| 1. | Technical requirements for toll manual switching equipment 长途人工电话交换设备.技术要求 |
| 2. | The supplementary specification to spc 电话交换设备总技术规范补充件1 |
| 3. | Methods of test for toll manual telephone switching equipment 长途人工电话交换设备.测试方法 |
| 4. | Ccsa common control switching arrangement 公共控制交换设备 |
| 5. | Private branch exchange switching equipment for voiceband application 话音频带用专用小交换机交换设备 |
| 6. | Radware : trusted provider for intelligent switching equipment in 4 7th layers 7层智能应用交换设备提供商 |
| 7. | Test method of atm switch equipment Atm交换设备测试方法 |
| 8. | Switching equipment irregulari - ties 交换设备不规则性 |
| 9. | Switching equipment congestion sec 交换设备拥塞 |
| 10. | Automatic switching equipment 自动交换设备 |