"Clive Page" wrote in message
...
On 15/02/2021 10:36, charles wrote:

Particularly in a lift which might be a Faraday Cage


I have been surprised several times in the last few years to see people
making or receiving mobile calls while in a lift. I had assumed that the
sheet metal on all 6 sides would form a fairly effective barrier to
signals, but apparently not. Does anyone understand why?

For the same reason they work in cars, they arent that
great a faraday cage.

Back to the original post: one danger here might be that you have a phone
that works while in a lift that fails, but the number you are supposed to
call is taped the the button on the landing outside it not inside the car.


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Clive Page