DEFINITY ECS Release 8.2
Administrator’s Guide
555-233-506 Issue 1
April 2000
Glossary and abbreviations
1661
V
VAR
Value-added reseller
VDN
See vector directory number (VDN).
vector directory number (VDN)
An extension that provides access to the Vectoring feature on the switch. Vectoring allows a customer to spec-
ify the treatment of incoming calls based on the dialed number.
vector-controlled split
A hunt group or ACD split administered with the vector field enabled. Access to such a split is possible only
by dialing a VDN extension.
VISVoice Information System
VLSI
Very-large-scale integration
VMVoltmeter
VNIVirtual nodepoint identifier
VOA
VDN of origin announcement
voice terminal
A single-line or multiappearance telephone.
W
WATS
See Wide Area Telecommunications Service (WATS).
WCC
World-Class Core
WCR
World-Class Routing
WCTD
World-Class Tone Detection
WFB
Wireless fixed bas e
Wide Area Telecommunications Service (WATS)
A service in the United States that allows calls to certain areas for a flat-rate charge based on expected usage.