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Sigma KEE - TDDPhone
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A B C D E F G H I J K L M N O P Q R S T U V W X Y Z
TDD phone
TDDPhone, which stands for Telecommunications Device for the Deaf, describes a Telephone that is designed so that Deaf people can use it
Relationships      
Parents telephone A Telephone is a CommunicationDevice that enables LinguisticCommunication between nodes in a TelephoneSystem by converting sound into electrical signals that are then transmitted. When the signals are received, they are converted back into sound.


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