new arrival--VoIP Gateway With VPN,SIP,VoIP ATA

Specification
1Fxs+1pstn port
Support Centnet EasyTrans
Supprot STUN
Support Three sip servers running at the same time.
Call Forward, Call Transfer.
NAT Support
Simple firewall
Adjustable audio Frames
Adjustable Payload Size
Dynamic programmable Jitter Buffer
Echo Cancellation
VAD-Voice Activity detection
CNG- Comfort Noise Generation
QOS Set Support
Gain Adjustment
Ral Time Fax via T.38
Frame Loss Concealment
Caller ID Generation
Display Number Support
Auto Busy Learning
Plug and Play technology
Web interface, Telnet, Console and Phone
Telephone Key Pad Configuration Through IVR
Invert Signaling Detect and Generation
Master,Slave Server Support

Protocol Support
SIP 2.0
DHCP Client
DHCP Server
PPPoE Client
RTP/RTCP
IP/TCP/UDP/ICMP
DiffServ
SNTP(SIP verion)
G.165 and G.168-2002,with 16,25ms tail length
T.38 Fax
G.711/G.723.1/G.729/G.726

Physical Interface
One Rj45 port WAN Ethernet 10/100baseT
One Rj45 port LAN Ethernet 10/100baseT
Two Rj11 FXS Port or 1 FXS Port and 1 pstn Port.

Size: 17x10x2.7cm(LxWxH).

Features
1) Support Three sip servers running at the same time.
2) Call Forward, Call Transfer.
3) VAD-Voice Activity detection
4) DHCP,PPPoE
5) RTP/RTCP IP/TCP/UDP/ICMP
6) G.165 and G.168-2002,with 16,25ms tail length
7) T.38 Fax
8) G.711/G.723.1/G.729/G.726
9) One Rj45 port WAN Ethernet 10/100baseT
10) One Rj45 port LAN Ethernet 10/100baseT
11) 1 FXS Port and 1 pstn Port.
VoIP Gateway With VPN,SIP Gteway,IP Gateway,VoIP ATALanguage Option Switch
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