Polycom IP331 Owner's Manual page 27

No Part Name
1 Message Waiting
Indicator
2 Line Icons
3 Soft Keys
Description of function
This will alert you to voice and text (instant)
messages.
Use these keys to activate up to lines that can be
assigned to your phone. The associated icons
represent:
-Registered line
-Registered shared line
-Unregistered line
-Voicemail
-Speed-Dial
-
Ringing
-Call in
-Call
Forwar
d
The screen will display labels for these keys, to
identify their context-sensitive functions
27
progress/Conference