3Com NBX 100 Installation Manual page 120

120 C 2: C D P
HAPTER ONFIGURING THE IAL LAN
PreTranslatorOperation Create 1 1 2 prepend 3
Explanation: Creates the second operation associated with PreTranslator
1, PreTranslatorEntry 2. Defines a prepend operation that adds the digit 3
at the beginning of the 3-digit string (created by the previous operation).
The incoming numbers from 000 through 199 become numbers from
3000 through 3199.
The Incoming Dial Plan table may already contain this line; if necessary,
modify the line to match.
TableEntry Create 2 4 3 4 4 Internal 0 0
Explanation: In table ID 2 (Incoming Dial Plan table) entry 4 instructs the
NBX 100 to look for 3 as the first in a sequence of 4 digits (both Min and
Max are 4). If the system finds such a sequence, it assigns Internal as the
call class. The system does not use the number in the priority column, so
it remains 0 (zero). The NBX 100 directs the call to route 0 (zero), the
default route for internal extensions.
Customer Requirement 2
Requirement: The company is located in New York, and has two long
distance telephone carriers: ABC, which provides a low-cost service to
four Boston area codes (508, 617, 781, and 978), and DEF, which
provides service to the rest of the United States. You want to use one
4-port line card, connected to analog trunk lines owned by ABC, for all
calls to the Boston area. You want to use the T1 line, which you lease
from DEF, for all other long distance calls within the United States.
The system users dial 9 to get an outside line, 1 to obtain a long distance
carrier, 3 digits to specify the area code, and 7 digits to specify the
telephone number. To ensure that long distance calls are handled in the
least-cost way you want, you place these entries in the Internal Dial Plan
table. The numbering of the entries assumes that the table has 46 entries
before you make any additions. Columns in each table entry are titled:
Command, Table Number, Entry Number, Digits, Min, Max, Class, Priority,
and Route Number.