Technologies include TDD/TTY devices for the deaf, live captioning for TV, Text over IP (ToIP), some types of instant messaging, captioning for telephony/video teleconferencing, telecommunications relay services including ip-relay, transcription services including Remote CART, TypeWell, collaborative text editing, streaming text applications, next-generation 9-1-1/1-1-2[1] emergency service.
Beam Messenger, a mobile app offering real-time text messaging, was released in 2014.
Real-time text allows the other person to read immediately, without waiting for the sender to finish composing his or her sentence/message.
In the United States, captioned telephony is one of the free relay services that is available to anyone who is hard-of-hearing.
Some examples that provide this as a service are Apache Wave and its fork SwellRT,[4] Etherpad, the editor Gobby,[5] and most notably Google Docs.
[9] According to ITU-T Multimedia Recommendation F.703,[10] total conversation defines the simultaneous use of audio, video and real-time text.