List of Abbreviations
A
AA
APT
B
BGM
BSS
BV
C
COS
CPC
D
DIL
DISA
DND
DSS
DTMF
E
EFA
F
FWD
G
G-CO
I
IRNA
L
LCS
LED
O
O-CO
OGM
P
PF
PSTN
PT
S
S-CO
SLT
SMDR
T
TAM
TRS
V
VM
VPS
Automated Attendant
Analog Proprietary Telephone
Background Music
Busy Station Signaling
Built-in Voice Message
Class of Service
Calling Party Control
Direct In Line
Direct Inward System Access
Do Not Disturb
Direct Station Selection
Dual Tone Multi-Frequency
External Feature Access
Call Forwarding
Group-CO
Intercept Routing—No Answer
Live Call Screening
Light Emitting Diode
Other-CO
Outgoing Message
Programmable Feature
Public Switched Telephone Network
Proprietary Telephone
Single-CO
Single Line Telephone
Station Message Detail Recording
Telephone Answering Machine
Toll Restriction
Voice Mail
Voice Processing System
Feature Manual
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