Human Factors (HF); Recommendation of characteristics of telephone services tones when locally generated in telephony terminals
人为因素(HF);在电话终端中本地生成的电话服务音调特征的建议
发布日期:
1995-04-01
在电话终端中本地生成的电话服务音调的协调。
Harmonization of telephone services tones when locally generated in telephony terminals.