7
Protocol
RTP
Real-Time Transport Protocol
RTCP
Real-Time Transport Control
Protocol (also known as RTP
control protocol)
SIP
Session Initiation Protocol
SLIC
Subscriber Line Interface Circuit
STUN
Simple Traversal of UDP through
NATs
URI
Uniform Resource Identifier
TCP
Transmission Control Protocol
UDP
User Gateway gram Protocol
UPnP
Universal Plug and Play
VoIP
Voice Over Internet Protocol
1.3 Introduction
combines VoIP and traditional analog phone
Support SIP VoIP protocol.
TG400 series: allow 4 SIP call
TG800 series: allow 8 SIP call
equipped with basic 4-port IP sharing function
Model
FXS Port
FXO port WAN Port LAN Port RJ-11 port
SIP
TG400
4
1
4
4
TG402
2
2
1
4
4
TG404
4
1
4
4
TG800
8
1
4
8
TG804
4
4
1
4
8
TG808
8
1
4
8
1.4 Front panel LED description
TG400 Series:
LED
STATUS
indication
Power
Green light on
power on
Off
power off
REG
Green light on
SIP account registered successfully