Voice over Internet Protocol (VoIP), is a set of protocols used to carry voice signals over the IP network (the Internet). This enables telephone calls to be made using a Broadband Internet connection instead of a regular (or analog) phone line.

There are a number of different styles of VoIP, some may only allow you to call other people using the same service, however others, such as Redback's, allow you to make calls to any telephone number - such as local, long distance, mobile, and international numbers. VoIP can be set up in one of three ways.

Firstly by using what are termed "soft phones". In this case you need specialized software installed on your computer, a microphone, speakers, a sound card and a Broadband Internet connection.

Secondly, one can utilize a special VoIP phone, which plugs directly into your Broadband connection and functions as a standard phone.

Finally a traditional phone can be used through an analog telephone adaptor (ATA).