Lucent Technologies MERLIN LEGEND 6 System Manager's Manual page 181

MERLIN LEGEND Communications System Release 6.0
System Manager's Guide 555-660-118
4 Features and Applications
Features
an FRL of 6 has the most privileges (any route may be used).
some examples.
Table 4–11. Facility Restriction Levels
Extension FRL
0
0
1
1
2
2
3
3
4
4
5
5
6
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.
!
SECURITYlALERT:
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:
Route FRL
0 only
1 and up
0 and 1
2 and up
0–2
3 and up
0–3
4 and up
0–4
5 and up
0–5
6
Any
FRL 0 for restriction to inside calls only
Allowed
Yes
No
Yes
No
Yes
No
Yes
No
Yes
No
Yes
No
Yes
Issue 1
February 1998
Page 4-49
Table 4–11 shows