Will the flight mode SMS be delayed?

1, SMS will be delayed in airplane mode.

2. The flight mode of mobile phone 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. The flight mode function in some mobile phones can be realized by some software, such as the aviation mode in Systemtools in S60 software. This mode can turn off the function of the SIM card, so that the mobile phone is in a state of not sending and receiving signals, and does not affect the operation of other functions of the mobile phone (generally, the mobile phone cannot operate without the SIM card). On September 29th, 20 14, european aviation safety agency (EASA) said: China plans to allow mobile phones to use airplane flight mode in 20 18. The GSM/GPRS module of the mobile phone is closed in flight mode, so the mobile phone will not actively send paging signals to the base station, that is, it will not try to contact the base station, but it can generally make emergency calls (similar to the principle of no sim card, in this mode, the mobile phone can generally dial 1 10, 120,1kloc). ).

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