Does Free VoIP Really Exist?
Source: VoIP Providers List
VoIP is a kind of phone service over high-speed Internet connection. One can have access to this technology through two services, one is phone based and another is computer based. By phone-based technology, you can use your regular phone with the help of ATA, or use your computer with microphone. Through this service, call is sent over the Internet instead of over copper wires.