VoIP Codecs

A codec (Coder/Decoder) converts analog signals to a digital bitstream, and another identical codec at the far end of the communication converts the digital bitstream back into an analog signal. In the VoIP world, codecs are used to encode voice for transmission across IP networks. Codecs for VoIP use are also referred to as vocoders, for "voice encoders". Codecs generally provide a compression capability to save network bandwidth. Some codecs also support silence...

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