voip gateway with life-line
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digital audio processor
Terminal device with Standard SIP 2.0 protocol, highly commonality and fit to global extension.
Supports SIP 2.0, TCP/UDP/IP, RTP/RTCP, ICMP, ARP/RARP, NTP, PPPoE, TFTP, HTTP, etc
Supports G.711 (alaw and u-law) , G.723.1 (5.3K/6.3K) , G.726 (40K/32K/24K/16K) , G.728, G.729A/B and iLBC. .
The powerful DSP digital audio processor to keep a wonderful audio-quality;
Inside DNS, router, NAT, DMZ, the gateway and DHCP (the client end and the server end) ;
Control the audio flutter and concealment technology anti-lost message.
Supports standard voice features such as Call keeping, Call Waiting, Hold, Transfer Forward, FLASH; Supports three way call
Supports VAD, CNG, AGC, the echo cancellation (G.168) and Silence suppression.
Supports layer 2 (802.1Q VLAN, 802.1p) and layer 3 QoS (ToS, iffServ, MPLS)
Powerful remote management by TFTP or HTTP mode.
To dispose through the browser or the voice hint.
Supports auto-crossing firewall (NAT) ;
Support CALL Progress free enactment function.
Support the volume adjustment of gateway
Support SIP encrypts mode, avoid force-out
Support remote upgrade and upgrade configuration function
Supports passing through and T.38 fax mode.
Environmental designing, conform to the international electromagnetism radicalizations standard;
Quality material, original circuit design, and no electric current noise, work steadily.
Artistic Human-based appearance designing, let you feel the strong affinity for the product besides convenience for carrying.