Hand tremor . To meet this requirement a telephone must have some form of non-slip base or pads. There is also a correlation between the weight of the telephone and the type of non-slip base required. A non-slip base is a desirable feature on any telephone which is not designed exclusively for fixed mounting. Fixing points which are provided for wall-mounting should, where appropriate, allow for mounting on a horizontal surface for users who require a steady terminal.
Telephone features that make a difference .