Key Features

• 802.3af Power over Ethernet
• SIP 2.0 (RFC3261) compliant
• G.711, G.723.1 and G.729 voice codec
• Support STUN, Outbound Proxy
• Up to 3 Proxy server registrations
• 3-way conference, Caller ID support
• Built-in phone book / Speed dial
• Call Hold / Forward / Transfer / Waiting
• VAD / CNG / Echo Cancellation / DTMF detection
• Incoming / Outgoing / Miss Call record
• QoS / NAT / DHCP Server
• Web / Keypad management

Specification

• Model : VIP-254PT
• Hardware :
  • LAN : 1 x 10/100Mbps RJ-45 port (Power Over Ethernet 802.3af compliant)
  • PC : 1 x 10/100Mbps RJ-45 port
  • LCD display : 2 x 16 characters
  • Speaker : Full duplex hands free speaker phone
• Protocols and Standard
  • Standard : SIP 2.0 (RFC3261), MD5 for SIP authentication (RFC2069 / RFC 2617), SIP outbound proxy, SIP NAT Traversal Support STUN (RFC3489)
• Voice codec :
  • G.711: 64k bit/s (PCM)
  • G.723.1: 6.3k / 5.3k bit/s
  • G.726: 16k / 24k / 32k / 40k bit/s (ADPCM)
  • G.729A: 8k bit/s (CS-ACELP)
  • G.729B: adds VAD & CNG to G.729
• Voice Standard
  • Voice activity detection (VAD)
  • Comfort noise generation (CNG)
  • Acoustic echo canceller (AEC)
  • G.165: Line echo canceller (LEC)
  • Jitter Buffer
• Supplementary services
  • Caller ID
  • 3-way conference
  • Immediate (unconditional) call forwarding
  • Busy call forwarding
  • No answer calls forwarding
  • Call Hold / Waiting / Transferring
• Call history
  • Record incoming call
  • Outgoing call
  • Missed (not accepted) call history
• Protocols
  • SIP v1 (RFC2543), v2(RFC3261), TCP / IP, UDP / RTP / RTCP, HTTP, ICMP, ARP, RARP, DNS, DHCP, SNTP, PPPoE
• Network and Configuration
  • Access Mode : Static IP, PPPoE, DHCP
  • Management : Web, LCD menu keypad, Telnet, auto-provision by TFTP / FTP / HTTP
  • Dimension (W x D x H) : 184 x 200 x 48 mm
  • Operating Environment : 0~45 Degree C, 0~95% humidity
  • Power Requirement : 5V, 1A DC
  • EMC / EMI : FCC, CE Class B