AASTRA 4223 Professional for MD Evolution User Guide - Manual (Page 153)

Your Extension’s Accessories
MD Evolution – Dialog 4223 Professional 154
Depending on the number of satellites connected to your extension,
it is suggested that you position the support feet according to the
diagrams illustrated below.
As you did with your extension, to install the support feet, push
them into the underside of your extension to the desired angle,
then push in the tab to secure their position.
If you wish to remove the support feet, pull on the tab to release
them before removing the feet from the extension.
Inserting the Labels for the Add-on
Key Panels
Each satellite is designed to have a label.
It is designed so you may indicate what functions have been
programmed on the various satellite repertory keys (see the
“ Programming Your Extension ” section.)
This label is protected by a plastic cover.