Key Features

 Network Features

• Network Address Translation (NAT)
  NAT allows multiple PCs to connect to an Internet Service Provider (ISP) using a single Internet access account.
• Point-to-Point Protocol over Ethernet (PPPoE) Client Support:
  If you are a DSL user, the router has a built-in PPPoE client for establishing a DSL link connection with the ISP. There is no need to install a further PPPoE driver on your computers.
• Smart QoS
  The smart QoS provides stable voice quality while users access to Internet from private LAN at the same time. This device would start suppressing throughput automatically when VoIP call proceed and keep full speed access when there is no VoIP traffic.
• DDNS(Dynamic Domain Name Server)
  DDNS is a service that maps Internet domain names to IP addresses. It allows you to provide Internet users with a domain name (instead of an IP Address) to access your Virtual Servers.
• Virtual Server
  Remote Users can access services such as the Web or FTP at your local site via public IP addresses and can be automatically redirected to local servers configured with private IP addresses.

VoIP Features

• H.323 / SIP dual mode communication
• SIP 2.0 (RFC3261), H.323v4 compliant
• Peer-to-Peer / H.323 GK / SIP proxy calls
• PSTN lifeline for emergency calls (VIP-1680 model)
• Voice codec support: G.711(A-law / u-law), G.729 AB, G.723 (6.3 Kbps / 5.3Kbps)
• Voice processing: Voice Active Detection, DTMF detection, G.165/G.168 compliant echo canceller, silence detection, FAX (T.38 / T.30) Mode Option
• Built in adaptive buffer that helps to smooth out the variations in delay (jitter) for voice traffic
• Voice channels status display: This function display each port status likes as on-hook, off-hook, calling number called number, talk duration, codec

Specification
 

Hardware

• WAN
  1 x 10/100Mbps RJ-45 port
• LAN
  1 x 10/100Mbps RJ-45 port
• Voice
  1 x RJ-21 connector for connecting to telephone patch panel (24 x FXS)

Protocols and Standard

• Standard
H.323 v2/v3/v4 and SIP (RFC 3261) , SDP (RFC 2327), Symmetric RTP,STUN (RFC3489), ENUM (RFC 2916), RTP Payload for DTMF Digits (RFC2833), Outbound Proxy Support
• Voice codec
  G.711(A-law /u-law), G.729 AB, G.723 (6.3 Kbps / 5.3Kbps)
• Fax support
  T.30, T.38
• Voice Standard
  Voice activity detection (VAD)
  Comfort noise generation (CNG)
  G.165/G.168 Echo cancellation
  Dynamic Jitter Buffer
• Protocols
  TCP/IP, UDP/RTP/RTCP, HTTP, ICMP, ARP, NAT, DHCP, PPPoE, DNS
• Advanced Function
  Virtual Server, Smart QoS, IP TOS (IP Precedence) / DiffServ, Build-in NAT router function

Network and Configuration

• Access Mode
  Static IP, PPPoE, DHCP
• Management
  Web, Telnet, Console
• LED Indications
  System: 2, PWR/CPU
  WAN: 1, LNK/ACT
  LAN: 1, LNK/ACT
  Voice 16, In-Use/Ringing
• Dimension (W x D x H)
  440 x 250 x 44 mm
• Operating Environment
  0~40 Degree C, 0~95% humidity
• Power Requirement
  110~240V AC 50/60Hz
• EMC/EMI
  CE, FCC Class B