Aastra 55I IP PHONE - RELEASE 2.1 User Manual page 66

Key Display Behavior
On the 55i IP Phone, you can configure up to 20 functions on the softkeys. If you
have no softkeys configured on the IP Phone, and you assign softkey functions to
higher number keys in the Aastra Web UI, the key functions automatically appear in
the first available position on the LCD display.
For example, if softkeys 1 through 20 are set to "None", and you set softkey 12 as the
following:
Type: speeddial
Label: LAB
Value: 3456
after saving the settings, the "LAB" label actually appears in position 1 of the LCD .
A softkey function of "none" does not display on the idle screen at all.
The following illustrations show the configuration of Key 12 and how that key
displays on the phone.
Key 12 configured as a speeddial
58 Model 55i IP Phone User Guide