AT&T MERLIN LEGEND Release 3.1 System Programming Manual page 78

Product Enhancements
Single-Line Telephone Enhancements
Disable Transfer. Through centralized telephone programming, the
system manager can disable the ability to transfer calls by removing all
but one SA or ICOM button from the telephone.
No Transfer Return. When a handset bounce in its cradle, the MERLIN
LEGEND system interprets that as a switchhook flash and attempts to
transfer a call. When the transfer attempt period expires, the user's
telephone rings. Release 4.0 eliminates this unintended ringing by
disconnecting the call in situations where a switchhook flash is followed
by an on-hook state when dial tone is present.
Forward Disconnect. All ports on 012 and 016 modules now send
forward disconnect to all devices connected to them when forward
disconnect is received from the CO. This enhancement prevents the
trunk/line form being kept active when one end disconnects from the call.
If an answering machine is connected to the port, it will not record silence,
or busy tones, or other useless messages. This is a non-administrable
operation.
Security Features
7-digit password for SPM
Release 4.0 has increased system security by requiring a 7-digit password when
using SPM to perform remote administration or when performing the Trunk Test
procedure. This password is to be used in addition to the Remote Access barrier
codes.
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Programming Basics