| 缩写 | 全称 | 中文释义 |
|---|---|---|
| SR | Subscriber Ready | 订阅服务器就绪 |
| BU | Back Up | 撑腰 |
| BOD | Bandwidth On Demand | 按需带宽 |
| DCD | Data Carrier Detect | 数据载波检测 |
| TSS | Telecommunication Standards Sector | 电信标准部门 |
| NAC | Natural Area Code | 自然区号 |
| CPC | Calling Party Control | 呼叫方控制 |
| PIC | Personal Instant Communications | 个人即时通信 |
| APS | Affordable Portable Services | 负担得起的便携式服务 |
| ECC | Extended Community Calling | 扩展社区呼叫 |