| 缩写 | 全称 | 中文释义 |
|---|---|---|
| GSN | GPRS (General Packet Radio Service) Support Node | 通用分组无线业务支持节点 |
| SB | Service Billing | 服务计费 |
| PWP | Plastic Wall Phone | 塑料墙电话 |
| FSM | Field Service Manager | 现场服务经理 |
| ACTS | Automated Coin Toll System | 自动收费系统 |
| LCR | Least Cost Routing | 最小成本路由 |
| FT | Field Testing | 现场测试 |
| USA | Underground Service Alert | 地下服务警报 |
| DIL | Direct Inward Line | 直接进线 |
| BHCA | Busy Hour Call Attempts | 忙时呼叫尝试 |