FROM
SHEET 1
NUMBER DIALED
WITHIN HOME
NPA?
SYSTEM [30]
YES
NO
AREA CODE ON
YES
NPA ROUTING
TABLE [300]
NUMBER DIALED
ON HOME NPA
EXCEPTION
LISTS
[500]
V1 ONLY: NUMBER
DIALED ON SPECIAL
NUMBERS LIST
(ALL 800,900,
AND TELEX 510,
NUMBER DIALED
ON FNPA
NO
EXCEPTION
YES
CALL ROUTED
LIST
VIA ASSOCIATED
ROUTING PATTERN
610, 710, AND
810 CODES)
YES
CALL ROUTED
VIA LOCAL
CO FACILITY
NO
NO
HOME AREA CODE
YES
CALL ROUTED
ON NPA ROUTING
VIA ASSOCIATED
TABLE [300]
ROUTING PATTERN
NO
YES
CALL ROUTED
CALL ROUTED
VIA
ASSOCIATED
ROUTING
PATTERN
CALL ROUTED
VIA ASSOCIATED
ROUTING PATTERN
VIA LOCAL
CO FACILITY
Figure 2-8. Automatic Route Selection Flow Chart (Sheet 2 0f 2)
2-55