TMN F Interface Requirements - Series M: TMN and Network Maintenance: International Transmission Systems Telephone Circuits Telegraphy Facsimile and Leased Circuits - Telecommunications Management Network Study Group 4; 29 pp
TMN F Interface Requirements - Series M: TMN and Network Maintenance: International Transmission Systems, Telephone Circuits, Telegraphy, Facsimile and Leased Circuits - Telecommunications Management Network Study Group 4; 29 pp