AT&T MERLIN LEGEND Installation & Maintenance Manual page 685

Abbreviations
hands-free unit
HFU
Intercom
ICOM
input/output
I/O
in-range out-of-
IROB
building
Integrated Solution II
IS II
Integrated Services
ISDN
Digital Network
Integrated Voice
IVP
Power Automated
Attendant
kilobits per second
kbps
local area network
LAN
listed directory
LDN
number
light-emitting diode
LED
loop-start
LS
megabits per second
Mbps
multibutton electronic
MET
telephones
Multi-Function Module
MFM
management
MIS
information system
modulator-
modem
demodulator
Music-on-Hold
MOH
National Service
NSAC
Assistance Center
off-premises
OPT
telephone
off-premises extension
OPX
private branch
PBX
exchange
personal computer
PC
price element code
PEC
power failure transfer
PFT
primary rate interface
PRI
queued call console
QCC
random access
RAM
memory
robbed-bit signaling
RBS
ABB-2 Abbreviations
System Access
SA
Supplemental Alert
SAA
Adapter
Station Message
SMDR
Detail Recording
System Programming
SPM
and Maintenance
Switched Services
SSN
Network
tip and ring
T/R
time-division multiplex
TDM
terminal equipment
TEI
identifier
touch-tone receiver
TTR
Universal Paging
UPAM
Access Module
uninterruptible power
UPS
supply
volt-ampere
VA
Volts AC
VAC
voice messaging
VMI
interface
voice terminal
V.T.
wide area
WATS
telecommunications
service
zero code
ZCS
suppression