An IP phone user has dialed “15152211221”.
Which of the following route patterns will be used?
A.
1515[^0-1]2[12]+[34]?
B.
1515[^0-1]4[012]+
C.
1515[0-1]4[123]
D.
1515[0-2]412[012]+
E.
This will not match any of the patterns.
Explanation:
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