Set the number of characters to be deleted. For example, if this is set to 3, the
telephone will delete the first 3 digits of the telephone number. This is an optional
item.
This feature allows the user to create rules to make dialing easier. There are several different options for dial
rules. The examples below will show how this can be used.
Example 1: All Substitution -- Assumes that a direct IP call can be made to IP address 135.251.222.169.
Using this feature, 169 can be substituted for 135.251.222.169.
Figure 115 - Dial rules table (1)
Example 2: Partial Substitution -- Dialing a long distance call to Beijing requires dialing area code 010
before the local telephone number. Using this feature, 1 can be substituted for 010. For example, to call
62213123 would only require dialing 162213123 instead of 01062213123.
Figure 116 - Dialing rules table (2)
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.
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