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【国外标准】 Circuit-mode bearer service categories : Circuit-mode 2 x 64 kbit/s unrestricted, 8 kHz structured bearer service
本网站 发布时间：
2025-06-10
- ITU-T I.231.5
- 现行
- 定价：
- 在线阅读
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标准简介适用范围：
暂无
标准号：
ITU-T I.231.5
标准名称：
Circuit-mode bearer service categories : Circuit-mode 2 x 64 kbit/s unrestricted, 8 kHz structured bearer service
英文名称：
标准状态：
现行-
发布日期：
2025-11-01 -
实施日期：
出版语种：
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