Polycom 6000 - Manual (Page 55)

Content and Captions
5 - 5
Setting Description
Enable Rolling Caption Sets whether to display a moving caption
to all participants.
Color Sets the display color of caption.
Rolling Speed Sets the scrolling speed of the rolling
caption.
A scrolling speed of 1 is the slowest
speed, and 3 is the fastest.
Caption Position Sets the display position of marquee in the
picture.
Rolling Caption Text Text to display in the rolling caption. The
text can contain letters, numbers,
symbols, and Chinese characters.