AT&T DEFINITY 7200 series User Manual
Page 309

ABBREVIATIONS
AB-3
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ETA
extended trunk access
ETN
electronic tandem network
FAX
facsimile
FEP
front end processor
FP8
feature package 8 (for
DIMENSION
)
FRL
facility restriction level
FX
foreign exchange
G1/G2
Generic 1/Generic 2
GPP
general-purpose port
Gbps
billion bits per second
HAC
high accuracy clock
HEHO
head end hop off
IEEE
Institute of Electrical and Electronics Engineers
INADS
Initialization and Administration System
ISDN
Integrated Services Digital Network
ISO
International Standards Organization
IXC
interexchange carrier
kbps
thousand bits per second
LAN
local area network
LDN
listed directory number
LEC
local exchange company
LED
light-emitting diode
LOS
loss of signal
MAAP
Maintenance and Administration Panel
MOS
message-oriented signaling