Table of Contents
    Home / Communications / Mean Opinion Score
    Communications 1 min read

    Mean Opinion Score

    Last Updated May 24, 2021 1:48 pm
    Vangie Beal
    Written by Vangie Beal
    In voice telephony the term MOS, or mean opinion score is a measurement of the quality of human speech at the destination end of the circuit. MOS is expressed as a single number in the range of 1 (lowest perceived quality) to 5 (highest perceived quality). The MOS is an important factor in determining the QoS.

    Was this Article helpful? Yes No
    Vangie Beal
    About the author About the author arrow
    Vangie Beal

    Vangie Beal is a freelance business and technology writer covering Internet technologies and online business since the late '90s.

    Read more
    By using webopedia.com you consent to our privacy & cookie policy. Continue