Yealink SIP-T29G User Manual page 143

You can enable/disable DND for the phone system, or you can customize DND for each or all
accounts. Two DND modes:
Phone (default): DND is effective for the phone system.

Custom: DND can be configured for each or all accounts.

You can receive incoming calls from authorized numbers when DND is enabled.
To configure the DND mode via web user interface:
Click on Features->Forward&DND.
1.
In the DND block, mark the desired radio box in the Mode field.
2.
Click Confirm to accept the change.
3.
Note
DND mode is configurable via web user interface only.
To enable DND in phone mode:
Press the DND soft key when the phone is idle.
1.
Basic Call Features
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