PLANET VIP-251T - Manual (Page 57)

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Appendix C VIP-251T Specifications
Product Desktop SIP IP Phone
Model VIP-251T
Hardware
WAN
1 x 10/100Mbps RJ-45 port
LAN 1 x 10/100Mbps RJ-45 port
LCD display 4 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)
Protocols SIP v1 (RFC2543), v2 (RFC3261), TCP/IP, UDP/RTP/RTCP, HTTP,
ICMP, ARP, RARP, DNS, DHCP, SNTP, PPPoE
Voice codec G.711: 64k bit/s (PCM)
G.729: 8k bit/s
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 / Transfer
Call history Record incoming call
Outgoing call
Missed (not accepted) call history
Network and Configuration
Access Mode
Static IP, PPPoE, DHCP
Management Web, LCD menu keypad, Auto-Provision
Dimension (W x D x H) 220 x 187 x 97 mm
Operating Environment 0~50 Degree C, 0~90% humidity
Power Requirement 5V DC, 1A
EMC/EMI CE, FCC Class B