Black Box 16 port User Manual page 189

If you specify all lines, the display will look similar to this:
Note that the user shown in the right-hand column is the 'current user' i.e. the user
currently logged in on that line. 'Nouser' means there is not a user currently logged in.'In
use' means the line is in use but line security is off so no the user can be identified
The security status for an individual line can be determined from the show line display.
"Security=on" indicates that security is enabled for the particular line and
"Security=off" indicates security is disabled for the line.
Syntax
s h o w l i n e l i n e _ n u m b e r
Where line_number is :
.
n
*
Menu Line Configuration - Line Settings
equivalent
Black Box Console Server user guide
the current line.
a specific line number.
all lines
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