wireless number portability
【TechTarget中国原创】 无线号码可携带性（wireless number portability）是当移动用户转换载波的时候保有相同的电话号码的能力；有线到无线号码可携带性允许客户从他们的有线电话服务转换到无线供应商的...
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Local Number Portability Database (LNPDB), the LNPDB is an MSC feature that enables both landline and wireless subscribers to keep their Mobile Directory Number when changing service providers.
本地移机不变号数据库(lnpdb)，lnpdb是可以使陆上电话和无线用户在更换服务提供商后仍能保持移动电话号码不变的一个msc特性。
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The stakes are high: With cell number portability looming, wireless users who get fed up with paying for incoming spam could desert their carriers in droves.
FORBES: Hanging Up On Wireless Spam