Multiple choice

Measurement used to compare codecs

  1. mean opinion score (MOS)

  2. common-channel signaling (CCS)

  3. real time protocol (RTP)

  4. Private Branch Exchange (PBX)
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A Correct answer
Explanation

Mean Opinion Score (MOS) is a numerical measure of the human-judged quality of voice communications, often used to evaluate the performance of different voice codecs.

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