Panasonic KX-NCP500 - Important Information; Safety Requirements for Telephone Equipment and PBX

TRG
Trunk Group
TRS/Barring
Toll Restriction/Call Barring
U
UCD
Uniform Call Distribution
V
VM
Voice Mail
VoIP
Voice over Internet Protocol
VPN
Virtual Private Network
VPS
Voice Processing System
X
XDP
EXtra Device Port
Feature Guide 7
List of Abbreviations