Research on the design and policy of national number portability service plan
The 2019 government work report proposed to make the service of number portability officially in effect nationwide.The preparation works had encountered many challenges, such as upgradation of network, changes of rules, and regulations.Firstly, an complete implementation plan from two aspects was pr...
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| Format: | Article |
| Language: | zho |
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Beijing Xintong Media Co., Ltd
2021-11-01
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| Series: | Dianxin kexue |
| Subjects: | |
| Online Access: | http://www.telecomsci.com/zh/article/doi/10.11959/j.issn.1000-0801.2021258/ |
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