| 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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