| 摘要 |
PROBLEM TO BE SOLVED: To surely receive an incoming call from an opposite party whose call is desired even when a power supply voltage drops around a low voltage threshold. SOLUTION: In this incoming call permission method, at the arrival of an incoming call when the mobile phone is started in a low voltage mode, a control section 3 detects caller number information data from a digital signal demodulated by a radio section 2, compares the caller number information data in a telephone directly with its attribute data so as to discriminate whether or not the incoming call to be accepted. Furthermore, the service life of a battery is extended by rejecting an undesired incoming call (an incoming call with less importance) so as to surely receive a required incoming call over a long time. |
