Telephony has revolutionized the way people communicate, shaping human interactions, business operations, and technological advancements. From its early beginnings with Alexander Graham Bell’s invention of the phone in 1876 to the delicate cell networks and digital communications of right this moment, telephony has advanced into a critical part of world https://docs.google.com/file/d/1e5LdeuodRPjMw2uHlI-vZwsgt-TC8Hl_