Protocol

     IETF SIP (RFC3261)

Network Interface

     RJ-45 x 1, 10/100BaseT     

LCD Display

     2 x 16 characters

Key Pad

     25 keys

Call Features

     Call Mute

     Call Rejection

     Call Hold / Resume

     Caller ID Display

     In band DTMF / Out-of-band DTMF (RFC2833) / SIP INFO

     Last Number Redial

Codec

     G.711µ-law

     G711a-law

     G.729a

Phone Functions

     Pre-dial before sending

     Handset / Ringer volume adjustment

     Speed Dial (10 records)

Security

     HTTP 1.1 digest authentication for Web setup

     MD5 for SIP authentication      (RFC 2069/ RFC 2617)

Dial Methods

     Direct IP call without SIP proxy

     Dial number via SIP server

     Dial URI via Speed Dial

Voice Quality

     VAD (Voice Activity Detection)

     CNG (Comfort Noise Generator)

     Jitter buffer

QoS

     ToS field

Tone

     DTMF

     Ring Tone

     Ring Back Tone (local and remote)

     Dial Tone

     Busy Tone

IP Assignment

     Static IP

     DHCP

     PPPoE

NAT Traversal

     STUN

TCP/IP

     IP/TCP/UDP/DHCP/RTP/ICMP/ HTTP/TFTP/DNS

Configuration

     PC-Based Setup Tool

     Auto-provisioning system

Firmware Upgrade

     PC-Based Setup Tool

Power

     Input AC 100-120V / 220-240V 50/60 Hz

     Output DC 5V

Environmental

     Operating temperature: 0～40℃

     Storage temperature: -20~60℃

     Operating humidity: 20%～80%

Physical Dimensions

     Size: 210(L) x 208(W) x 72(H) mm

     Weight: 640g

     Color: Black

Certification Compliance

     FCC Part 15 Subpart B

     CE Class B

     VCCI Class B (optional)

     EN 60950-1 (Safety)