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Example 2: Substitution – To dial a long distance call to Beijing requires dialing area code
010 before the local phone number. Using this feature 1 can be substituted for 010. For
example, to call 62213123 would only require dialing 162213123 instead of 01062213123.
Example 3: Addition – Two examples are shown. In the first case, it is assumed that 0 must
be dialed before any 11 digit number beginning with 13. In the second case, it is assumed
that 0 must be dialed before any 11 digit number beginning with 135, 136, 137, 138, or 139.
Two different special characters are used.
x – Matches any single digit that is dialed.
[] – Specifies a range of numbers to be matched. It may be a range, a list of ranges separated
by commas, or a list of digits.