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Abbreviations
Issue 2 December 1995 ABB-5
T
TDD
telecommunications device for the deaf
TDM
time division multiplex
TEC
telephone class
TN
tenant number
T/R
tip/ring
TRIP
tip/ring input process
TSC
AT&T's Technical Services Center
U
UCD
uniform call distribution
UMG
ultra-module group
UPS
uninterruptible power supply
V
VM
INTUITY AUDIX Voice Messaging
VP
voice platform (INTUITY software component)
VR
INTUITY Intro Voice Response
VROP
voice response output process