• A method and group of technologies for the delivery of voice communications and multimedia sessions over Internet Protocol (IP) networks. The steps and principles involved in originating VoIP telephone calls are similar to traditional digital telephony and involve signaling, channel setup, digitization of the analog voice signals, and encoding. Instead of being transmitted over a circuit-switched network, the digital information is packetized and transmission occurs as IP packets over a packet-switched network. ← Wikipedia

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