| 缩写 | 全称 | 中文释义 |
|---|---|---|
| DP | Dial Pulsing | 拨号脉冲 |
| CI | Customer Installation | 客户安装 |
| DOV | Data Over Voice | 语音数据 |
| ADC | Analog-to-Digital Converter | 模数转换器 |
| LEN | Line Equipment Number | 线路设备编号 |
| TCM | Tandem Connection Maintenance | 串联维护 |
| VAZO | Violating All-Zero Octet | 违反所有零八位字节 |
| NMA | Network Management and Administration | 网络管理与管理 |
| PFDL | Policy Framework Definition Language | 策略框架定义语言 |
| UNICODE | out-of-service CODE | 停用代码 |