“Telecommunications relay services for people with hearing or speaking disabilities link telephone conversations between individuals who use standard voice telephones and those who use text telephones (TTYs). Calls can be made from either type of telephone to the other type through the relay service.”
CaptionCall is an internet-based service free for people with hearing loss through a program funded by the Federal Communications Commission (FCC). On CaptionCall, the live phone conversation appears in easy-to-read text on a large screen.
“States provide relay services for local and long-distance calls. Consult your local telephone directory or list from the FCC for information on the use, fees (if any), services, and dialing instructions for your area.”