Block Unknown Calls On Cell Phone
The development of modern communication technology by leaps and bounds requires technological security companies to keep pace with the times and continuously develop and strengthen their own strengths to cope with multiple challenges. The widespread popularity of mobile phones not only brings convenience to people, but also raises new issues for voice security and confidentiality. The leakage of mobile phone recording has accelerated the promotion and use of Block Unknown Calls On Cell Phone . The demand for mobile jammers is increasing. The status in social life is becoming more and more important. At present, there are many types of mobile phone signal jammers on the market, and basically there are two working modes. White noise and ultrasonic interference mode. As the name suggests, mobile jammers that use white noise mode will emit irregular noises to cover up normal conversation sounds. Disadvantage: White noise will make noise when working. Therefore, cell phone jammer is only suitable for use when both parties know about it. The mobile phone jammer using the ultrasonic interference mode emits an ultrasonic interference that is not perceivable by the human ear. It has no harm or impact on the human body, but it will cause huge interference to all devices that rely on pickups to record sound.
The frequency band it emits impacts the pickup film of the pickup head of recording and video equipment, causing irregular frequency fluctuations on the pickup film, making these recording equipment record all irregular noise. Contrary to white noise, it does not emit any sound and has no effect on the human body. Because the ultrasonic interference signal is beyond the range of human acceptance, the human ear cannot hear the noise. Usually there are not many people in the conference room, and people gather only when they need to have a meeting, and at the same time, there is a situation where mobile phones are gathered. When the phone is buckled, you don't know which phone will hide the danger. If you open the recording software at will, it may leak the content of the entire conference room. Therefore, installing Block Unknown Calls On Cell Phone is very necessary and can also effectively assist the confidentiality of the conference content. What are the precautions for selecting a mobile phone jammer in a conference room? Choose a mobile phone signal jammer from a regular manufacturer. It is best to test the effect of shielding and recording on the spot. In order to ensure the quietness of the shielding and the health of the body, try to use the mobile phone signal jammer in the ultrasonic interference mode, because ultrasonic waves do not interfere with people. Yes, and it's quiet during work, and the concealment effect is also very good. Open when you need to use it, and close it after use. You pay for what you pay for. When the budget allows, try to choose good-quality equipment, which can save a lot of unnecessary troubles.