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第一通電話：1876年3月10日
因為他對科技向來就有好奇心，貝爾接著還發明了許多東西，包括1880年發明的影相電話 (photophone) 。這是第一支無線電話，透過光波傳遞聲音，而不再使用電纜。這可說是現代使用光纖的無線電話系統的老祖先。
Inspired by his scientific curiosity, Bell went on to create other new inventions, including the photophone in 1880. This first wireless telephone transmitted sound on a beam of light instead of electrical wires. It is the forefather of the cordless phone and 80% of today's telephone systems that use fiber optics.
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