Yealink B2K RJ11 to Skype Adapter Fully integrated with Skype for making & receiving calls. All incoming calls to your Skype phone number will be forwarded to your regular phone and will ring just the same as your regular phone call. Just pick up the phone and dial, SkypeOut will be automatically detected and used for long distance call. PC running Windows 2000 or XP. 400 MHz processor or higher 128 MB RAM or higher Free USB port Package USB Phone Adapter Box USB cable Telephone line Driver CD Instruction Manual Compact and unique design.