From Wikipedia, the free encyclopedia
Voice over Internet Protocol (also called VoIP, IP Telephony, Internet telephony, and Broadband Phone) is the routingof voiceconversations over the Internetor any other IP-based network. The voice data flows over a general-purpose packet-switchednetwork, instead of traditional dedicated, circuit-switchedvoice transmission lines.
Protocolsused to carry voice signals over the IP network are commonly referred to as Voice over IPor VoIPprotocols. They may be viewed as commercial realizations of the experimental Network Voice Protocol(1973) invented for the ARPANET.
For those interested to further their understanding of VOIP, here are some good starting sites to visit:
Ride the VOIP wave and get rid of those greedy telcos!