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５６Ｋ调制解调器标准协议达成国际电信联盟（ＩＴＵ）１９９８年２月６日就ＰＣＭ调制解调器（又称５６Ｋ调制解调器）的技术规范达成协议并已着手正式批准程序。作为联合国的一个机构，ＩＴＵ协调全球通信标准。ＩＴＵ电信标准部门（ＩＴＵ－Ｔ进行调制解调器标准制定工...
56K Modem Standard Protocol reached International Telecommunications Union (ITU) February 6, 1998 An agreement was reached on the specification of a PCM modem (also known as a 56K modem) and the formal approval process was initiated. As a UN agency, the ITU coordinates global communications standards. ITU Telecommunication Standards Sector (ITU-T for Modem Standards Developers ...