AT&T MERLIN LEGEND Release 3.1 System Planning Manual page 105

Selecting Line/Trunk Options
b. In the Pattern to Match cell, write the exact pattern to match if you
have more than 1 block of incoming numbers. If you want to match
any pattern, leave it blank.
c. In the Total Digits in Dialed Number cell, write the total number of
digits (0 14) expected in the dialed number; 0 is a wildcard, that is,
match any number. (Contact the service provider for the appropriate
number.)
d. After the match has been made, do one of the following to enable the
system to determine where to direct the call:
5. In the Network Selection Table of the outgoing tables on Form 3b (page
7), the dial pattern represents the dial code for specifying a long-
distance common carrier; the asterisks represent the digits in the
common carrier identification. If the telephone company has directed you
to change this information, obtain the correct entry from them. But note
that the dial pattern must come first. Entry 1 represents current national
standards for specifying long-distance carriers (asterisks represent the
common carrier code wildcard so that anything will match). Entry 0
represents the coming national standards. The remaining entries are
reserved for future use.
NOTE:
The Network Selection Table and the Special Services Table contain
factory settings that reflect U.S. standards for public telephone network
access. These factory settings can be modified to conform to other
standards. However, you should not change them unless the telephone
company explicitly instructs you to do so.
6. In the Special Services Table:
a. In the Pattern to Match cell, write the exact dial pattern to match. (No
wildcards are permitted.)
b. In the Operator cell, indicate Local Operator (OP), Presubscribed
Operator (P), or No Operator service (none) associated with the
pattern.
c. In the Type of No. cell, indicate whether the pattern is for calling
National (N) or International (I).
Local. OUTWATS, 56/64 Digital, Virtual Private Network, or
INWATS.
Other. All services, Other, or No service.
To delete digits, write the number of digits to delete (0 14). (The
system deletes from the first digit onward.)
To add digits, write the exact digits to enter (up to four digits) as a
prefix, for example, 7128. The factory setting is blank. (The system
adds the digits to the beginning of the number.)
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Lines/Trunks