GSM plugs

GSM

— connection via mobile network; the term "GSM" in this case is rather arbitrary, since such sockets can also work in more modern 3G and 4G LTE networks. To use such a connection, you need to purchase a starter package of a mobile operator and install a SIM card in a smart socket. The control itself via GSM, usually, is carried out using calls and/or SMS to the telephone number of the outlet; often also provides for the possibility of sending response notifications (text or even voice). To protect against unauthorized access, a list of allowed numbers is stored in the device's memory.

The key advantage of this connection method is the ability to access the outlet settings from anywhere in the world where there is mobile coverage. In addition, you can make calls and send SMS from any mobile phone, it does not have to be a smartphone. On the other hand, control over the mobile network provides significantly fewer options than other protocols, and the communication itself requires financial costs. So it hardly makes sense to pay attention to such outlets if most of the time they have to be managed “locally”, from the same home or office where these devices are installed.