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It was a matter of covering with a tablecloth and uncovering a bonfire to communicate with the smoke
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The telephone is a telecommunication device designed to transmit acoustic signals at a distance by means of electrical signals.
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Radio (understood as radiophony or broadcasting, terms not strictly synonymous) is a means of communication that is based on sending audio signals through radio waves, although the term is also used for other forms of transmission remote audio
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the television is an electronic device for the reception and reproduction of television signals. Usually it has a screen and commands or controls.
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The cell phone is a portable phone that can make or receive calls through a radio frequency carrier
