Polycom IP331 Owner's Manual page 28

4 Line Indicators
5 Line Keys
and
6 Hold
7 Headset
8 Speakerphone
9 Hands-free
Microphone
-
10 Volume Keys
11 Microphone Mute
12 Dial Pad
13 Feature Keys
The LED's indicate the following:
- Solid green-An active call is in progress. -
Fast flashing green-There is an Incoming
(ringing) call.
-Flashing red-The call is on hold.
Activate up to two lines that can be assigned to your
phone.
Holds an active call or resumes a held call.
Allows you to place and receive calls through an
optionally connected headset.
Allows for hands-free communication during calls.
Picks up audio during hands-free calls. Place your phone on
a hard, flat surface for best results.
Adjusts the volume of the handset, headset, speaker,
and ringer.
Mutes local audio during calls.
Provides the 10 digits, alphabetic characters, and special
characters available in context-sensitive applications.
Access important features using these keys.
Dials phone numbers or allows you to view the placed
call list.
Accesses local (your phone) and call server features
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