Telephony has revolutionized the way folks communicate, shaping human interactions, enterprise operations, and technological advancements. From its early beginnings with Alexander Graham Bell’s invention of the phone in 1876 to the delicate mobile networks and digital communications of immediately, telephony has advanced into a critical part of world connectivity. In https://docs.google.com/presentation/d/1tTf-gH7g9cCmgvLRO5weQAOh2xFzm8etJBmkGITGNEw/edit