Immediately after the breakup of AT&T there were 7 Regional Bell Operating Companies (RBOCs).As of year-end 2009,there are ____________________ RBOCs.
Correct Answer:
Verified
Q71: _ means that users have the ability
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Q74: A(n)_ is a geographic area such as
Q75: The _ is the telephone line that
Q77: _ is the term for the convergence
Q78: The basic telephone system,or _,has been in
Q79: The _ paved the way for anybody
Q80: A(n)_ does not have a telephone number
Q81: _ is a slower format compared to
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