ITU-T M.734-1989 Exchange of Information on Incoming Test Facilities at International Switching Centres - General Maintenance Principles - Maintenance of International Transmission Systems and Telephone Circuits (Study Group IV) 3 pp
CCI'IT Recommendation CCITT automatic transmission measuring and signalling testing equipment ATME No. 2, Vol. IV, Rec. 0.22.
ITU-T M.734-1989 history
1989ITU-T M.734-1989 Exchange of Information on Incoming Test Facilities at International Switching Centres - General Maintenance Principles - Maintenance of International Transmission Systems and Telephone Circuits (Study Group IV) 3 pp