| 摘要 |
PURPOSE:To make a call comfortable and secure by discharging a melody sound for certain fixed time and afterwards switching it to a buzzer tone when an incoming call is not noticed. CONSTITUTION:A control part has a melody set to output the buzzer tone next to melody ringing, and when the signal of incoming call confirmation is received, both the melody and the buzzer are stopped ringing. Namely, the melody is rung for certain fixed time after receiving an output instruction, and when the time ends, an alarm state due to the buzzer ringing is set. Thus, since ringing is continued until executing an action (incoming call confirming operation) to stop ringing and the ringing is successively changed from a soft touch to warning, the alarm is initially raised at a degree not to be noise, and alarming ability can be increased by stages. |
