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DEFINITY AUDIX System Release 4.0
System Description Pocket Reference
585-300-214
Issue 1
May 1999
Abbreviations
AB-2
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
FPROMflash programmable read-only memory