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Telecommunications for the Deaf and Hard of Hearing (TDI)

8630 Fenton Street
Suite 121
Silver Spring, MD 20910

(301) 563-9112

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Contact Information

Main
(301) 563-9112
TTY/TTD
(301) 589-3006

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.

Who We Serve

Languages Spoken
English
,
Sign Language
Service Area(s)
Statewide

Cost & Payment Methods

Fee Structure
Call for Information

Family
No
Other Eligibility Criteria
No residency requirement

Available 24/7
No

Intake Process
Phone
Self Refer
Yes