AASTRA 4223 Professional for MD Evolution User Guide - Manual (Page 148)

149 MD Evolution – Dialog 4223 Professional
Installing Your Extension
Adjusting the Screen Angle
Your extension’s screen is also adjustable, allowing you to choose
the best possible viewing angle.
To adjust the screen angle, simply push or pull the screen as
illustrated below.
Installing Your Extension’s Label
Your extension also comes with a label that identifies each fixed
function key’s use. You may also indicate what functions have
been programmed on your extension’s various line keys (see the
“ Programming Your Extension ” section.)
This label is protected by a plastic cover.
To insert or remove the label, lift the protective cover as illustrated
below.
Note: If you need a new label, contact your system
administrator.