"*" and "on the phone.
The function of this key is "*" secret key. When talking to someone on the phone, if you want to say something that has nothing to do with the other person, or you don't need the other person to know, you can "cut off" the other person by gently pressing the * key. When talking to the other party again, just leave the * key with your finger.
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"Memory key. After pressing the phone number, put down the receiver when you hear a "busy tone". When dialing again, you don't need to dial that number, just press "
"Yes. If the indicator light flashes, the phone will automatically connect. If it is a "busy tone", put it down again and press "Re" later.
"Key, until connected.
Use the mobile phone with caution under special circumstances 1. Use with caution in thunderstorm weather. Due to the interference of lightning, the frequency hopping of the telephone is enhanced, which is easy to induce accidents such as lightning strike and machine burning.
2. The plane should be turned off. Otherwise, it is likely to lead to the failure of the electronic control system of the aircraft, leading to the flight out of control and accidents. Because the aircraft navigation system is most afraid of high frequency interference.
3. Fixed use of mobile phones in clinics, operating rooms and laboratories equipped with electronic medical equipment in hospitals. Because such as nuclear magnetic vibrator, B-ultrasound instrument, electrocardiogram instrument, CT instrument, etc. They are very sensitive to the high-frequency signals sent by mobile phones, and once they are disturbed, misdiagnosis accidents will occur.
4. Gas stations are prohibited. Because the refueling counter is electronically controlled, if it is disturbed by the signal of mobile phone, it will easily affect the accuracy of metering and even cause a fire.
5. The blasting site or other potential blasting danger areas should be closed. To prevent the signal from the phone from triggering the explosive device.