Deaf | Publications & Videos
Telecommunications for the Deaf and Hard of Hearing (TDI)
Who We Are
Telecommunications for the Deaf and Hard of Hearing (TDI) provides information regarding telecommunications, information technology and emergency preparedness for the deaf. The TDI publication program includes:
- Annual TDI National Directory and Resource Guide (Commonly known as The Blue Book)
- Quarterly TDI World magazine
- TDI eNotes electronic newsletter
Other resources include links to federal and state agencies; a glossary of abbreviations and acronyms; links to national and international organizations and associations; a list of vendors that sell TTYs, visual and tactile alerting equipment, assistive listening devices and systems; and other useful links, e.g., the U.S. Department of Justice ADA, Federal Communications Commission (FCC), Gallaudet University, and more.