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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 first cordless phone model was developed by a Jazz musician named Teri Pall. In 1965 she invented a version of the cordless phone with a range of two miles. It operated using low radio frequencies. Unfortunately she could not sell her invention because the radio signals interfered with aircraft.