Aastra Telecom 55i IP Phone - Manual (Page 57)

Model 55i IP Phone User Guide 51
Softkeys and Programmable Keys
2. For softkeys, select from "Key 1" through "Key 20".
or
For programmable keys, select from "Key 1" through "Key 6".
3. In the "Type" field, select "Flash".
4. In the "Label" field, enter a label to display on the phone for the softkey.
5. Click
to save your changes.
6. Click on Operation->Reset.
7. In the "Restart Phone" field click
to restart the IP phone.