STATION USER

DIALS ARS

ACCESS CODE

[401]

NUMBER DIALED ON EMERGENCY NUMBERS LIST (911, AND

THREE CUSTOMER NO DEFINED 7-DIGIT NUMBERS

[601-603] I

YES

VOICE TERMINALS “RESTRICT OUTWARD CALLS” = YES

STATIONS [13]

YES

 

VOICE TERMINAL

 

NUMBER DIALED

 

 

ASSIGNED TOLL

 

INTERNATIONAL,

 

 

RESTRICTION

 

OPERATOR, OR

OTHER

 

CLASS 1-4

 

OTHER

NO

NO

(SHEET 2)

 

 

 

STATIONS

 

 

 

 

[14]

 

 

 

 

 

 

 

 

 

YES

OPERATOR

 

 

 

 

 

CALL ROUTED

 

 

CALLING USER

VIA LOCAL

 

RECEIVES SYSTEM

CO FACILITY

 

REORDER TONE

 

 

 

 

NUMBER DIALED ON TOLL CALL ALLOWED LIST? 64 CODES MAY

BE DIVIDED INTO 4 LISTS OF YES ANY LENGTH

TOLL ALLOWED [1-3]

NO

STATION USER

RECEIVES SYSTEM

REORDER TONE

INTERNATIONAL

ROUTE CALL

VIA LOCAL

CO FACILITY

ROUTE CALL

VIA

INTERNATIONAL

ROUTING

PATTERN

[ 402]

Figure 2-8. Automatic Route Selection Flow Chart (Sheet l of 2)

2-54

Page 75
Image 75
AT&T AT&T manual Automatic Route Selection Flow Chart Sheet l