ITU-TQ.24-1989多频按键信号的接收

标准号:ITU-T Q24-1989
标准名称: 多频按键信号的接收
英文名称:Multifrequency Push-Button Signal Reception - General Recommendations on Telephone Switching and Signalling - Functions and Information Flows for Services in the ISDN - Supplements Study Group XI; 3 pp
标准类型:国外标准
标准状态:现行
中国标准分类号(CCS):M40
国际标准分类号(ICS):3306020
