Some customers are asking us about and inquiring about cell phone signal jammers, and they often ask for such functional requirements: it is necessary to perform separate interference for individual mobile phone numbers, or to open and use individual mobile phone numbers without interfering with them. This is actually our Call it a blacklist or whitelist of your phone. So, do conventional cell phone signal jammers have blacklist and whitelist functions?

The answer is very clear. As a professional manufacturer of cell phone signal jammers, we will tell you very clearly and definitely that conventional signal jamming equipment does not have the functions of blacklisting units and whitelisting.

This is because the working principle of our most common cell phone signal jammers is relatively simple. Most of the jamming signals (white noise) are amplified by the signal, pushed by power and gradually amplified, and finally transmitted through the antenna. When a mobile phone user enters the coverage area of the interference signal, for different mobile phone numbers, the interference signal is not targeted, and there is no analysis or analysis function, so the interference effect for different mobile phone numbers is to carry out the signal indiscriminately. Interference, and this indifference is not only the difference in mobile phone numbers, it will not distinguish the operator the mobile phone belongs to, nor which network standard the mobile phone is running on, such as 2G, 3G, 4G, and 5G.