• • Hearing impairment - severe. • • • Limited dexterity. • • • Limited use of hands/arms. • • • Weak grip.

For some people the features that can be included on a telephone will not solve the problems they have in using a telephone. Plug connection of the handset permits the use of alternatives such as a lightweight headset, which may be very convenient for those who have to use head pointing devices to compensate for absence of arm movement. It also allows for extended cords to be fitted, so that the handset can be mounted on a fixed stand.

New telephones should be designed to allow connection to a range of additional devices.