Yealink SIP-T48G

Configuring Basic Features
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1) Select the desired account from the pull-down list of Account.
2) Mark the desired radio box in the DND Status field.
3) (Optional.) Enter the DND on code in the DND On Code field.
4) (Optional.) Enter the DND off code in the DND Off Code field.
3. Click Confirm to accept the change.
To specify the authorized numbers when DND is enabled via web user interface:
1. Click on Features->General Information.
2. Select the desired value from the pull-down list of DND Emergency.
3. Enter the desired value in the DND Authorized Numbers field.