Voice over Internet Protocol or VOIP, is one of the fastest growing Internet technologies today. It enables two or more users with an Internet connection to communicate by voice in much the same way as using a standard telephone line.

The benefit to the caller is in the low call costs. These calls can be made anywhere in the world, to anyone having an IP capable phone. Gateways to the public telephone network allow communication between an IP phone and a standard telephone, thus providing the link to non IP phone users.