* PC-PC,PC-to-phone operation

* No sound card and external power required

* Compatible with H.323、MGCP、and SIP agreements

* Echo cancellation, noise reduction

* Full duplex communication

* Dialing function

* Built-in ring, adjustable conversation volume and ring volume

* Dial skype contacts (speed dial number) and skype out number by phone keypads.

* Supporting many kinds of soft phone platform

* Wall mountable fuction