VIP-254PT SIP PoE IP Phone

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

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