| 15-12 ������Ҫͨ��������2008��2011�꣩ | ||||
| Main Communication Capacity of Telecommunication Services, 2008-2011 | ||||
| �� | ||||
| ָ �� Item | 2008 | 2009 | 2010 | 2011 |
| ��;�绰ҵ���·(2M) | �� | �� | �� | �� |
| Number of Long-distance Telephones (2M) | 9257 | 10332 | ||
| ����ͨ������;��·(2M) | �� | |||
| Digital Long-distance Communication (2M) | 227871 | 461870 | ||
| ��;�绰����������(2M) | �� | |||
| Capacity of Long-distance Telephone Exchanges (2M) | 137826 | 137246 | 137000 | 137000 |
| ���õ绰����������(����) | �� | |||
| Capacity of Office Telephone Exchanges (10 000 lines) | 570.43 | 424.26 | 345.29 | 299.76 |
| �ƶ��绰����������(��) | �� | |||
| Capacity of Mobile Telephone Exchanges (10 000 subscribers) | 1560 | 1840 | 1790 | 2045 |
| ��;������·����(����) | �� | |||
| Length of Long-distance Optical Cable Lines (km) | 3045 | 3110 | 3106 | 3106 |