Lucent Technologies MERLIN LEGEND System Manager's Manual page 180

MERLIN LEGEND Communications System Release 5.0
System Manager's Guide 555-650-118
4 Features and Applications
Applications
A 012 or 016 port (Release 4.0 and later) that is programmed as a generic
VMI port or a MERLIN LEGEND MAIL Voice Messaging System port
(including the Remote Maintenance Device port) can transfer an outside call
to an outside number if the default settings are changed in Release 3.1 and
later systems. In this case, a single-line telephone, connected to an
integrated VMI port can complete trunk-to-trunk transfers. In Release 3.1
and later systems, trunk-to-trunk transfer is automatically disallowed for all
extensions, unless it has been enabled (on a per-extension basis) through
system programming.
Calling restrictions (for example, Disallowed Lists, Toll Restriction, Facility
Restriction Levels) should be programmed, as appropriate, to minimize toll
fraud abuse, especially if a single-line telephone is connected to an
integrated VMI port. Refer to the "Calling Restrictions" section in the Feature
Reference for additional information about programming calling restrictions.
Issue 1
June 1997
Page 4-64