ITU-T G.121-1989
Loudness Ratings (LRs) of National Systems - General Characteristics of International Telephone Connections and Circuits (Study Groups 12 and 15)
Home
ITU-T G.121-1989
Standard No.
ITU-T G.121-1989
Release Date
1989
Published By
ITU-T - International Telecommunication Union/ITU Telcommunication Sector
Copyright ©2023 All Rights Reserved