Wat Is Skype

Challenge Media
Skype: goedkoop telefoneren met de computer.
http://www.challenge-media.com/skype.php

Howstuffworks
Circuit switching meant that a long distance phone call was very expensive. find out why packet switching and voip are changing how phone calls work.
http://computer.howstuffworks.com/ip-telephony2.htm

Skype
Skype
http://www.skype.nu/