The Yealink B3K(G) Internet-VoIP Phone Adapter provides you the flexibility to use your current phone system while adding Skype functionality. This unit allows you to make and receive regular phone calls, as well as internet Skype communications. Unlike some other products in the market place, the Yealink B3K(G) Internet-VoIP Phone Adapter has remote calling features.While you are out, the USB-B3K will forward all incoming Skype calls to your mobile phone or any other remote phone. The B3K unit will also forward your PSTN calls to Skype. Using your cellphone and a B3K unit, you can literally contact anyone in the world at no/little cost!