Using the internet to make telephone calls is what VoIP (Voice over Internet Protocol) technology is all about.
A VoIP call uses the web to connect you, rather than a normal telephone service network.
Because of this, call costs are significantly cheaper. You can call a mobile for around 6p/min or another VoIP user, regardless of where they are geographically, for free!
You need a VoIP compatible telephone handset, or a computer with headphones, microphone and VoIP software; an ADSL connection; and a VoIP service account.
From service to installation to hardware, Innerbox provides everything you need to make telephone calls for less.