1) Support H232.Sip

2) NAT supported

3) DHCP support for LAN or Cable modem

4) PPPOE support for ADSL or Cable modem

5) Set phone by HTTP web browser

6) Upgrade by TFTP HTTP

7) Support major G.7XX

8) Dynamic Voice jitter buffer CNG(Comfort noise generation)

9) G.165 compliant 16ms echo cancellation

10) Tone generation and Local DTMF re-generation according with

11) ITU-TE.164dia plan and customized dial rules

12) Supported Ipsec and Vlan

13) SNMP V1/V2

14) T30/T38