P2P Internet Telephony with Skype

Skype is an immensely popular P2P application, often with seven or eight million users connected to it at any one time. In addition to providing PC-to-PC Internet telephony service, Skype offers PC-to-phone telephony service, phone-to-PC telephony service, and PC-to-PC video conferencing service.   Skype uses P2P techniques in a number of innovative ways, nicely illustrating…