If the phone is turned on in airplane mode, what is the call reminder?

Mobile phone: The number you dialed is temporarily unavailable.

Unicom: The subscriber you dialed is power off.

If your mobile phone is in flight mode and the other party can't get in when calling you, others will prompt in Chinese and English that "the number you dialed is power off", which is similar to that of the mobile phone.

Mobile phone flight mode is also called aviation mode, which means that the mobile phone must be turned off during flight to avoid the influence of the transmission and reception of mobile phone signals on aircraft flight. Some mobile phones have this function, which can turn off the signal transmission and reception of SIM card.

Extended data:

Use of flight mode:

You can avoid being disturbed by others, and you can also connect to WIFI without affecting other functions of the mobile phone. The main function of airplane mode is to cut off signal reception, that is, mobile phones can't make calls, others can't call in, can't send and receive short messages, can't use mobile data traffic, and other functions can still be used normally.

Sometimes I want to be alone and not be disturbed by others, so as to improve the efficiency of work and study. Then the flight mode plays a great role and does not affect the WiFi connection. I want to use my mobile phone for entertainment, information inquiry, news and videos. If I don't delay, I won't be isolated from the outside world.

When you sleep at night, turning on flight mode can not only reduce radiation, but also save electricity. I don't want to turn off my phone when I sleep at night, worrying about radiation problems. Some brands of mobile phones don't work even when they are turned off, which is very inconvenient. When you start the flight mode, the radiation is very small, and it saves electricity, so it doesn't delay waking up in the middle of the night to see the time. The alarm function can still operate normally. ?

When the cell phone signal is weak, just turn on the flight mode and then turn it off, and you can search for the signal again, which is faster. When the mobile phone is charging, if you want to charge it faster, you can turn on the flight mode. After the mobile phone stops searching for the received signal, it will speed up the charging process and save charging time.

References:

Baidu Encyclopedia-Flight Mode