Telephony

Telephony refers to the technology that enables people to communicate over distances using voice transmission. It involves the use of devices like telephones and communication networks that convert sound into electronic signals, transmit these signals through wired or wireless channels, and then convert them back into sound at the receiving end. Modern telephony includes traditional landlines, mobile phones, and internet-based services such as VoIP. It allows real-time conversation, making it a fundamental tool for personal, business, and emergency communication globally.