• SupportsSIP
• Supports Asterisk Audio codec G.711,G.723,G.729
• DHCP support for LAN or Cable modem
• PPPOE support for ADSL or Cable modem
• Set phone by HTTP web browser(IE6.0) or Telnet
• Upgrade by FTP
• Support G.711 a/u ,G.723.1 5.3/6.3, G.729A/B/AB/ gsm610
• Dynamic voice test
• CNG(Comfort noise generation)
• G.168/165 compliant 16ms echo cancellation
• Tone generation and local DTMF re-generation according with ITU-T
• E.164 dial plan and customized dial rules.

kongmou wrote:

Gateway with 1 FXS ports:GN-06
	.......
Support SIP2.0,TCP/IP,RTP/RTCP,HTTP,ICMP,ARP,DHCP,NTP/SNTP,TETP protocols Support STUN and symmetric RTP for NAT Interoperable with various 3rd party SIP end user device,Proxy/Registrar/Server, and gateway products. Advanced 32bit embed MCU + DSP technology to ensure superior audio quality. Advanced adaptive jitter buffer control, packet delay and loss concealment technology Support popular vocoders including G.723, G.729A/B, G.711(a-law and u-law), G.726 Support standard voice feature such as Caller ID Display or Block, Call Waiting, Hold, Transfer, Forward, in-band and out-of-band DTMF, Dial Plans Support Silence Suppression, VAD(Voice Activity Detection), CNG(Comfort NoiseGeneration), Line Echo Cancellation(G.168), and AGC(Automatic Gain Control)
LAN Interface：10Base-T Universal Switching Power Adaptor: Input AC 220V/110V,Output DC 5V,1000mA Line Echo Cancellation：G.168
88×88×25mm（L×W×H)