EXPANSION TABLES ASSIGNED:
EACH ENTRY IN AN EXPA?dSION
TABLE MAY HAVE ADDED
RESTRICTIONS BY ASSIGNING
ADDITIONAL TABLES TO THE ENTRY.
TRUNK
GROUP CORs
FIRST
DIGIT "1"
EXPANSION
TABLE
21
TABLE
FOR EACH CALL ORIGINATION:
1 - OPERATOR ACCESS
2 - TOLL PREFU( + CO CODE
3 - TOLL PREFX + AREA CODE
Figure 9 -4 Cont rol Pla n 1
SECT I ON MITL9105/911
l-409
l-209
l-707
ALLOW ALL CALLS
BEGINNING WITH
ALLOW ALL CALLS
BEGINNING WITH 1613~592-2122
2122
51
ALLOW - ALLOW ALL CODES EXCEPT
THOSE LISTED IN THE
RESTRICTION TABLE.
DENY - DENY ML CODES EXCEPT
THOSE LISTED IN THE
RESTRICTION TABLE.
o-0 9 6 -2 1 2 -N A
CONTROL
PLAN 1
FIRST
DIGIT N(Z-9)X
-
N = ANY DIGIT 2 - 9
X = ANY DIGIT 0 - 9.
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