ITU-TQ.28-1989在自动业务中被叫用户应答瞬间的确定

标准号:ITU-T Q28-1989
标准名称: 在自动业务中被叫用户应答瞬间的确定
英文名称:Determination of the Moment of the Called Subscriber's Answer in the Automatic Service - General Recommendations on Telephone Switching and Signalling - Functions and Information Flows for Services in the ISDN - Supplements (Study Group XI) 1 pp
标准类型:国外标准
标准状态:现行
中国标准分类号(CCS):M15
国际标准分类号(ICS):3306080
