IP-PT
IP Proprietary Telephone
IRNA
Intercept Routing—No Answer
ISDN
Integrated Services Digital Network
LL-CO
Loop-CO
LCS
Live Call Screening
LED
Light Emitting Diode
NNDSS
Network Direct Station Selection
OOGM
Outgoing Message
OHCA
Off-hook Call Announcement
OPX
Off Premise Extension
PPDN
Primary Directory Number
PIN
Personal Identification Number
PRI
Primary Rate Interface
PS
Portable Station
PT
Proprietary Telephone
SS-CO
Single-CO
SDN
Secondary Directory Number
SLT
Single Line Telephone
SMDR
Station Message Detail Recording
SVM
Simplified Voice Message
TTAFAS
Trunk Answer from Any Station
TEI
Terminal Endpoint Identifier
TRG
Trunk Group
TRS
Toll Restriction
UUCD
Uniform Call Distribution
VVM
Voice Mail
VoIP
Voice over Internet Protocol
VPS
Voice Processing System
XXDP
EXtra Device Port
Document Version 2008-11 Feature Manual 7
List of Abbreviations