Archived:Dedicated volume and media buttons not supported in Java (Known Issue)
There is no support for dedicated buttons for volume control or media control from MIDlets.
Some S60 devices have dedicated buttons, which can be used in many applications to control, for example, the audio volume. These buttons do not have an effect to the audio volume in MIDlets. There is also no method to detect the user pressing these buttons. Hence the keys cannot be used to control audio volume in MIDlets.