| 1. | Business telecommunications - 34 mbit s digital leased lines d34u and d34s - connection characteristics 商务电信. 34mbit s数据出租线.连接特性 |
| 2. | Business telecommunications - 140 mbit s digital leased lines d140u or d140s - connexion characteristics 商务电信. 140mbit s数据出租线.连接特性 |
| 3. | Business telecommunications - 34 mbit s digital leased lines d34u and d34s - terminal equipment interface 商务电信. 34mbit s数据出租线.终端设备接口 |
| 4. | Business telecommunications - 140 mbit s digital leased lines d140u and d140s - terminal equipment interface 商务电信. 140mbit s数据出租线.终端设备接口 |
| 5. | Business telecommunications - 34 mbit s and 140 mbit s digital leased lines d34u , d34s , d140u and d140s - network interface presentation 商务电信. 34mbit s和140mbit s数字出租线.网络接口展示 |
| 6. | A2s . business telecommunications - ordinary and special quality voice bandwidth 2 - wire analogue leased line a2o and a2s - terminal equipment interface 商务电信.普通和特殊质量声音的宽带2线模拟出租线 |
| 7. | A2s . business telecommunications - special quality voice bandwidth 2 - wire analogue leased line - connection characteristics and network interface presentation 商务电信.特殊质量声音的宽带2线模拟出租线 |
| 8. | A4s . business telecommunications - special quality voice bandwidth 4 - wire analogue leased line - connection characteristics and network interface presentation 商务电信.特殊质量声音的宽带4线模拟出租线 |
| 9. | A4o . business telecommunications - ordinary quality voice banwidth 4 - wire analogue leased line - connection characteristics and network interface presentation 商务电信.普通质量声音的宽带4线模拟出租线 |
| 10. | A40 a4s . business telecommunications - ordinary and special quality voice bandwidth 4 - wire analogue leased line a4o and a4s - terminal equipment interface 商务电信.普通和特殊质量声音的宽带4线模拟出租线 |