Not all operators around the world are eager to shut down their GSM networks. European GSM operators are more cautious. French operator Orange said it will not shut down the GSM network on a large scale. Telenor, the Norwegian telecommunications operator, recently announced that it will close its 3G network before 2020, but it will close its GSM network before 2025, when its third-generation w-cdma network will no longer exist. European operators should not try to shut down the GSM network, nor is it to consider the large number of communication needs between devices. If they rush to shut down GSM, the current European operators can still benefit from mobile international roaming communications. , Will face EU economic and regulatory issues. In the Chinese market, there are still a large number of elderly people using non-smart phones based on GSM. And basic voice and text messaging services still use the GSM network. Communication equipment based on GSM networks is still very important today, such as wireless alarm systems, robots and other tools and equipment. If you need to block these tools or mobile voice communication and messaging services, you may need a GSM signal jammer, portable or desktop. Portable jammers are easy to use anywhere, and desktop computers are more powerful.

In addition to the innovation of the new mobile phone baseband chip technology and the strong support of the operator’s network system, today’s smart phones can also achieve smooth Internet access, watching video, remote voice and other functions. During a 2G network call, the 3G network can access the Internet, and the 4G network can view video. With the continuous improvement of network formats, mobile phone functions have also undergone tremendous changes. Now, with 4G networks spreading across the country, operators and telecom operators have begun to actively allocate 5G, hoping to further expand the network format. With the advent of 5G, 2G networks (GSM) will gradually disappear. People in the communications industry have expressed different views on this issue. The most important thing is to understand the impact of the withdrawal of 2G networks on future user communications. The biggest role of the 2G network is to provide voice services and SMS services for a large number of mobile users. Therefore, in the early days, we were able to use feature phones to make calls and send text messages smoothly, and feature phones were supported by 2G networks. According to reports, the 2G network was able to implement some Internet functions at the time, and there seemed to be no place to connect to the Internet except for making calls and sending messages.

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