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DEFINITY Enterprise Communications Server Release 8.2
Upgrades and Additions for R8r
555-233-115
Issue 1
April 2000
Glossary and Abbreviations
GL-19
domain-controlled station
A station for which a
Third_Party_Domain_Control
request has been accepted. A
domain-controlled station provides event reports for calls that are alerting, connected, or held at
the station.
domain-controlled station on a call
A station that is active on a call, and which provides event reports over one or two domain-control
associations.
DOSS
Delivery Operations Support System
DOT
Duplication Option Terminal
DPM
Dial Plan Manager
DPR
Dual-port RAM
DS1
Digital Signal Level 1
DS1C
Digital Signal Level-1 protocol C
DS1 CONV
Digital Signal Level-1 converter
DSI
Digital signal interface
DSU
Data service unit
DTDM
Digital-terminal data module
DTE
Data-terminal equipment
DTGS
Direct Trunk Group Select
DTMF
Dual-tone multifrequency
DTS
Disk-tape system
duplicated common control
Two processors ensuring continuous operation of a communications system. While one processor
is online, the other functions as a backup. The backup processor goes online periodically or when
a problem occurs.
duplication
The use of redundant components to improve availability. When a duplicated subsystem fails, its
backup redundant system automatically takes over.