How To Block Spam Calls To Cell Phone Focuses Students' Attention
A Florida high school teacher has been suspended for five days for using How To Block Spam Calls To Cell Phone to block students' cell phone signals in class. According to the relevant legal person, federal law prohibits the operation, promotion or sale of any type of signal-jamming device because it can jeopardize important secure communications, such as failure to call the police in a timely manner in the event of a crisis. The man involved, science teacher Dean Liptak, argued that the Cell Phone Jammer was deployed only to keep students focused on the classroom, not to distract them from looking down at their phones from time to time. He said,
The phone will have no signal. This is because there is an electromagnetic wave transmitter in the area. Its frequency is the same as that of a cell phone. The signal it emits can interfere with your phone's signal. The How To Block Spam Calls To Cell Phone currently on the market works according to the second method. In fact, the principle is very simple, but it is illegal to use this frequency band privately.