Aastra Telecom SIP 57I - Manual (Page 353)

Operational Features
41-001160-00, Release 2.1, Rev 04 5-143
Configuring Operational Features
Operational IP Phone Features
Aastra Web UI
1 Click on Operation->Softkeys and XML
or
Click on Operation->Programmable Keys
or
Click on Operation->Expansion Module <N>.
Depending on your phone-model, the key configuration screen displays. The 57i Key Screen is
shown as an example
2 Select a hard key to configure.
3 In the "Type" field, select "do not disturb".
Note: You do not need to set the "Value" for DND. DND is applied to the hard key only.
4 Click to save your changes.