4–11 facility restriction levels – Lucent Technologies MERLIN LEGEND 6 User Manual
Page 181
MERLIN LEGEND Communications System Release 6.0
System Manager’s Guide
555-660-118
Issue 1
February 1998
Features and Applications
Page 4-49
Features
4
an FRL of 6 has the most privileges (any route may be used).
Table 4–11
shows
some examples.
Table 4–11. Facility Restriction Levels
In Release 3.1 and later systems, default FRLs help system managers guard
against toll fraud. These restrictions are automatically applied to routes, voice
messaging ports, and to the barrier codes of remote access users, as follows:
■
Routes. The default FRL is 2 for default local routes, so system managers
can easily change an extension default of 3 to 2 or lower in order to restrict
calling. No adjustment to the route FRL is required.
■
Voice Messaging Ports. The default FRL is 0, restricting all outcalling.
■
Barrier Codes. The default FRL is 0, restricting all but inside calls.
SECURITY
l
ALERT:
!
The MERLIN LEGEND Communications System ships with ARS activated
with all extensions set to Facility Restriction Level 3, allowing all
international calling. To prevent toll fraud, ARS Facility Restriction Levels
(FRLs) should be established using:
■
FRL 0 for restriction to inside calls only
Extension FRL
Route FRL
Allowed
0
0 only
Yes
0
1 and up
No
1
0 and 1
Yes
1
2 and up
No
2
0–2
Yes
2
3 and up
No
3
0–3
Yes
3
4 and up
No
4
0–4
Yes
4
5 and up
No
5
0–5
Yes
5
6
No
6
Any
Yes