Aastra Telecom SISIP 57I CT - Manual (Page 190)

Operational Features
5-62 41-001160-00, Rev 01 Release 2.0
IP Phone Administrator Guide
Operational IP Phone Features
5 On the 55i:
Click on Operation->Softkeys and XML or on Operation->Programmable Keys.
Note: You can configure up to 20 softkeys and up to 6 programmable keys on the 55i.
Aastra Web UI
Softkeys and XML
Programmable Keys