ITU-T Q.109-1989
国际交换局中应答信号的传送

Transmission of the Answer Signal in International Exchanges - General Recommendations on Telephone Switching and Signalling - Functions and Information Flows for Services in the ISDN - Supplements (Study Group XI) 1 pp


 

 

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标准号
ITU-T Q.109-1989
发布日期
1989年01月01日
实施日期
废止日期
中国标准分类号
M16
发布单位
IX-ITU
适用范围
these delays being additional to any delays due to conversions and repetitions of the answer signal within the national systems of the incoming and outgoing countries.




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