Available since 2004.
Delivered by existing broadband connection.
Behaves much like standard Public Switched Telephone Network (PSTN).
Requires equipment:

  • Dedicated VoIP phone, or
  • Adaptor for standard analog phone, or
  • Software and headset/web cam

Benefit for home users is ability to make free phone calls, especially when making long distance calls.
Most common provider is Skype.

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