Internal Dial Plan Table - 3Com NBX 100 Installation Manual

Internal Dial Plan
Table
The Internal Dial Plan table defines the handling of calls placed from
internal devices such as Business Telephones, to a destination; a
destination can be another internal device, such as a local telephone, or
an external telephone line (analog or Digital Line Card) that connects the
NBX 100 to other facilities.
Each table entry contains:
The table ID number (always 1 for the Internal Dial Plan Table).
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The table entry number (a unique number for each entry in the table).
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These numbers are usually in ascending order in the table, but you can
change the order.
Example: You can place a new item near other items of the same type
(that begin with the same digit) in order to help you when you
troubleshoot the configuration file.
The digit(s) that begin the dial sequence. Either single or multiple
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entries can start with the same digit.
Example 1: Most sample tables have a single entry for digit 0 (zero) to
specify how the NBX 100 handles a telephone number which has zero
as the first digit.
Example 2: If you want the NBX 100 to handle calls differently,
depending on whether they start with 90 or 91, you must have one
entry in the table for each of these 2-digit sequences.
The minimum number of digits the NBX 100 collects before making a
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decision.
Example: If you are using a 4-digit dial plan and the telephone
extensions start with 2, then the table entry with 2 in the Digits
column typically has 4 in the Min column. Before making a decision,
the NBX 100 would collect all 4 digits of the extension.
The maximum number of digits the NBX 100 collects before making a
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decision. Often, this value and the Min value are identical, because
you want the NBX 100 to collect a specific number of digits, no more
and no less.
Example 1: For internal extensions you want the NBX 100 to collect
exactly 3 digits (4 in a 4-digit dial plan) before making a decision, so
you would set both Min and Max to 3 (4 in a 4-digit dial plan).
The two columns might be different if the table entry applies to more
than one situation.
Dial Plan Tables 51