ITU-T M.560-1989
International Telephone Circuits - Principles, Definitions and Relative Transmission Levels - General Maintenance Principles - Maintenance of International Transmission Systems and Telephone Circuits (Study Group IV) 4 pp

Standard No.

ITU-T M.560-1989

Release Date

1989

Published By

International Telecommunication Union (ITU)

Status

Withdraw

Latest

ITU-T M.560-1989

Scope

The purpose of this Recommendation is to provide the necessary background information for other Recommendations in the M Series.

ITU-T M.560-1989 history

• 1989 ITU-T M.560-1989 International Telephone Circuits - Principles, Definitions and Relative Transmission Levels - General Maintenance Principles - Maintenance of International Transmission Systems and Telephone Circuits (Study Group IV) 4 pp