These calls are placed collect and the only charge is for the telephone service from the ham to the recipient.

这种电话是由对方付费的，只是从本土无线电站到接听者之间会产生一些电话服务费用。

youdao

Use the telephone only for emergency calls.

电话只用来紧急呼叫。

youdao

Within a few short years Manaus had Brazil's first telephone system, 16 miles of streetcar tracks, and an electric grid for a city of a million, though it had a population of only 40, 000.

短短几年，马瑙斯有了巴西第一个电话系统，16英里的电车道以及可供100万人口的城市使用的电网，虽然它仅有4万人口。

youdao

Latency used to be a concern only for the telephone people, eager to avoid an unnatural delay in conversations.

WSJ: A Dive Into the Digital Deep

The only things that make money for telephone carriers are voice services.

ECONOMIST: DIALOGUE: Gridlock on the superhighway | The

For now only small sums can be transferred via telephone accounts, but there is no limit to the technology.

FORBES: Telewallets