| 缩写 | 全称 | 中文释义 |
|---|---|---|
| LOH | Line OverHead | 线路开销 |
| DTF | Dial Tone First | 先拨号音 |
| SRTS | Synchronous Residual Time Stamp | 同步剩余时间戳 |
| NMS | Network Management System | 网络管理系统 |
| MOC | Managed Object Class | 托管对象类 |
| INE | Intelligent Network Element | 智能网元 |
| CMIS | Common Management Information Service | 公共管理信息服务 |
| DCC | Data Communications Channel | 数据通信通道 |
| FRS | Frame Relay Service | 帧中继服务 |
| HDB3 | High-Density Bipolar Three-bit substitution | 高密度双极三位替换 |