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Baud rate is the number of samples per second. Data transfer rate is the number of bits per second. Since the analog phone line can have more than two values at any one sample, this translates to more bits per second than baud.

There is a tendency to confuse baud rate with data rate. The two terms are not always the same.

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Q: Why A tradition phone line has a sampling rate of 2400 baud but a baud is not a bit while the data transfer rate of telephone line is greater then 2400 signal per second?
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