AT&T MERLIN LEGEND Release 3.1 System Manager's Manual page 408

Glossary
trunk pool
TTR
U
uninterruptible
power supply
UPS
V
VAC
VDC
VMI
videoconferencing
system
voice mail
voice messaging
interface
W
WATS
See pool and modem pool .
(touch-tone receiver) Device used to decode DTMF touch-
tones dialed from single-line telephones or Remote
Access telephones.
See UPS .
(uninterruptible power supply) Device that connects to the
system to provide 117 VAC to the equipment when the
commercial power source fails.
(alternating-current voltage)
(direct-current voltage)
(voice messaging interface) An enhanced tip/ring port.
System application that allows face-to-face meetings, with
voice and video, to occur between individuals or groups.
This application requires high-speed data transmission
facilities. See also desktop videoconferencing and group
videoconferencing.
Application that allows users to send messages to other
extensions in the system, forward messages received with
comments, and reply to messages.
See VMI .
(Wide Area Telecommunications Service) Service that
allows calls to certain areas for a flat-rate charge based on
expected usage.
System Manager's Guide
GL–21