| 1. | Telecommunications - network to customer installation interfaces - analog voicegrade special access lines using e m signaling
电信.网络与用户装置接口.使用e amp ; m信令的模拟音频专用访问线路 |
| 2. | Network - to - customer installation interfaces - analog voicegrade switched access lines with network - implemented coin - operated payphone feature
网络和用户装置间的接口.带网络实现投币付费电话功能的模拟音频转换访问线路 |
| 3. | Telecommunications - interface between carriers and customer installations - analog voicegrade switched access lines with distinctive alerting features
电信.载体和用户装置间的接口.带区别警示功能的模拟音频转换访问线路 |
| 4. | Telecommunications - installation interfaces - direct - inward - dialing analog voicegrade switched access using loop reverse - battery signaling
电信.网络与用户装置接口.利用环路反向电池信令的直接向内拨号模拟音频转换访问线路 |
| 5. | Telecommunications - network to customer installation interfaces - enhanced 911 analog voicegrade psap access using loop reverse - battery signaling
电信.网络与用户装置接口.使用环路反向电池信令的增强型模拟音频psap访问线路 |
| 6. | Interface between carriers and customer installations - analog voice grade switched access lines using loop - start and ground - start signaling
电信公司和客户安装之间的接口，使用环路起始和地起始信令的模拟话音级交换访问线路。 |
| 7. | Telecommunications - network - to - customer installation interfaces - analog voicegrade switched access lines using loop - start and ground - start signaling
电信.网络和用户装置间的接口.利用环路启动和接地启动信令的模拟音频转换访问线路 |
| 8. | Telecommunications - network - to - customer installation interfaces - analog voicegrade switched - access lines using loop - start and ground - start signaling
电信.网络和用户装置间的接口.利用环路启动和接地启动信令的模拟音频转换访问线路 |
| 9. | Telecommunications - interface between carriers and customer installations - analog voicegrade switched access lines using loop - start and ground - start signaling
电信.载体和用户装置间的接口.用于循环启动和接地启动信令的模拟音频转换访问线路 |
| 10. | Telecommunications - network to customer installation interfaces - analog voicegrade special access lines using customer - installation - provided loop - start supervision
电信.网络与用户装置接口.为用户装置提供环路启动监控的模拟音频专用访问线路 |
