The invention of the telephone in the late 1800's was heralded by most people. However, people who are deaf or hard of hearing had difficulty or could not use the telephone at all. For generations, deaf and hard of hearing people had to depend on hearing family members, friends, and neighbors to make telephone calls – to their doctors, children’s schools, and other necessary contacts.
Robert Weitbrecht, a deaf scientist, developed the teletypewriter (TTY) in the 1960s. With the invention of the acoustic coupler (which holds the telephone handset receiver) and the distribution of recycled teletype machines, deaf and hard of hearing people were able to call each other directly using these devices. In the late 1970's and through the 1980's, much smaller and compact versions of the TTY were manufactured, marketed, and made available through state TTY equipment distribution programs.
LINK
Robert Weitbrecht, a deaf scientist, developed the teletypewriter (TTY) in the 1960s. With the invention of the acoustic coupler (which holds the telephone handset receiver) and the distribution of recycled teletype machines, deaf and hard of hearing people were able to call each other directly using these devices. In the late 1970's and through the 1980's, much smaller and compact versions of the TTY were manufactured, marketed, and made available through state TTY equipment distribution programs.
LINK
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