In order to change a subscriber alert mode of a radio pager from an audible alert mode to an inaudible alert mode, a normally open function switch is depressed while the radio pager operates in the audible alert mode. The function switch is subsequently depressed. Following this, a timer is set to count...http://www.google.fr/patents/US5463368?utm_source=gb-gplus-shareBrevet US5463368 - Method of setting an inaudible alert mode in a radio pager
Method of setting an inaudible alert mode in a radio pager
