... 频段高密度固定业务 High Density Fixed Services 固定电话业务 fixed telephone services 航空固定通信业务 aeronautical fixed service ; AFS ...
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固定电话网短消息业务 pstn short message service
电话用户指接入国家公众固定电话网，并按固定电话业务进行经营管理的电话用户。
Telephone Subscribers refer to subscribers that are connected in the public line telephone network provided with telephone services.
Verizon已经在三个州出售了部分固定电话业务，在其他一些地方也在洽谈中。
Verizon has sold bits of its landline businesses in three states and is negotiating to do the same elsewhere.
根据他的计算，固定电话业务收入占其中收入比重超过50%，而成本所占比例却要高于50%。
According to his calculations, both firms' landline businesses generate more than 50% of revenues, and an even higher share of costs.
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