Yes, it's free between Skype users. You can also make very cheap calls to normal landlines in many parts of the world. An even cheaper provider click here allows free calls to normal landlines across most of the civilised world as well as free calls between VoipCheap customers. You don't even need a handset you can use a microphone and speakers or headphones. Try either, they aren't perfect but the are either free or very cheap.