Table of Contents
Advertisement
Appendix D VIP-255PT Specifications
Product
Model
Hardware
LAN
PC
LCD display
Speaker
Protocols and Standard
Standard
Voice codec
Voice Standard
Supplementary services
Call history
Protocols
Network and Configuration
Access Mode
Management
Dimension (W x D x H)
Operating Environment
Power Requirement
EMC/EMI
SIP PoE IP Phone
VIP-255PT
1 x 10/100Mbps RJ-45 port
Power Over Ethernet 802.3af compliant
1 x 10/100Mbps RJ-45 port
132 x 64 dot matrix graphic LCD
Full duplex hands free speaker phone
SIP 2.0 (RFC3261), MD5 for SIP authentication (RFC2069/ RFC 2617), SIP
outbound proxy, SIP NAT Traversal Support STUN (RFC3489)
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 activity detection (VAD)
Comfort noise generation (CNG)
Acoustic echo canceller (AEC)
G.165: Line echo canceller (LEC)
Jitter Buffer
Caller ID
3-way conference
Immediate (unconditional) call forwarding
Busy call forwarding
No answer calls forwarding
Call Hold/Waiting/Transferring
Record incoming call
Outgoing call
Missed (not accepted) call history
SIP v1 (RFC2543), v2(RFC3261), TCP/IP, UDP/RTP/RTCP, HTTP, ICMP, ARP,
RARP, DNS, DHCP, SNTP, PPPoE
Static IP, PPPoE, DHCP
Web, LCD menu keypad, auto-provision by TFTP/FTP/HTTP
184 mm x 200 mm x 48 mm
0~50 degree C, 0~90% humidity
5V DC, 1A
CE, FCC Class B
35
Advertisement
Table of Contents
