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Alexander Graham Bell was a successful inventor and made breakthroughs with helicopters and hydrofoils. Definitely not a one trick pony.
Bell was not the inventor --- at least not for the telephone itself. Maybe for the telephone exchange.

Philipp Reis was the phone inventor. See my other post below for some details.

Clickbait titles should be changed, as per the guidelines for HN submissions.
As a kid I had this idea of using mirrors for wireless communication. I've never heard of this one before but it makes me very happy! I was thinking of using it for like, torrents or something though.
In more technical terms, Bell used amplitude modulation of audio using light as the carrier wave, and selenium as a photoconductive transducer.
I think he could have gotten away with naming his daughter Photophone, but he would have to pronounce it as if she were a character from an ancient greek epic: phoTOphoNEE.
I did guess. There was a photophone project in one of those Forrest M. Mims notebooks you could get at Radio Shack, and it mentioned that Bell considered it even more important than the telephone.