USRobotics USB Internet Speakerphone Guide D'installation Rapide page 26

Note: When you open the Volume Control panel, the controls
affect the selected sound device. To control the speaker-
phone, select it as follows:
1. From the Options menu, select Properties.
2. In the Mixer device list, select the speakerphone:
Windows XP: select C-Media USB Headphone Set.
Windows 2000: select USB Audio Device.
The person on the other end of the call hears loud back-
ground noise.
OR
My microphone sometimes mutes itself during a call.
OR
I hear my own voice through the speakerphone.
OR
The person on the other end of the call says that my voice
is breaking up.
Possible Solution:
Follow the microphone setup instructions in step 6, "Set the
microphone properties." on page 13.
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