Leased-Circuit business: means an Operator who engages in the business of leasing its network transmission equipment, which shall have no exchange functions, and the auxiliary equipment thereof.

电路出租业务：指经营者出租其所设置不具交换功能之网路传输机线设备及其附属设备之业务。

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"Whilst we are significantly expanding our network, we accept the fact that no mobile operator can have total blanket coverage, which is why we have this policy in place, " said a 3 spokesman.

BBC: Mobile firms failing on coverage

An operator might have a network, but no customers, because they've all migrated.

ECONOMIST: The EU hopes to slash the price of cross-border mobile calls