Mobile telephony refers to the technology that allows people to make phone calls and send messages using portable devices, commonly known as mobile phones or cell phones. This technology operates through a network of cell towers that transmit signals, enabling communication over long distances without the need for physical connections like wires. The evolution of mobile telephony began with basic voice calls and has expanded to include features such as text messaging, internet access, and various applications. Modern mobile telephony relies on digital networks, such as 4G and 5G, which provide faster data speeds and improved connectivity for users around the world.