The early GSM module was mainly used by mobile phone manufacturers. The mobile phone factory purchased the module directly, and equipped with peripheral devices to produce a mobile phone. The GSM module solves the complex RF transmission and baseband processing problems in mobile phone design, and provides a standard communication interface. Manufacturers no longer need to design mobile phones from the bottom chip level, shortening the design cycle. Five years ago, domestic mobile phone manufacturers almost all purchased foreign finished GSM modules for secondary development and production of mobile phones. In recent years, with the gradual maturity of domestic mobile phone design companies, mobile phone manufacturers have got rid of reliance on GSM modules. To produce mobile phones directly from the chip level.
Due to factors such as years of work and environmental requirements, the GSM module is still used in a wide range of industrial applications, and products of the GSM module can be seen in all walks of life. For example, in the field of vehicle monitoring, the GSM module is used to transmit the GPS data of the vehicle to the vehicle management center; in the power and water system, remote intelligent meter reading is realized through the GSM module, and the user's electricity consumption and water consumption can be monitored in real time; In the surveying and mapping industry, the GSM module is installed for many remote mapping points to realize real-time monitoring. It is no longer necessary to manually collect data.  In the home, a wireless alarm system can be installed. Once a fire or theft occurs, the owner and the owner can be notified immediately. In the foreign countries, many elderly people and children bring a personal tracker to prevent the elderly and children from being lost or accidental. It also integrates the GSM module. It can be said that with the improvement of the network construction of GSM, the application range of the GSM module is also wider and wider.