Yealink SIP-T46G - Manual (Page 106)

User Guide for the SIP-T46G IP Phone
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The LCD screen displays a list of accounts on the phone.
2. Press or to select the desired account.
3. Press or soft key to select On to activate DND.
4. Press the Save soft key to accept the change.
The icon appears on the idle screen, and the associated line icon changes
to .
Incoming calls on the specific line will be rejected automatically, and the LCD
screen will prompt "n New Missed Call(s)" ("n" indicates the number of the missed
calls).
To activate DND in custom mode for all accounts:
1. Press the DND soft key when the phone is idle.
The LCD screen displays a list of accounts registered on the phone.
2. Press the All On soft key to activate DND for all accounts.