____________ is used by IM and other applications that provide voice services over lower-speed digital circuits.
a. pulse code modulation
b. adaptive differential pulse code modulation
c. Voice conversation
d. code modulation
e. phase modulation
Ans: b. adaptive differential pulse code modulation
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Fill in the blank(s) with the appropriate word(s).
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Fill in the blank(s) with correct word(s).
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