Telephone technology refers to the systems and devices that enable voice communication over distances. The first telephone was invented by Alexander Graham Bell in 1876, allowing people to talk to each other in real-time, regardless of their location. Modern telephones have evolved from simple landlines to advanced smartphones, which combine calling features with internet access, messaging, and various applications. Today, telephone technology includes both analog and digital systems. VoIP (Voice over Internet Protocol) allows users to make calls using the internet, while mobile networks enable wireless communication. This technology has transformed how we connect, making communication faster and more accessible than ever before.