Was the use of the phone for a little blind elderly lady bestimmt.Durch the big button is able to come back to telefonieren.Dazu yet for the deaf a chic desing, so that all acoustic stuff to be seen by large clear signal lights können.Der intergrated AB makes its best Arbeit.Es is easy to use, the elderly lady can handle it very well and do not want it missen.Das programming had a sighted person make Dia because the sales of manual and telephone for the old lady no longer implement ist.Aber after a short explanation you can dasTelefon wonderful nutzen.Es is also an adjustment protection installed so that they do not adjust identically with incorrect operation of the keys, the phone kann.Ist a very good Gerät.Habe sometimes, after the phone without AB looked, but unfortunately none is found in the way.