Abstract: A method for selecting the language for a character sequence fed into a data processing device, wherein decision trees are trained for different characters on the basis of lexicons of predetermined languages. The decision trees describe language probabilities on the basis of characters in the environments of the characters. The decision trees for at least some of the characters of the character sequence fed into the data processing device are traversed, thus obtaining a probability of at least one language for each character. The language for the character sequence is selected on the basis of the probabilities obtained.

Abstract: In the method of the invention for dialling a telephone number by voice commands, the telephone number to be dialled can be uttered either as one or as several number strings or identifications, which are recognized in order to find out which number string or identification was uttered. An incorrectly recognized number string or identification will be marked incorrect.