mobile_virtual_network_operators

1.Rather than building their own phone towers, these minor telcos are Telstra wholesale customers, piggybacking on its mobile network as mobile Virtual network Operators.
比起建立自己的电信塔，这些小型的电信公司是澳洲电信的批发客户，借用其移动网络虚商。
dict.yoduao.com