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Receiver Sender System overview Contributors to system delay are: Sampling buffering Encoding delay Packetization delay Transmission delay Transport delay (Internet) Receiver buffering delay Decoding delay Playout delay Sum of delays less than 200 ms for high quality conversational, less than 400 ms to be usable for conversational VoIP Codec MIC Payload Packetization DCCP Internet Codec Speaker DCCP Jitter Buffer |