Knowledge Base (KB-5477)
Telecommunications Relay Service (TRS) is a telephone service that allows persons with hearing or speech disabilities to place and receive telephone calls. There are several forms of TRS, depending on the particular needs of the user and the equipment available. For an explanation of each of the different types of services listed below please go to the FCC website.
For a list of companies that provide access to each type of relay service please click on the appropriate link below.
Text-to-Voice TTY-based TRS (“Traditional” / 7-1-1)
(Includes Voice Carry Over, Hearing Carry Over Services, and Speech-to-Speech (STS) Relay Services)
Sprint Relay Services
Speech-to-Speech (STS) Relay Services:
Hamilton Relay
Sprint Relay
Shared Non-English Language Relay Services
CSDVRS Video Relay Service
Global VRS
Hamilton Relay - Spanish Relay
Purple Communications Video Relay Service
Sorenson Communications Video Relay Service
Sprint Spanish Relay Service
Captioned Telephone Service
CaptionCall
CaptionMate
ClearCaptions
Hamilton Relay
Innocaption
Olelo
Sprint CapTel and Web CapTel
Video Relay Service (VRS)
Convo Communications Video Relay Service
Global VRS
LifeLinks Video Relay Service
Purple Communications Video Relay Service
Sorenson Communications Video Relay Service
ZVRS Video Relay Service
Updated: June 21, 2022