19
Shift key on Aastra M535 expansion key module
Switch between the 3 views. Press 1 x each to display the next level.
20
LED display on Aastra M535 expansion key module
Indicates which of the 3 levels is activated.
Aastra 5380/Aastra 5380ip
eud-1282/1.3 – R3.0 – 04.2013
Operating and display elements
17