title: An improved emergency telecommunications system for the deaf.
mesh_terms: D003143:Communication Devices for People with Disabilities; D003638:Deafness; D004631:Emergency Medical Service Communication Systems / Q000331:legislation & jurisprudence; D004632:Emergency Medical Services / Q000331:legislation & jurisprudence; D006801:Humans; D012656:Self-Help Devices; D014481:United States