ITU-T G.131-1996
Control of Talker Echo - Series G: Transmission Systems and Media International Telephone Connections and Circuits - General Characteristics of the 4-Wire Chain Formed by the International Circuits and National Extension Circuits (Study Group 12)

Standard No.

ITU-T G.131-1996

Release Date

1996

Published By

ITU-T - International Telecommunication Union/ITU Telcommunication Sector