DEFINITY AUDIX System Release 4.0
System Description Pocket Reference
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
FFahrenheit
FIFO
FOOS facility out of service
FPROMflash programmable
Issue 1 May 1999