At its inception in the 19th-century, the talking telegraph (AKA the telephone) was an amazing feat of engineering using analog technology. One could speak into a micro-phone in one city and be heard in another city. Accom-plishing this required a very large investment in technol-ogy. The customers were consumers of the service.

中文翻译：

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消费技术与5G

在19世纪初期，有声电报（又称电话）是使用模拟技术进行工程设计的绝妙壮举。一个人可以在一个城市里用麦克风讲话，而在另一个城市里可以听到。为此，需要在技术上进行大量投资。客户是服务的消费者。