MyNetFone is a Voice over Internet Protocol (VoIP) service. Calls made using the MyNetFone service are connected over a broadband Internet connection, rather than the copper phone lines of Public Switched Telephone Network (PSTN) that your landline uses. To use the MyNetFone's service you will need a broadband connection, either DSL, cable or broadband wireless, soft-phone client or a router and a VoIP phone adaptor.