Real-Time Text (RTT) is an accessibility feature on Android devices designed to assist individuals with hearing or speech impairments. It allows for text-based communication during a phone call, with characters being transmitted immediately as they are typed. This contrasts with traditional text messaging, where the entire message is sent at once. In practice, this means a user can see what the other person is typing almost instantly, fostering a more fluid and interactive conversation.
The inclusion of RTT enhances communication accessibility, providing a vital tool for those who may find standard voice communication challenging or impossible. The technology has evolved from teletypewriter (TTY) devices, representing a significant advancement in telecommunications for individuals with disabilities. The benefits extend beyond immediate communication, as it also allows for a written record of the conversation. It’s importance lies in providing equal access to communication for a diverse user base.