ITU-T D.180-2005
为国际声音节目和电视节目的传送偶尔提供电路-系列D:一般资费原则:一般资费原则: 国际声音节目和电视
Occasional provision of circuits for international sound- and television-programme transmissions Series D: General Tariff Principles; General tariff principles - International sound-and television-programme transmissions Study Group 3