Home›American inventions›听觉障碍者专用通信服务🌐中文EnglishBahasa IndonesiaDeutschFrançaisItalianoNederlandsSvenskaРусскийالعربية中文日本語EntityQ354147· pop 9· linked from 99 articles听觉障碍者专用通信服务Also known as TDD, TTY telephoneelectronic text communication deviceWikidata factsImage425tdd.JPGShow 2 more factsCommons galleryTelecommunications device for the deafshort nameTDDSources (1)wikidata.orgvia Wikidata · CC0Available in 8 languagesFrançaisDeutschРусскийItalianoالعربيةBahasa IndonesiaSvenskavia Wikidata sitelinks · CC0Connectionstelecommunications relay serviceEntityInternational Telecommunication UnionEntityCategoriesAmerican inventionsAssistive technologyDeafnessTelecommunications