Network Protocol

• SIP v1 (RFC2543), v2 (RFC3261)
• IP/TCP/UDP/RTP/RTCP
• IP/ICMP/ARP/RARP/SNTP
• TFTP Client/DHCP Client/ PPPoE Client
• Telnet/HTTP Server
• DNS Client
• NAT/DHCP Server
• PPTP client
• VLAN

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
• GSM
• iLBC

Voice Quality

• VAD: Voice activity detection
• CNG: Comfortable noise generator
• LEC: Line echo canceller
  -- G.165, G.168 compliant
  -- Echo canceller for each port
• Packet Loss Compensation
• Adaptive Jitter Buffer

Call Function

• Call Hold
• Call Waiting
• Call Forward
• Call Transfer
• Caller ID
• 3-ways conference
• Toll-Bypass (Auto Answer)

DTMF Function

• RFC2833
• In-Band DTMF
• Out-of Band DTMF
• SIP Info

SIP Server

• Registrar Server
• Outbound Proxy

Tones

• Ring Tone
• Ring Back Tone
• Dial Tone
• Busy Tone
• Programming Tone

Phone Function

• Volume Adjustment
• Speed dial key
• Phone book
• Hook Flash

IP Assignment

• Static IP
• DHCP client
• PPPoE client

Security

• HTTP 1.1 basic/digest authentication for Web setup
• MD5 for SIP authentication (RFC2069/ RFC 2617)

QoS

• ToS field
• Diff serv

NAT Traversal

• STUN (Simple Traversal UDP through NAT)

Configuration

• Web Browser
• Console/Telne
• Windows base Easy setup program

Firmware Upgrade

• TFTP
• Console
• HTTP

Auto provisioning

• HTTP
• TFTP

Models and hardware interfaces

• LAN port: 1x RJ45
• WAN port: 1 x RJ45
• LCD display: 2x16 characters
• Phone case: 27-button keypads
• LED lights: LEDs for SIP, LAN and WAN connection indicator
• Power port: DC 7.5V 600mA

LAN Protocols /Interfaces

• Ethernet interface
• Support 1 Port Ethernet Interface (10/100Mbps) which compliant with IEEE 802.3x standards.
• 10/100 Mbps auto selection
• Ethernet port supports Automatic MDI/MDI-X configuration transceiver.

WAN Protocols /Interfaces

• Ethernet interface
• Support 1 Port Ethernet Interface (10/100Mbps) which compliant with IEEE 802.3x standards.
• 10/100 Mbps auto selection
• Ethernet ports support Automatic MDI/MDI-X configuration transceiver.