Telephony has revolutionized the best way individuals communicate, shaping human interactions, enterprise operations, and technological advancements. From its early beginnings with Alexander Graham Bell’s invention of the telephone in 1876 to the sophisticated mobile networks and digital communications of immediately, telephony has evolved into a important component of global connecti... https://drive.google.com/drive/folders/1z6u8cxVg-4Faks70a7La5x6WY55ZNxkx