Skype: Telephony done the peer-to-peer way
The presentation looks at Peer-to-Peer distributed
network technologies and Voice over IP (VoIP).
By combining them, it is possible to build a
large distributed telephony system with only
using minimal central infrastructure. The centralised
phone switches are made redundant; the cost of
a phone call drops to zero. The same trend
continues to mobile telephony, as WiFi access
points become substitutes for GSM/3G basestations.