AT&T MERLIN LEGEND System Reference Manual page 173

Features
2-124 Direct Station Selector
Table 2-5 Continued
Position Transfer
Type Feature
Call park zone
QCC, cont.
N/A Line/trunk
number, Listed
Directory-
Number,
unassigned
extension
numbers, dial 0
The red LEDs for each DSS button are used to determine whether a user is on a
call (off-hook), has no call active (on-hook), or is using Do Not Disturb. The LED
indication (on) is not different for off-hook and Do Not Disturb; therefore, the
system operator cannot determine whether the user is on a call or has activated
Do Not Disturb. For a calling group extension on a DSS button, the red LED
indicates the status of the queue. For a pool dial-out code on a DSS button, the
red LED indicates trunk available.
Table 2-6 shows the meanings of the red LEDs for DSS buttons while the system
operator position is in the normal operation and message status is not active.
Extension Type Result
The Park feature is activated and
the call is put on hold on the
selected park zone to allow pickup
from any extension in the system.
Ignored, no effect