Abstract: The present invention relates to a method for automatically deactivating a keypad lock and a communication apparatus for performing the method, wherein when in locked mode, the communication apparatus does not react to any other keypad command but a predetermined unlocking signals and signals from numeric keys. It is not necessary that the user should have to input unlocking signals before dialing a phone number. The method comprises the steps of: 1) determining whether or not it receives a first numeric key signal from the keypad, 2) then waiting for a first waiting delay to determine whether it receives a plurality of numeric key signals, 3) and at last determining whether it receives a dialing signal in a second waiting delay, 4) if all answer of above is yes, the keypad lock being deactivated and a communication connection being setup.