Detailed Product Description

Display:
Back light LCD screen
- 80X39mm
- 4 lines X 16 characters
Caller ID
Date and Time Display

Specifications:
Adapter Input:100-240VAC 50-60Hz
Adapter Output: 9VDC 600mA
WAN: 1 x RJ45 100Base-T
LAN: 1 x RJ45 100Base-T
L x W x H: 230x190x55mm
Weight: 1.08 Kg

Phone Functions:
Message Wait Indicator
SIP Registration (2 Accounts) Two Ethernet ports (10/100) Call History
Phone Book (XML100 Entries) Full Duplex Speakerphone

Call Features:
Call Redial, Call Block (DND) Call Hold, Call Transfer
Call Forward, Call Waiting
Three parties Conference

Tones:
Ring tone, Ring back tone
Dial tone, Busy tone

Voice Quality:
Silence Suppression
VAD: Voice activity detection    CNG: Comfortable noise generator
AEC: Acoustic echo canceler   G.168: Network echo canceler Jitter Buffer

Codec:
G.723.1
G.726
G.729A G.729B
G.711 (a-law/u-law)

Nat Traversal:
STUN
Media Relay
Automatic NAT Traversal

QOS:
802.1Q VLAN, 802.1P TOS, DiffServ

IP Assignment:
PPPoE, DHCP, Static IP

Network Protocol:
SIP Version 2 (RFC3261) TCP/UDP/IP RTP/RTCP ICMP,
ARP/RARP DNS, DHCP, NTP, PPPoE STUN, UPNP

Phone Buttons/Keys:
Five navigation/menu/volume keys,  
13  dedicated   function   keys    for: Hold, Speakerphone,Send/Redial,Mute,Transfer, Conference and Message (with message indicator),  Line  1,  Line  2, DND, Play, Phone Book, Answer on.

Security
HTTP Basic/Digest authentication
MD5    for    SIP    Authentication (RFC 2069/RFC2617)