Voice Gateway 4FXS User Manual
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1.2.4 Protocol standards
IEEE 802.3 /802.3u 10 Base T/100Base TX
Main
G.711A/U,
G.723-r63,
G.729
voice
codec,
SIP
RFC3261IAX2
(Inter-Asterisk-eXchange V2)
TCP/IP: transmission control protocol/internet protocol.
RTP: real-time transmission protocol
RTCP: real-time transmission control protocol
VAD/CNG: voice activity detection/comfort noise generation
DHCP: dynamic host configuration protocol
PPPoE: Point-to-point protocol over Ethernet
DNS: domain name service
HTTP: Hyper text transfer protocol
FTP/TFTP: File transfer protocol/Trivial file transfer protocol
UDP: User data protocol
1.2.5 Management maintenance
Telephone configuration: It supports to inquire and set the relevant configuration
information by a simulate telephone.
Network configuration: It supports to upgrade the configuration by ways of HTTP,
TELNET and CLI
User right: It supports to carry out level-to-level administration for users and
administrators.
Network management: It supports OMC (SNMP) network management.
Backup restoration: It supports to export and import the configured files.
Expansion function: Plate loading, device-level stack function
1.2.6 Working environment
Power input: 150～310V AC 47/63Hz
Environment temperature: -40～70℃
