Telephony has revolutionized the way in which people talk, shaping human interactions, business operations, and technological advancements. From its early beginnings with Alexander Graham Bell’s invention of the telephone in 1876 to the subtle cell networks and digital communications of in the present day, telephony has evolved into a essential https://docs.google.com/file/d/1e5LdeuodRPjMw2uHlI-vZwsgt-TC8Hl_