Private branch exchanges for connection to public switched telephone networks run by certain public telecommunications operators - Specification for general requirements
标准号:BS 6450-1-1993
标准名称: 连接由某些公共长途电话接线员操作的公共开关电话网络的专用分组交换机.一般要求规范
英文名称:Private branch exchanges for connection to public switched telephone networks run by certain public telecommunications operators - Specification for general requirements
标准类型:国外标准
标准状态:现行
发布日期:1993-02-15
实施日期:1993-02-15
中国标准分类号(CCS):M40
国际标准分类号(ICS):33.040.30