| Product |
| Model | VIP-480FO | | Hardware | | WAN | 1 x 10/100Mbps RJ-45 port | | LAN | 4 x 10/100Mbps RJ-45 port | | Voice | 4 x RJ-11 connection ( 4 x FXO) | | 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 | | LED Indications | System: PWR WAN: 1, LAN/ACT LAN: 4, LNK/ACT Voice 4, In-Use/Ringing | | Dimension (W x D x H) | 260 x 135 x 35 mm | | Operating Environment | 0~40 degree C, 0~95% humidity | | Power Requirement | 12V DC | | EMC/EMI | CE, FCC Class B | | |