H.323 V4,MGCP,SIP, iax2,Net2phone private protocol

Audio codec G.711,G.723,G.729

DHCP support for LAN or Cable modem

PPPoE support for ADSL or Cable modem

Set phone by HTTP web browser (IE6.0) or Telnet

Upgrade by FTP

VAD(Voice active detect)

CNG (Comfort noise generation)

Dynamic voice jitter buffer

G.168/165 compliant 16ms echo cancellation

Tone generation and Local DTMF re-generation according with ITU-T

E.164 dial plan and customized dial rules

100 entries for quick dial

80 entries each for missed calls, answered calls and dialed calls

Adjustable volume for both handset and speaker

Voice prompt

Hotline