Block My Cell Phone Number When Making A Call Avoid Carrying Mobile Phones

Kochem Jutta 2022/06/05

Dudayev, the head of the Chechen republic's mutiny agency, was killed by Russian troops with a mobile phone. There's also a good chance that the phone leaks while it's dormant or even in standby. Since cell phones must maintain a continuous exchange of signals with network communications, it is easy to identify, monitor and track electromagnetic induction bands. There are some mobile phones that have hidden voice calls, which can be converted into voice calls without the phone ringtone or any indication, and indicate the secret. Intelligence and information experts suggest that you should not put your mobile phone next to you, and use the mobile phone instead. From the side, it reflects the necessity of prohibiting the use of mobile phones in key places. Responding to the use of cellphones, it has banned bringing cellphones to China's intelligence agencies in many key places. The use of cell phones, even closed cell phones, is banned in the military and government agencies in corporate offices. In order to better ensure that the application of mobile phones is truly avoided, Block My Cell Phone Number When Making A Call will be installed in such key places to prevent heavy losses from bringing mobile phones or illegal access to mobile phones.

Although the time of the college entrance examination this year was affected by the epidemic and was postponed to July 7-8, in order to ensure the security of information in the examination room, the corresponding measures have not been reduced at all. Operators have issued announcements one after another. During the exam, they will turn on wireless Block My Cell Phone Number When Making A Call according to the requirements of the Education Bureau, which will affect the communication quality of mobile phone users around the school. The communication will not return to normal until the end of the exam. What is the effect of opening cell phone jammer during the college entrance examination? The invigilator at the entrance of the examination room is waving a metal detector. Is it really useful? To know what exactly blocking cell phone signals does, let's first understand how mobile communications work. As a mobile communication device, a mobile phone needs to establish a connection with a nearby base station first, and then access the core network to find a communication destination. In the above process, all information is carried and transmitted by electromagnetic waves. The electromagnetic wave frequency band used by the mobile phone is related to the standard and operator of the mobile phone. But in general, the electromagnetic wave frequency bands used by the three operators are distributed in the 850-4900MHz range. If the organizer of the college entrance examination wants to block the mobile phone signals in the examination room, it is impossible for the 2G/3G/4G/5G base stations near the examination room to not work, otherwise all the communication equipment in this area will not be able to communicate normally. That's the only way to block cell phone signals in the exam room.