| 缩写 | 全称 | 中文释义 |
|---|---|---|
| TELECOMMUTE | Telecommuters | 远程办公人员 |
| TC | Telephone Call | 电话呼叫 |
| DIRC | Digital Information Resource Center | 数字信息资源中心 |
| NDOTT | National Data Operations Training Team | 国家数据操作培训小组 |
| TTX | TeleTeXt | 图文电视 |
| UMS | Unified Messaging Service | 统一消息服务 |
| TTD | Temporary Transmit Delay | 临时传输延迟 |
| HSOPA | High-Speed OFDM (Orthogonal Frequency Division Multiplexing) Packet Access | 高速OFDM（正交频分复用）分组接入 |
| CLOS | Clear Line Of Sight | 清晰的视线 |
| DOITT | Department of Information Technology Telecommunications | 信息技术电信部 |