Basic Phone Features
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The EXT Display icon will display on the status bar of the touch screen.
Note
To configure the output resolution of external monitor via web user interface:
1. Click on Settings->Video.
2. Select the desired value from the pull-down list of Display.
If there is no external monitor connected, the pull-down list will only display No devices.
If you connect the external monitor, but disable the EXT Display, the external monitor will not
display the content on the phone but a Yealink logo.