
【国外标准】 Private branch exchanges for connection to public switched telephone networks run by certain public telecommunication operators
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适用范围:
暂无
标准号:
BS 6450-2:1983
标准名称:
Private branch exchanges for connection to public switched telephone networks run by certain public telecommunication operators
英文名称:
Private branch exchanges for connection to public switched telephone networks run by certain public telecommunication operators标准状态:
被代替-
发布日期:
1998-09-01 -
实施日期:
出版语种:
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