Lucent Technologies Definity Audix System Pocket Reference page 52

DEFINITY AUDIX System Release 4.0
System Description Pocket Reference 585-300-214
Abbreviations
CPU
central processing unit
CSI
called subscriber information
CTS
clear to send
D
DAC
dial access code
DC
direct current
DCE
data communications equipment
DCIU
data communications interface unit
DCP
digital communications protocol
DCS
distributed communications system
DID
direct inward dialing
DIP
data interface process
DMA
direct memory access
DNIS
dialed number identification service
DOSS
Delivery Operations Support System
DS
display set
DSP
digital signal processor
DSU
data service unit
DTE
data terminal equipment
DTMF
dual tone multifrequency
DTR
data terminal ready
E
EIA
Electronic Industries Association
ESD
electrostatic discharge
ESS
electronic switching system
F
F
Fahrenheit
FIFO
first-in first-out
FOOS
facility out of service
FPROM
flash programmable read-only memory
Issue 1
May 1999
AB-2