Abstract: The invention includes a method and an apparatus for controlling a telephone, particularly a mobile telephone used in a cellular network. Advantageously the user interface of the telephone is voice-controlled, whereby dialling can be made without the use of hands e.g. when driving a car. In the method according to the invention, the task of a speech recognizer can be made easier using phone numbers in the phone's memory (102), ie. on the basis of a check command given by the user the phone selects the number to be recognized from among the numbers stored in its memory, whereby also an incorrect recognition can be automatically corrected.