Blocking Cell Phone Number Text Messages Block Internet Calls

Now that 4G technology has matured, in order to allow mobile phone users to have a better experience, VoLTE (high-definition voice calling) technology has been developed, which can use 4G network to make calls and surf the Internet. The mobile phone uses the data channel of the 4G network to make calls and surf the Internet, and the call quality is clearer than that of 2G and 3G. Dropped due to handover failure. Network operators use base stations to transmit wireless signals to serve users. The range of a base station is limited. Therefore, an area may have many base stations. Even with Blocking Cell Phone Number Text Messages , it's hard to mask the whole signal. The combination of all base stations is a network system. Each base station has its own range. If this range is exceeded, the phone must change base stations to keep the phone on the network at all times.

It was learned from China Mobile Guizhou Company that during the college entrance examination, all examination rooms will be equipped with metal detectors and use Blocking Cell Phone Number Text Messages . During the college entrance examination, high-power cell phone jammer will be turned on around the examination room to block mobile communication signals, walkie-talkie signals, wireless transmission signals, etc. Testing locations may be affected. According to the technical staff of China Mobile Guizhou Company, the final installation test of the high-power mobile phone signal blocker has been completed to ensure that all communication signals in the examination room are blocked during the college entrance examination. On the same day, the reporter saw outside the examination room that a 50-centimeter-long gray box was installed in each examination room. This is the high-power mobile phone signal jammer installed uniformly throughout Guizhou this year. At present, the shielding device has completed the final installation test to ensure that all communication signals in the examination room during the college entrance examination are shielded.