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What is a telecommunication relay service?

April 26, 2017amplifiers deaf Devices hearing speech communication device hearing speech communication service Relay service Telecommunication telecommunication relay service telephone

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What is a telecommunication relay service?

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A telecommunication relay service helps persons with a hearing loss or speech impairment communicate with people who have a regular phone. The hearing-impaired person calls another person with the help of a communications assistant (CA). The hearing-impaired person calls using a text telephone (TTY), which the CA then verbally relays to the other caller. The CA then types the person’s response back to the TTY caller. There are two types of telecommunication relay services: voice carry-over (VCO) and hearing carry-over (HCO). With VCO, the caller speaks directly to the other person, but reads the response typed by the CA. With HCO, the caller listens to the other caller, but types in his/her response. Telecommunication relay services are free of charge and may be reached through an 800 or other toll-free number.