AT&T MERLIN LEGEND Release 3.1 System Manager's Manual page 20

Release 3.1 Enhancements
Programmable Second Dial Tone Timer
Beginning with Release 3.1, the system manager can now assign a
second dial tone timer to lines and trunks to help prevent toll fraud (for
example, when star codes are used). After receiving certain digits dialed
by a user, the CO may provide a second dial tone, prompting the user to
enter more digits. If this second dial tone is delayed, and the user dials
digits before the CO provides the second dial tone, there is a risk of toll
fraud or the call being misrouted. The second dial tone timer enables the
system manger to make sure that the CO is ready to receive more digits
from the caller.
A Disallowed List containing numbers frequently associated with toll
fraud
Beginning with Release 3.1, Disallowed List #7 now contains default
entries, which are numbers frequently associated with toll fraud. By
default, Disallowed List #7 is automatically assigned to both generic and
integrated VMI ports used by voice messaging systems. The system
manager must manually assign this list to other ports.
Pool Dial-Out Code restriction for all extensions by default
Beginning with Release 3.1, the default setting for the Pool Dial-Out Code
restriction has changed to restricted. No extension or remote access user
with a barrier code has access to pools until the restriction is removed by
the system manager.
Outward restrictions for VMI ports by default
Beginning with Release 3.1, ports assigned for use by voice messaging
systems (generic or integrated VMI ports) are now assigned outward
restrictions by default. If a voice messaging system should be allowed to
call out (for example, to send calls to a user's home office), the system
manager must remove these restrictions.
!
New default Facility Restriction Level (FRL) for VMI ports
Beginning with Release 3.1, the default FRL for VMI ports has changed to
0, restriction all outcalling.
New default FRL for the Default Local Route Table
Beginning with Release 3.1, the default FRL has changed to 2 for the
Default Local Route Table. Now, 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.
xxii
System Manager's Guide
Security Alert:
Before removing restrictions, it is strongly recommended that you
read Appendix A: "Customer Support Information."