Yealink SIP-T48U – Do Not Disturb

You can use Do Not Disturb to reject incoming calls automatically on the phone. When activated callers will receive a busy message. All calls you receive while DND is enabled are logged to your missed calls list.

If you need to receive calls from certain numbers while Do Not Disturb is enabled you have the option of configuring Authorized Numbers.

DND can be activated as a whole for the phone. It is called Phone Mode and is the default option. Or it can be activated for each account separately. The second option is called Custom Mode.

DND Mode Configuration

To configure the DND mode via web user interface: 

• Click on Features>Forward&DND.
  
  
• In the DND block, mark the desired radio box in the Mode field.
  
  
  
  
• Click Confirm to accept the change.

When DND and busy forward are enabled, calls will be sent to the configured destination number in phone mode or to the number configured to a specific account in custom mode.

DND Activation

To activate DND for the in phone mode:

• Tap   when the phone is idle.
  
  
• The   icon on the status bar indicates that DND is enabled.
  
  
• Incoming calls will be rejected automatically and "n New Missed Call(s)" ("n" indicates the number of the missed calls) will appear on the touch screen.
  
  

To activate DND for a specific account in custom mode:

• Tap   when the phone is idle.
  
  
• The touch screen displays a list of accounts registered on the phone.
  
  
  
  
• Tap the desired account.
  
  
• Tap the On radio box of the DND Enable field.
  
  
  
  
•  Tap the Save soft key to accept the change.
  
  
  • If you activate DND for the default account, the associated line icon will change to   and will appear on the status bar.
    
    
  • If you activate DND for the non-default account, only the associated line icon will change to   .
    
    
• Incoming calls on the specific line will be rejected automatically, and the touch screen will prompt “n New Missed Call(s)” (“n” indicates the number of missed calls. e.g., 1 New Missed Call(s)).
  
  

To activate DND for all accounts in custom mode:

• Tap   when the phone is idle.
  
  
• The touch screen displays a list of accounts registered on the phone.
  
  
  
  
• Tap the All On soft key to activate DND for all accounts.
  
  
• Tap    to return to the idle screen.
  
  
• The associated line icon will change to  .
  
  
• The    icon will appear on the status bar.
  
  
• Incoming calls will be rejected automatically, and the touch screen will prompt “n New Missed Call(s)” (“n” indicates the number of the missed calls. e.g., 1 New Missed Call(s)).
  
  

Authorized Numbers Configuration

You can receive incoming calls from authorized numbers when DND is activated.

To configure the DND authorized numbers via web user interface:

• Click on Features>Forward&DND.
  
  
• Select Enabled from the pull-down list of DND Emergency.
  
  
• Enter the numbers in the DND Authorized Numbers field.
  
  For multiple numbers, enter a comma between every two numbers.
  
  
• Click Confirm to accept the change.

When DND is activated on the phone, the phone can still receive incoming calls from the numbers specified in the DND Authorized Numbers field.