Polycom VVXTM 1500 - Manual (Page 31)

Getting Started with Your Phone
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Call on hold (private line)
Call on hold (shared line)
Call without Polycom HD Voice (private line)
Call (shared line)
Conference call
Conference call (secure)
Do Not Disturb enabled
Forward (Always)
Headphones attached
Line (registered, private)
Line (registered, shared)
Line (unregistered)
Message indicators
Icon Description