Specification :

WT8020 VoIP Gateway
WT8020 is a kind of voice communication terminal which is based on broad band and independent of PC (personal computer).
Voice Features
n Support H323v4 and SIP RFC3261 synchronously
n CodecG.711A/u, G.7231 high/low, G.729
n Echo cancellationSupport G.168
n Support Voice Gain Setting, Jitter Buffer, VAD, CNG
n H323 support dual GK, call forward, and Peer to Peer.
n NAT transversesupport STUN client, Citron, AVS
n SIP support SIP domain, SIP authentication (none, basic, MD5), DNS name of server, Peer to Peer
n SIP support pubic/Private server. Can connect to Public ISP and Private SIP server at the same time
n SIP support dual public server
n DTMFSupport SIP info, DTMF Relay, RFC2833
n SIP application: support Call forward/transfer/holding/waiting
n Call control features: Flexible dial map, support Hotline, Empty calling No. reject service, Black list for reject authenticated call, No disturb, Caller ID
n Support T.38 Fax
Network Features
n WAN/LAN: Support Bridge and Router model
n Support basic NAT and NAPT
n Support PPPoE for xDSL
n Support DHCP Client on WAN
n Support DHCP Server on LAN
n Support DNS Relay, SNTP Client, Firewall
n Network tools in telnet server: Including ping, race route, telnet client
Maintenance and Management
n Support Boot Monitor
n Can upgrade firmware through boot monitor
n Can be config through Web, keypad, Telnet
n Can upgrade firmware and configuration file through HTTP, FTP, TFTP
n Support Syslog
Specification
Item WT8020
Adapter(Input/
Output) Input:100-240V Output12V1.5A
Port WAN 1 10/100Base T RJ-45 for LAN
LAN 3 10/100Base T RJ-45 for PC
FXS 2 RJ11 for Phone
PSTN 1 RJ11 for Lifeline
Power Consumption Idle: 1.9W/Active:2.8W
Operation Temperature 0 ~ 40
Dimension 11?.1?.15in(280?80?0mm)
Weight 1.85lb.(0.84kg)
Relative Humidity 10^65%(Non-condensing)
Main Chipset MIPS32(175M), DSP(128M
SDRAM 128Mbits
Flash 16Mbits