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TVP-221H User’s Guide
4
Documentation Abbreviations
Throughout this guide, the user will come across a number of abbreviations that
are common throughout the industry. The user should be familiar with the
following abbreviations:
ATPM
Address Translation and Parsing Manager
CLI
Command Line Interface
DSP
Digital Signal Processor
DTMF
Dual Tone Multi-Frequency
FXO
Foreign Exchange Office
FXS
Foreign Exchange Station
H.323
ITU specification for multimedia transmission over IP
networks
ICMP
Internet Control Message Protocol
IMTC
International Multimedia Telecommunications
Consortium
IP
Internet Protocol
TVP-221H
4-port VoIP Gateway
TVP-224HR
4-port VoIP Gateway Router
KTS
Key Telephone System
LAN
Local Area Network
NVS
Non-Volatile Storage
LED
Light Emitting Diode
PBX
Private Branch Exchange
PSTN
Public Switched Telephone Network
RTP
Real-Time Transport
TCID
Telephony Channel Identifier
TFTP
Trivial File Transfer Protocol
TIM
Telephony Interface Modules
TNV
Telephone Network Voltage
UDP
User Datagram Protocol
UTP
Unshielded Twisted Pair
VAD
Voice Activity Detection
WAN
Wide Area Network