Polycom
®
 Communicator User Guide - 7
   In order to use this device, you 
will also need to have one of 
the following installed on your 
computer: Microsoft
®
 
Windows
®
 XP (SP 2), Windows
®
 
Vista, or Windows
®
 7 OS.
   For best acoustic performance, 
always use the device with its back 
cover/stand opened to the locked 
position.
   Ensure that the Polycom 
Communicator is the device being 
used for both microphone and 
speaker.
   For private conversations, stereo 
headphones can be plugged into the 
side of the Polycom
®
 Communicator 
C100S unit.  If you have a set of 
desktop PC speakers you can plug 
them into the 3.5mm headphone 
port on the side of the Polycom 
C100S Speakerphone for stereo 
sound.
   You can use the Windows
®
 Sounds 
and Audio Devices screen to adjust 
the volume of the microphones and 
speaker.
Please note that the Polycom
Communicator automatically becomes
your default Windows Audio Device
(Mic & Speaker) when it is plugged
into your computer. 
If you do not want the Polycom 
Communicator to be your default Windows 
Audio Device you can change your audio 
settings by doing the following: 
Select “Start” > “Settings” > “Control 
Panel” > “Sounds and Audio Devices” > 
“Audio” > then select your embedded sound 
card from the drop-down menu for “Default 
Audio Device”.
Tips