Transmission Performance Objectives and Recommendations - General Characteristics of International Telephone Connections and Circuits Study Groups 12 and 15
国外标准现行
标准号:ITU-T G.102-1988
标准名称: 传输规划目标和建议 国际电话连接和电路的一般特性 研究12和15组
英文名称:Transmission Performance Objectives and Recommendations - General Characteristics of International Telephone Connections and Circuits Study Groups 12 and 15