GSM (Global System for Mobile Communications) is a widely used digital cellular network technology that enables mobile communication through wireless connections. It utilizes radio waves to transmit voice and data signals, allowing people to make phone calls, send text messages, and access the internet using their mobile devices. The combination of the 📶 signal symbol and 📱 mobile phone emoji represents the essence of GSM technology, highlighting its role in providing seamless connectivity and communication on a global scale.