AT&T DEFINITY Remote Port Security Device Información técnica Pagina 63

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Keeping Unauthorized Third Parties from Entering the
System
Issue 7 June 2001
4-5
Figure 4-1. Remote Access Call Path
INCOMING
REMOTE
ACCESS CALL
YES
YES
NO
YES
CODE?
VALID
CODE ENTERED
CODE?
VALID
STOP
BARRIER
CODE
REQUIRED?
NO
APPLY SECURITY
VIOLATION NOTIFICATION
STOP
NO
STOP
YES
ROUTE TO ATTENDANT
OR DISCONNECT
STOP
NO
CODE ENTERED
ACCESS DIAL
TONE?
LOG INVALID ATTEMPT
DISCONNECT CALL
SYSTEM DIAL TONE
CALL PLACED
CALL PLACED
SYSTEM DIAL TONE
SYSTEM DIAL TONE
NO
YES
CODE
AUTHORIZATION
REQUIRED?
REMOTE
SYSTEM DIAL TONE
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