【国外标准】 Transmission characteristics for wideband (150-7000 Hz) digital handset telephones
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2025-10-22
- ITU-T P.311
- 现行
- 定价: 无文本
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适用范围:
暂无
标准号:
ITU-T P.311
标准名称:
Transmission characteristics for wideband (150-7000 Hz) digital handset telephones
英文名称:
标准状态:
现行-
发布日期:
2006-06-01 -
实施日期:
出版语种:
- 其它标准
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