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MERLIN LEGEND Communications System Release 6.1
Installation
555-661-140
Issue 1
August 1998
Prior Releases Features and Enhancements
Page li
Release 3.1 Enhancements (March, 1996)
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 misrouting the call. The second dial tone timer enables the
system manager to make sure that the CO is ready to receive more digits from
the caller.
Security Enhancements
The sections below outside security measures that are implemented in Release
3.1 and later systems.
Disallowed List Including Numbers Often
Associated with Toll Fraud
A factory-set Disallowed List 7 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 (voice messaging
interface) ports used by voice messaging systems. The system manager can
manually assign this list to other extensions.
Default Pool Dial-Out Code
Restriction for All Extensions
The default setting for the pool dial-out code restriction (Hybrid/PBX mode only)
is restricted. No extension or remote access user with a barrier code has access
to pools until the restriction is removed by the system manager.
Default Outward Restrictions for VMI Ports
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 must be allowed to call out (for example, to send calls to a user’s home
office), the system manager must remove these restrictions.