Voice over IP or "VoIP" for Voice over IP, is a technique that can communicate by voice over IP compatible networks, whether private networks or the Internet, wired (cable / DSL / optical) or not (satellite, wireless, GSM). This technology is mainly used to support telephone service over Internet Protocol ("IP telephony" for Telephony over Internet Protocol).
Transport of voice over IP is relatively complex. The first step is the digitization of the acoustic signal. This is the coding. Then the information is divided into frame that can travel on a computer network. Various protocols can then be used to convey the information to (x) recipient (s). And RTCP is used to control the transport of RTP packets.
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