A printing telegraph instrument that has a signal -actuated mechanism for automatically printing received messages. Note 1: A TTY may have a keyboard similar to that of a typewriter for sending messages. ( 188 ) Note 2: Radio circuits carrying TTY traffic are called "RTTY circuits" or "RATT circuits."
TELETYPEWRITER (TTY)
Meaning of TELETYPEWRITER (TTY) in English
Telecommunication standard terms English vocab. Английский словарь стандартных телекоммуникационных терминов. 2012