
【国外标准】 Private branch exchanges for connection to public switched telephone networks run by certain public telecommunications operators
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适用范围:
暂无
标准号:
BS 6450-4:1993
标准名称:
Private branch exchanges for connection to public switched telephone networks run by certain public telecommunications operators
英文名称:
Private branch exchanges for connection to public switched telephone networks run by certain public telecommunications operators标准状态:
被代替-
发布日期:
1993-12-15 -
实施日期:
出版语种:
- 其它标准
- 上一篇: BS 6450-3.1:1993 Private branch exchanges for connection to public switched telephone networks run by certain public telecommunication operators. Direct dialling in on private branch exchanges
- 下一篇: BS 6450-5-5.1:1984 Private branch exchanges for connection to public switched telephone networks run by certain public telecommunication operators.Facilities on private branch exchanges
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