AASTRA 4223 Professional for MD Evolution User Guide - Manual (Page 8)

Introduction to Your Extension
MD Evolution – Dialog 4223 Professional
8
Introduction to Your Extension
Dialog 4223 Extension Features
1 Display
Your extension features a screen with three 40-character lines. See
also the “ Display Information ” section.
2 Dynamic Function Keys
Dynamic functions are services that are accessible depending on
the status of your calls. The corresponding text labels are displayed
on the last line of the extension’s display. They are selected by
pressing the corresponding dynamic function key.
See also the “
Display Information ” section.