The first long distance telephone call was made in 1876.
第一个长途电话是在1876年拨打的。
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These triode vacuum tubes would become the basis of radio, long distance telephone, and many other electronic devices for nearly a half century.
这些三极管真空管将成为无线电、长途电话，以及近半个世纪的其他电子设备的基础。
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We also use the word " toll" in talking about a long distance telephone call, or at least we used to.
我们在谈论长途电话时也使用“收费” 一词，或者至少我们曾经使用过。
英语百科
Long-distance operator
（重定向自Long distance telephone）
In telephony, the long-distance operator is a telephone operator available to assist with making long distance telephone calls, answering billing questions, making collect calls and other functions, including emergency assistance.