After years of development Internet telephony (VoIP)is now mature, indeed few things represent the future of modern technology better. VoIP (Voice over Internet Protocol) telephony is no longer the exclusive domain of technical experts - it is now so simple even grandmothers can use it! VoIP Internet telephony is now accessible to everyone, including all kinds of domestic and commercial users. Now incredibly easy to set up and operate, and enabling global communication without any restrictions - it is also amazingly affordable, that is to say, when it isn't completely free!

Traditionally the costs of telephone calls were determined by the proximity of the callers. Depending on whether the called user is next door or somewhere on the other side of the world, the phone companies charge very different rates.

If one of the callers uses a VoIP telephone, connections back and forth between the "classic" wired telephone network (PSTN) and the VoIP telephone have to be handled via a gateway – like Voipfone - Sipgate - Skype etc............

Ideally, multiple gateways would be available in a worldwide network (for example by connecting the networks of the individual SIP providers). This way, VoIP calls can be transmitted via the Internet and then transferred at their destination point.

Global network interconnectivity enables millions of users to call each other for free.

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