number portability
Telecommunications
noun
A facility which enables customers to transfer from one from one telephone company to another without having to change their telephone number.
Origin
1980s; earliest use found in Network World.
| 单词 | number portability |
| 释义 | number portabilityTelecommunications noun A facility which enables customers to transfer from one from one telephone company to another without having to change their telephone number. Origin |
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