Standardization efforts in IP number portability specifications

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作者：

NTT Network Service Systems Laboratories, Japan ^{[1
]}

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NTT Tech. Rev. | / 12卷

关键词：

Internet protocols - Specifications;

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摘要：

In the near future, the inter-connections between communications carrier networks that use E.164 numbers are expected to migrate to Internet protocol (IP) technology rather than connecting them through the existing public switched telephone network (PSTN). For the migration, IP networks must support number portability functionalities in order to continue the current service, although such functionalities are currently supported only in the PSTN. We describe in this article the domestic number portability specification published in August 2015 as well as the NTT initiatives in this area.

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