As everyone knows, the current mobile phone signal standards are 2G, 3G, 4G, 5G. Some customers ask us about the products provided by the signal blocker manufacturer. During the process of mobile phone signal blocking, the mobile phones within the shielding range are voice and data. Shielded separately or shielded together? Is it possible to only block the data and keep the basic 2G voice?
As early as a few years ago, when there were only 2G, 3G, and 4G mobile phones on the market, the base stations of operators at that time could generally divide the transmission frequency bands of base stations in an orderly manner through different frequency bands for frequency bands of different standards. The voice of 2G or 3G is basically used, and 4G is dedicated to data transmission. However, in recent years, with the popularization of 5G and the maturity of 4G and 5G technologies, voice and data can be used at the same time on the 4G and 5G frequency bands. When the signal blocker is shielding mobile phone signals, the original frequency band division and frequency adjustment only need small adjustments, but it directly affects the original frequency band, and it is no longer possible to strictly distinguish voice and data. Blocked.
Therefore, the current signal shielding device, unless we provide customized frequency band modules and more detailed frequency band division, the vast majority of mobile phone signal shielding devices are shielding both voice and data, and can no longer be shielded separately. .