http:/ / www.skype.com/
Skype is free and simple software that will enable you to make free calls anywhere in the world in minutes. Skype, created by the people who brought you KaZaA uses innovative P2P (peer-to-peer) technology to connect you with other Skype users. Skype calls have excellent sound quality and are highly secure with end-to-end encryption. Best of all, Skype does not require you to reconfigure your firewall or router—it just works!
