Telephones - What features do disabled people need?
Speech impairment - severe. 5,000 per million.


Image of person's mouth.
People with significant problems with voice communication may opt for text-based communication. In many cases the problem may be linked with deafness, and the textphone will be the chosen facility. Others may have synthetic speech communicators, and will need to interface these with their Telephone terminals.


Essential Features
Microphone amplification. Key feedback - audible.
Text send - keyboard . Text display - visual.
Text send protocol select. Non-slip base.
Desirable Features
Coupling to computer.  


Disability category links
Hearing impairment - moderate. Speech impairment - severe.
Hearing impairment - severe. Limited dexterity.
Deafness. Limited use of hands/arms.
Visual impairment - moderate. Weak grip.
Visual impairment - severe. Hand tremor.
Blindness. Cognitive impairment.
Deaf-blindness. Restricted mobility (lower limb).
Speech impairment - moderate.  




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