| 摘要 |
PROBLEM TO BE SOLVED: To change an incoming call communication function automatically to a ringing mode or a non-ringing mode by a portable communication equipment that receives an incoming call notice setting forced revision designation identification(ID) signal. SOLUTION: The system is provided with a radio equipment that sends an incoming call notice function forced designation ID signal to designate a ringing or non-ringing incoming call notice function of a portable communication equipment 20 in a radio wave and with the portable communication equipment 20 that revises forcibly the setting of the incoming call communication function upon the receipt of the incoming call notice function forced designation ID signal, and when the portable communication equipment 20 receives a radio wave from the radio equipment and identifies the incoming call notice function forced designation ID signal, the portable communication equipment 20 revises forcibly the incoming call notice function to the ringing mode or the non-ringing mode. Thus, the communication method of the ID signal that designates the mode revision forcibly is used to revise the setting of the incoming call notice function of the portable communication equipment 20 to the ringing mode or the non-ringing mode so that the incoming call notice function is automatically selected depending on an environment using the portable communication equipment 20 in a limited area. |
