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| TDD (Telecommunication Device for the Deaf (allows a person to transmit typed messages over the phone lines to another person with a TDD. Most TDD's include a keyboard for typing messages to send and a display and/or printer to receive messages.)) | |||
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| TDD (Telecommunication Device for the Deaf (allows a person to transmit typed messages over the phone lines to another person with a TDD. Most TDD's include a keyboard for typing messages to send and a display and/or printer to receive messages.)) | |||