Abbreviations Glossary - AT&T MERLIN LEGEND System Reference Manual

Abbreviations Glossary

A ampere
AC
alternating current
ACD
automatic call distribution
ACW
After Call Work (CMS)
A M I
alternate mark inversion
amps
amperes
A N I
automatic number identification
A R S
Automatic Route Selection
ASCAP American Society of Composers, Artists, and
Producers
ASI
alternate space inversion
ASN AT&T Switched Network Services
A U D I X
Audio Information Exchange
AVP
AUDIX Voice Power
B8ZS
bipolar 8 zero substitution
BIS
Built-in Speakerphone
BMI
Broadcast Music Incorporated
bits per second
bps
B R I
Basic Rate Interface
BTMI basic telephone modem interface
B T U
British thermal unit
C A S
Call Accounting System for the MERLIN
LEGEND™ Communications System
CAS-B
Call Accounting System — Business
C A S H Call Accounting System — Hospitality
CAT Call Accounting Terminal
CAT-B Call Accounting Terminal/Business
CAT-H Call Accounting Terminal/Hospitality
CCITT
Comitee Consultatif Internationale Telephonique
et Telegraphique
CCS
common channel signaling
CIB
customer information bulletin
CMS Call Management System
ComCode component code
CRC
cyclic redundancy check
CSC
Customer Service Center
CSU channel service unit
dB decibel
D C
direct current
DCE data communications equipment
DCP
Digital Communications Protocol
DFT direct facility termination
DHG data hunt group
DID direct inward dialing
DIP
dual in-line package
DISA Direct Inward System Access
DLC direct-line console
DNIS
Dialed Number Identification Service
DOS Disk Operating System
DSO Digital Signal 0
DS1
Digital Signal 1
DSE
digital-switch element
DSS direct station selector
DTE data terminal equipment
DTMF dual-tone multifrequency
DXS direct extension selector
E&M
ear and mouth (receive and transmit)
EIA
Electronic Industries Association
EMI electromagnetic interference
EPROM
erasable and programmable read-only memory
ES
Extension Status
ESD
electrostatic discharge
ESF extended superframe format
ESS
electronic switching system
ETN
electronic tandem network
ETU
emergency transfer unit
F
Farenheight
FACE Forced Account Code Entry
FCC Federal Communications Commission
FRL Facility Restriction Level
FX
foreign exchange
GPA General Purpose Adapter
GS ground-start
H F A I Hands Free Answer on Intercom
HFU
hands-free unit
Hz hertz
ICOM Intercom
I/O
input/output
IROB in-range out-of-building
I S I I Integrated Solution II
ISDN Integrated Services Digital Network
I V P
Integrated Voice Power
kbps
kilobits per second
KF FCC Classification
LAN
local area network
LDN listed directory number
light-emitting diode
LED
LS loop-start
Mbps megabits per second
MET
multibutton electronic telephone
MFM Multi-Function Module
MIS management information system
MLT analog multiline telephone
MOH Music-on-Hold
ms millisecond
NSAC National Service Assistance Center
OPT off-premises telephone
OPX off-premises extension
PAM pulse amplitude modulation
PBX private branch exchange
PC personal computer
PCM
pulse code modulation
PEC price element code
PFT power failure transfer telephone
Primary Rate Interface
PRI
PSTN public switched telephone network
QCC queued call console
RAM
random access memory
RBS robbed-bit signaling
read-only memory
ROM
SA System Access
SAA Supplemental Alert Adapter
SDN Software Defined Network
Abbreviations Glossary AB-1