- Text to Voice TTY based TRS
- Voice Carry Over
- Speech to Speech Relay Service
- Shared Non-English Relay Services
- Captioned Telephone Service
- IP Captioned Telephone Service
- Internet Protocol Relay Service
- Video Relay Service VRS

Michigan State University

There are many types of TRS available for people with hearing and speech disabilities that allow for them to communicate by telephone in a way that is equivalent to communication used by hearing people. 

Telecommunications Relay Services

Telecommunications Relay Service - TRS. (2021, January 27). Retrieved from https://www.fcc.gov/consumers/guides/telecommunications-relay-service-trs

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