vector directory number (VDN)
432 Communication Manager Guide to ACD Call Centers
vector directory number
(VDN)
An extension that provides access to the Vectoring feature on the switch. Vectoring
allows a customer to specify 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.
VIS
Voice Information System
VLSI
Very-large-scale integration
VM
Voltmeter
VNI
Virtual nodepoint identifier
voice terminal
A single-line or multiappearance telephone.
WATS
See
Wide Area Telecommunications Service (WATS)
on page 432.
WCC
World-Class Core
WCR
World-Class Routing
WCTD
World-Class Tone Detection
WFB
Wireless fixed base
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.
wideband
A circuit-switched call at a data rate greater than 64 kbps. A circuit-switched call on a
single T1 or E1 facility with a bandwidth between 128 and 1536 (T1) or 1984 (E1)
kbps in multiples of 64 kbps. H0, H11, H12, and N x DS0 calls are wideband.
wideband access
endpoint
Access endpoints, extended with wideband switching to include wideband access
endpoints. A wideband access endpoint consists of one or more contiguous DS0s on
a line-side T1 or E1 facility and has an extension. The Administered Connections
feature provides call control for calls originating from wideband access endpoints.
wink-start tie trunk
A trunk with which, after making a connection with a distant switching system for an
outgoing call, the system waits for a momentary signal (wink) before sending the
digits of the called number. Similarly, on an incoming call, the system sends the wink
signal when ready to receive digits.
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