Seek the wireless transmission scheme of wired landline!

The best way to solve this problem is to use cordless phones, except cables. In fact, cables are not practical. In order to avoid the suspicion of advertising, you can search on Taobao. Long-distance cordless phones can support products several kilometers away. This problem can be solved. However, it is worth noting that this kind of telephone uses analog signals, just like ordinary cordless telephones in the past, but its power is much higher, but its security cannot be guaranteed. Many enthusiasts and walkie-talkie fans can eavesdrop on your call, that's all. Nothing else can be solved.

Let's talk a little more. Why do so many idiots come out and pretend to understand? They came to talk about it, but they didn't understand its content. That's good. If you are stupid enough to tell the difference between telephone and broadband, why not do point-to-point and switch to wireless routing? Please be normal.