中山市TBT预警防控平台
——技术性贸易措施资源
通过互联网协议服务的声音的互相连接
时间: 2008-07-24
2017-10-01
47 CFR 9
Interconnected voice over internet protocol services
2018-07-12
| Title 47--Telecommunication
CHAPTER I--FEDERAL COMMUNICATIONS COMMISSION PART 9--INTERCONNECTED VOICE OVER INTERNET PROTOCOL SERVICES |
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9.1 | Purpose. |
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9.3 | Definitions. |
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9.5 | E911 Service. |
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