VIVI Grandstream GXP1600 Series, Руководство пользователя

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Multiple Incoming Calls
If you are already on a call and another call comes through,
then your phone will play a beeping tone to inform you that
you have a call waiting.
Press the flashing line key to switch to and answer the new
call. The original call you were on will now be placed on
hold.
You can press the first line key to swap back to the original
call.
Putting the phone on DND mode
To enable DND (do not disturb) mode, follow these steps;
Press the menu/OK button highlighted in red and then using
the arrow keys, go to Preference and select “Do Not Disturb”.
Press the OK button to either enable or disable DND mode.
If the DND feature is enabled then you will see this icon on
your screen and any calls that come to you won’t ring, and
instead be sent to your voicemail or other extensions in the call
group.
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