PLANETS VIP-480FSThis is a 4-Port VoIP Gateway (4*FXS) - SIP/H323 Dual Protocol.

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 : SIP 2.0 (RFC-3261), H.323, 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

*NEW IN THE BOX
*One Year Warranty