Radio communication apparatus capable of notifying reception of a call signal in a perceptual mode determined by counting a number of times of the reception

A radio communication apparatus comprising:

• receiving means for receiving call signals, a first number of said call signals being addressed to the radio communication apparatus, each of said first number of call signals being a specific call signal, and a second number of said call signals not addressed to the radio communication apparatus, each of said second number of call signals being other than a specific call signal;
• determining means for determining whether or not the received call signal is a specific call signal and for producing a received signal whenever it is determined that the received call signal is a specific call signal;
• counting means connected to said receiving means and given an initial count for counting up from said initial count one by one in response to said received signal to produce a reception count signal representative of a reception count of said specific call signal and indicative of the number of times said specific call signal has been received;
• audibly notifying means for giving notice of receiving said specific call signal with a perceptually changeable notifying mode which is perceptually changed and which is specified by increasing a volume of an audible tone determined by said reception count of the specific call signal;
• a reset switch for manually resetting said audible tone;
• and
• controlling means connected to said counting means and responsive to said reception count signal for controlling the volume of said audible tone to vary said volume of the audible tone from one to another in accordance with said reception count represented by said reception count signal to keep the volume of the audible tone constant and to stop the audible tone after lapse of a predetermined duration even when said apparatus is not reset by the reset switch.