Access Points for International Telephone Circuits - General Maintenance Principles - Maintenance of International Transmission Systems and Telephone Circuits (Study Group IV)
国外标准现行
标准号:ITU-T M.565-1988
标准名称: 国际电话线路的接入点.一般的维修原则.国际传输系统和电话线路维护研究组4
英文名称:Access Points for International Telephone Circuits - General Maintenance Principles - Maintenance of International Transmission Systems and Telephone Circuits (Study Group IV)