Instruction manual

Security goals tables
Issue 9 May 2003
4-15
Prevent
unauthorized
outgoing calls
Limit calling
permissions
Switch dial
restrictions
Set outward/toll
restrictions
Set allowed/
disallowed lists
Limit access to
ARS route
patterns
Facility restriction
level (FRL)
(System 25 and
MERLIN
LEGEND
Communications
System only)
Set lowest
possible value
Ensure the
integrity of
assigned call
restrictions on
loop start
facilities
Automatic call
restriction reset
(MERLIN Plus
Communications
System only)
Activate feature
Turn off Remote
Access when not
needed
Remote access
administration
(System 25 and
MERLIN
LEGEND
Communications
System only)
Deactivate
feature
Deactivate
feature
(MERLIN Plus
Communications
System R2 only)
Program feature
button
Remote access
administration
(MERLIN II
Communications
System only)
Deactivate
feature from
administration
Table 4-2. Security goals: MERLIN II, MERLIN LEGEND, MERLIN Plus, and
System 25 communications systems — Continued
Security Goal Method Security Tool Steps
Continued on next page