| 1. | Private branch exchanges for connection to public switched telephone networks run by certain public telecommunications operators - specification for general requirements
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 |
| 2. | Private branch exchanges for connection to public switched telephone networks run by certain public telecommunications operators - specification for private branch exchanges with terminating stations treated as an entirety
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用专用分组交换机.整体终端站的专用分组交换机规范 |
| 3. | Private branch exchanges for connection to public switched telephone networks run by certain public telecommunication operators - specification for the procedure for in - service observation of pbxs undergoing type approval
连接由某些公共长途电话接线员操作的专用分组交换机.第7部分:型号审批过程中专用分组交换机使用观察的程序规范 |
| 4. | Private branch exchanges for connection to the british telecommunications public switched telephone network - facilities on private branch exchanges - specification for facilities on private branch exchanges with terminating stations treated as an entirety
由英国长途电话公共开关电话网络连接的专用分组交换机.专用分组交换机设备.整体终端站的专用分组交换机设备规范 |
| 5. | Scrm . 1 : private branch exchanges for connection to public switched telephone networks run by certain public telecommunications operators - simple call - routeing mode - specification for the simple call - routeing mode of pbx operation , with terminating stations treated as an entirety
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.简单简单呼叫通信方式 |
| 6. | Private branch exchanges for connection to public switched telephone networks run by certain public telecommunication operators - direct dialling in on private branch exchanges - specification for direct dialling in on private branch exchanges with terminating stations treated as an entirety
由某些公共长途电话接线员操作的与公共开关电话网络连接的专用分组交换机.专用分组交换机直接拨号.第1节:与整体终端站连接的专用分组交换机直接拨号规范 |
