Voice over Internet Protocol (VoIP) is a technology for communicating using Internet protocol instead of traditional analog systems. Some VoIP services need only a regular phone connection, while others allow you to make telephone calls using an Internet connection instead. Some VoIP services may allow you only to call other people using the same service, but others may allow you to call any telephone number - including local, long distance, wireless, and international numbers.
For more information on Voice over Internet Protocol, see our consumer guide.
