【国外标准】 Automatic answering equipment and general procedures for automatic calling equipment on the general switched telephone network including procedures for disabling of echo control devices for both manually and automatically established calls
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2025-10-22
- ITU-T V.25
- 现行
- 定价: 无文本
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暂无
标准号:
ITU-T V.25
标准名称:
Automatic answering equipment and general procedures for automatic calling equipment on the general switched telephone network including procedures for disabling of echo control devices for both manually and automatically established calls
英文名称:
标准状态:
现行-
发布日期:
2018-10-01 -
实施日期:
出版语种:
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