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Telephony has revolutionized the best way people talk, 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 at this time, telephony has developed right into a critical component https://drive.google.com/drive/folders/1z6u8cxVg-4Faks70a7La5x6WY55ZNxkx

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