DeafBlind 101: An Introduction to Combined Hearing and Vision Loss
Welcome
Introduction
Experience
Supports
Resources
Final Thoughts
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The Telecommunications Relay Service (TRS) is a free telephone service that allows people with hearing or speech disabilities to place and receive telephone calls. Either party may initiate a TRS call. The service is available in all 50 states and can be used for both local and long-distance calls.

Local telephone companies usually provide TRS services. TRS uses operators, called Communications Assistants (CAs), to facilitate telephone calls between people with hearing and speech disabilities and other individuals. A person with a hearing or speech disability initiates a TRS call by contacting the TRS Relay Center using a teletypewriter (TTY) or other type of text input device and providing the number of the party that he or she wants to call. The CA, in turn, places a traditional voice call to the person. Once the person answers, the CA relays the calling party’s message by voice and converts the called party’s response into text.

Grqaphic depicting how the TTY relay caller types in a call to a relay operator who in turn relays the message to a telephone user.