New York Relay Service is a statewide service that connects standard (voice) telephone users with deaf, hard-of-hearing, deaf-blind, speech-disabled, or late-deafened people who use text telephones (TTYs) or voice carry-over (VCO) phones. This service allows TTY or VCO users to communicate with standard telephone users through specially trained Relay Operators. Calls can be made to anywhere in the world, 24 hours a day, 365 days a year with no restrictions on the number, length, or type of calls.