Iwatsu ICON Series IX-5910 Owner's Manual page 328

To display all extension modes:
Press the F1 DISP key after you have entered an extension
number and the display will show:
***Forward Forced Release***
201 202 203
DND NONE NONE
UP DOWN <_
F1 F2 F3
The first line of numbers represents the extension numbers
The second line represents the current extension mode
Pressing the F1 UP key displays the next 10 extension
numbers
Pressing the F2 DOWN key displays the previous 10
extension numbers
Pressing the F3 <_ key moves the (_) cursor to the left.
Pressing the F4 _> key moves the (_) cursor to the right
Pressing the F5 DISP key displays the status for the group
above the (_) cursor
Press the END key
ATTENDANT CONSOLE USER GUIDE - 308
204 205 206 207
NONE NONE FWD FWD
_> DISP
F4 F5
208 209 210
FWD DND DND