AT&T AUDIX Networking 585-300-903 User Manual
Page 240

AB-6
Abbreviations
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TAC
Technical Assistance Center
TC
Tone and Clock (TN714) (also Technical Consultant)
TCM
Terminal Change Management
TD
Time Division (also Transmit Data)
TDBI
Time Division Bus Interface (TN500)
TD Bus
Time Division Bus
TE
Terminal Equipment
TMC
Technical Marketing Center
TMS
Time Multiplexed Switch
TSC
Technical Service Center
TSO
Technical Support Operations
TRACS
Translation Recovery, Additions and Conversion System
UCD
Uniform Call Distribution
UDM
Universal Data Module
UL
Underwriters Laboratories
UM
Unified Messaging
UPS
Uninterruptible Power Supply
VB
Voice Buffer (TN520)
VDN
Vector Directory Number
VMAAP
Visual Maintenance and Administration Panel
VME Bus
Versa-Module European Bus (also DBP Bus)
VMWI
Visual Message-Waiting Indicator
VPC
Voice Processor Computer (TN501B)
VPT
Voice Port (TN747B)
VSFI
Voice Store and Forward Interface (UN162)
VSP
Voice Session Processor
VSP-BI
Voice Session Processor Bus Interface (TN716B)
VSP-CPU
Voice Session Processor Central Processing Unit (TN523 or TN591)
VSP-PE
VSP Processor Element (includes BI, CPU, and RAM)
VSP-RAM
Voice Session Processor Random Access Memory (TN734)
WGS
Work Group System