If you require the use of telecommunication relay services, dial 7-1-1 to be connected to a specially trained communications assistant from your state relay provider. You have the option to dial 7-1-1 with your TTY from anywhere in the United States.
Relay calls available with 7-1-1 include:
Toll-free Relay Service numbers disconnected
All toll-free numbers associated with AT&T Relay Services are disconnected as of August 2015, including: TTY, Voice, ASCII, Telebraille, and STS.