Texttelefonie
Texttelefonie, also known as teksttelefonie or teletypewriter communication, is a method of telephone communication designed for people who are deaf, hard of hearing, or speech-impaired. It uses a text-based device connected to the telephone network to type and read messages in real time, allowing conversations to take place without vocal speech.
Traditionally, texttelefonie involved TTY terminals connected to a telephone line via a modem or acoustic coupler,
Relay services are common in many countries and provide accessibility when one party does not have a
Real-time text (RTT) over digital networks represents a modern evolution of texttelefonie, allowing immediate text transmission
See also: TTY, RTT, telecommunication relay service, accessibility.