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Delivering Voice 2023 100% correct questions and answers
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2

March 2023

2022/2023

A+
The public switched telephone network (PSTN) uses pulse code modulation (PCM) to perform which function? Convert an analog signal (human voice) into digital signals so that many calls can travel over the same wire. Which of the following statements is an accurate comparison between packet switching and circuit switching technologies? Packet switching uses the network only when words are spoken, while circuit switching uses the network constantly throughout the entire telephone conversat...
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