ITU-T Q.35-1998
对于电话业务的音频技术特征

Technical Characteristics of Tones for the Telephone Service -Series Q: Switching and Signalling - International Automatic and Semi-Automatic Working - Tones for Use in National Signalling Systems RECMN E.180; Study Group 2

标准号

ITU-T Q.35-1998

发布日期

1998年03月01日

实施日期

废止日期

无

中国标准分类号

M64

国际标准分类号

33.060.80

发布单位

IX-ITU

适用范围

This Recommendation sets the limits and recommended values of cadences, frequencies and levels for tones used in the telephone service. Those technical characteristics are relevant either for audible tones applied within the network or for those generated

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