AT&T Merlin Legend MLX-20L Operation Manual page 42

Line 4 shows that you are in the Inspect mode.
Lines 5 through 7 show the names of inside participants
and trunk names for outside participants. The name of the
last person added to the conference is flagged with an
asterisk. Pressing the Drop button drops this person from
the conference.
To view fixed feature button information, press Inspct, then
press a feature button.
If you inspect the Start , Headset/Handset Mute ,
Send/Remove Message , Position Busy , Release , Headset
Status , Night Service , Cancel , Join , Headset Auto Ans , or
Forced Release fixed feature buttons, the feature name
appears on the display.
If you inspect either the Source or Destination button when a
call is on hold on the button, the feature name and calling
information about the held call appears (for example, a co-
worker's name or the trunk name and trunk number). If no call
is on hold on the Source or Destination button, only the
feature name appears on the display screen.
If you inspect the Alarm fixed feature button, the display
shows the number of alarms in your system.
If you inspect the Pool Status button, the number of trunks in
each pool and the number of trunks in use appears. For
example, P70 3 of 9 busy, means that 3 out of the 9
trunks in pool 70 are busy.
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