Instruction manual

MERLIN LEGEND Communications System Release 5.0
Maintenance and Troubleshooting
555-650-140
Issue 1
June 1997
Glossary
Page GL-39
V
W
VAC Alternating-current voltage.
VDC Direct-current voltage.
VMI (voice messaging interface) An enhanced tip/ring
port.
voice-band channel A transmission channel, generally in the
300–3400-Hz frequency band.
voice mail Application that allows users to send messages to
other extensions in the system, forward messages
received with comments, and reply to messages.
voice messaging
interface
See VMI.
WATS (Wide Area Telecommunications Service) Service
that allows calls to certain areas for a flat-rate charge
based on expected usage.
wink-start tie trunk Tie trunk on which the originating end transmits an
off-hook signal and waits for the remote end to send
back a signal (a wink) that it is ready for
transmission.