ITU-T M.665-1989
Testing of Echo Cancellers - General Maintenance Principles - Maintenance of International Transmission Systems and Telephone Circuits (Study Group IV) 2 pp

Standard No.

ITU-T M.665-1989

Release Date

1989

Published By

International Telecommunication Union (ITU)

Status

Withdraw

Latest

ITU-T M.665-1989

Scope

This Recommendation applies to all echo cancellers specified in accordance with Recomrnendation G.165 [i], which are located either in international or national networks and which are used for international calls.

ITU-T M.665-1989 history

• 1989 ITU-T M.665-1989 Testing of Echo Cancellers - General Maintenance Principles - Maintenance of International Transmission Systems and Telephone Circuits (Study Group IV) 2 pp