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A jazz musician named Teri Pall invented a version of the cordless phone in 1965 but could not market her invention, as its 2-mile (3.2 km) range caused its radio signals to interfere with aircraft communications. In 1968, she sold her rights to the cordless phone to a manufacturer who modified it for practical use.
The inventor of the telephone was born in Edinburgh, on March 3, 1847. Means of communication had been a hobby in the Bell family long before Alexander was born. His grandfather was the inventor of a device for overcoming stammering and his father perfected a system of visible speech for deaf mutes.