PLANET VIP-6040PT - Manual (Page 91)

Gigabit Color LCD HD PoE IP Phone (4-Line)
VIP-6040PT
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7.15 DND
When you use the DND feature, the phone is to reject all incoming calls
automatically and you can see the mute icon shown on the top of the LCD on
the idle page.
To enable DND feature via phone interface:
1. Press the DND soft key when the phone is idle, and then shown on the
LCD.
To disable DND feature via phone interface:
1. Press the DND soft key again, and then there is no on the LCD.
7.16 Key as Send
To configure Key as Send via phone interface:
1. Press Menu →Features → Key as Send
2. Press and or press key to select Enable.