ITU-T P.81-1989
Modulated Noise Reference Unit (MNRU) - Telephone Transmission Quality (Study Group XII; 6 pp; Cancelled)
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ITU-T P.81-1989
Standard No.
ITU-T P.81-1989
Release Date
1989
Published By
ITU-T - International Telecommunication Union/ITU Telcommunication Sector
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