides voice mail service to users.
Authorization Codes
Authorization Codes have three purposes. First, certain trunk groups that receive incom-
ing calls can be administered to require authorization codes for incoming calls.
Secondly, Remote Access to PBX Services users can be required to enter an authoriza-
tion code instead of, or in addition to, a barrier code when accessing local PBX facilities.
Lastly, they can be used for rerouting ARS/AAR calls that were blocked because the
default FRL was not high enough to continue routing.
Auto-In
Auto-in is an ACD agent work mode that makes the agent available to receive calls and
allows the agent to receive a new ACD call immediately after disconnecting from the pre-
vious call.
Automatic Alternate Routing (AAR)
Used to route calls over altemate private and public network facilities in the order of
preference specified by the customer. The preference order is specified by translating a
group of trunks into a routing pattern that is used for calls to a particular network location.
AAR also provides privilege checking that allows the customer to restrict access to partic-
ular trunk groups to a limited set of users. This is done by comparing the FRL of the cal-
ling party with the FRL of the particular routing pattern entry.
Automatic Call Distribution
Termination of incoming calls to agents that have been administered into hunt groups
called splits. Calls are distributed according to the algorithm selected by the customer,
either UCD or Direct Department Calling (DDC).
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							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 provides for up to eight different user groups having access to their own
or shared trunk groups in ARS patterns.
Automatic Trunk
A trunk that does not require the sending or receiving of digits. The destination is
predetermined. A request for service on the trunk (called a seizure) is sufficient to route
the call. The normal destination of an automatic trunk is the system attendant group.
Automatic Restoration
A service that restores disrupted connections between access endpoints (non-signaling
trunks) and data endpoints (devices that connect the switch to data
terminal communications equipment). This restoration is achieved within seconds of a
service disruption so that critical data applicitions can remain operational.
Auxiliary Work
Auxiliary Work is an ACD agent work mode that makes the agent unavailable to receive
any ACD calls for the specified split. It is used when an agent is performing non-ACD
related activities, such as going on a break
Available Agent
An ACD agent is considered available to receive a call through an ACD split if logged in
and not on a tail, and in the Auto-In or Manual-In mode.
B
Barrier Code
A security code used with the Remote Access feature to prevent unauthorized access to
the system.
Basic Call Management System
The BCMS provides traffic reports for ACD. The reports area subset of the adjunct CMS
applications.
G-4 
						

							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 or 1 ).
Bridge (Bridging)
The appearance of a voice terminal’s extension at one or more other voice terminals.
Bridged Appearance
A call appearance on a voice terminal that matches a call appearance on another voice
terminal for the duration of a call.
Buffer
A circuit or component that isolates one electrical circuit from another.
holds data from one circuit or process until another circuit or process
the data.
Typically, a buffer
is ready to accept
Bus
A multiconductor electrical path used to transfer information over a common connection
from any of several sources to any of several destinations.
Bus, Time Division Multiplex
See Time Division Multiplex Bus.
Business Communications Terminals
An advanced series of semi-intelligent terminals.
Bypass Tie Trunks
One-way, outgoing tie trunks from a tandem switch to a main switch in an ETN. These
trunks, provided in limited quantities, are used as a “last-choice” route when all trunks to
another tandem switch are busy. Bypass tie trunks are used only if all applicable inter-
tandem trunks are busy.
Byte
A sequence of bits, 8 bits long, that is usually shorter than a word. A word is 16 bits
long.
G-5 
						

							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 progress tones and call outcomes (ringing,
busy, answered) and notifying the adjunct responsible for recording the call status. Call
classification may be done by the switch automatically or done by the user listening to
call progress tones.
Call Management System (CMS)
An adjunct processor that collects data from an ACD and generates reports to be stored
or displayed concerning status of agents, splits, and trunks.
Callback Call
A call that is automatically returned to a voice terminal user who activated the Automatic
Callback or Ringback Queuing feature.
Call Vector
A set of up to 15 vector commands to be performed for an incoming or internal call.
Call Vectoring
A flexible call handling method of managing incoming calls that gives unique treatment to
a particular call type based on dialed number or trunk terminating to a vector. Vector
commands dictate the treatment given to callers.
Call Vector Step
Vectors are made up of 15 steps that are processed sequentially unless a “GoTo” vector
command is encountered or vector processing stops.
Call Waiting Ringback Tone
A low-pitched tone identical to the ringback tone except the tone decreases the last 0.2
second. This tone notifies the attendant that the Attendant Call Waiting feature has been
activated and that the called user is aware of the waiting call.
G-6