Polycom 1500/1800/2000/4000 manual Define the following fields

Defining AVC-Based Conference Profiles

25 Define the following fields:

New AVC CP Profile - Message Overlay Parameters

Field	Description
Enable	This option is disabled by default. Select this check box to enable Message Overlay
	or clear it to disable it.
Content	Enter the message text. The message text can be up to 50 Chinese characters.
Font Size	Click the arrows to adjust the font size (points) for the display of the message text.
	Font size range: 9 - 32 points, default: 24 points
	Note: In some languages, for example Russian, when a large font size is selected,
	both rolling and static messages may be truncated if the message length exceeds
	the resolution width.
Color	From the drop-down menu select the color and background of the displayed text.
	The choices are:

		Default: White text on red background.
	Vertical Position	Move the slider to the right to move the vertical position of the displayed text
		downward within the Video Layout.
		Move the slider to the left to move the vertical position of the displayed text upward
		within the Video Layout.
		Default: Top Left (10)
	Background	Move the slider to the left to decrease the transparency of the background of the
	Transparency	message text. 0 = No transparency (solid background color).
		Move the slider to the right to increase the transparency of the background of the
		message text. 100 = Full transparency (no background color).
		Default: 50
	Display Repetition	Click the arrows to increase or decrease the number of times that the text message
		display is to be repeated.
		Default: 3
	Display Speed	Select whether the text message display is static or moving across the screen, the
		speed in which the text message moves: Static, Slow, Fast
		Default: Slow
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