The Sky-211 USB VoIP Adapter is a device that allows you to connect a traditional telephone to a computer or network for Voice over IP (VoIP) calls. It works by converting analog telephone signals into digital signals that can be transmitted over the Internet, enabling the use of VoIP services like Skype, Google Voice, or other internet-based calling services.

To use the Sky-211 USB VoIP Adapter on a Windows computer, you will need to install the appropriate driver. This driver ensures that your computer can communicate with the adapter and that it functions correctly when used with VoIP software.