Plantronics Conference Phone P420 User Manual

TM  
P420 USB Speakerphone  
User Guide  
 
Contents  
1 Package contents and features...................................4  
1.1 P420 USB speakerphone ........................................ 4  
1.2 P420 USB speakerphone features .......................... 4  
2 Set-up..........................................................................5  
2.1 Connecting USB speakerphone to PC.................... 5  
2.2 External speakers/headphones connection ............ 5  
3 Using your P420 USB speakerphone..........................6  
Volume up, volume down, mute .................................... 6  
Plantronics P420 USB Speakerphone  
 
1 Package contents and features  
1.1 P420 USB speakerphone  
USB cable  
(mini B to A)  
Speakerphone  
1.2 P420 USB features  
Mute key  
Volume up  
Volume down  
3.5 mm stereo jack  
(for external speakers  
or headphones)  
USB port  
Plantronics P420 USB Speakerphone  
4
 
2 Setup  
2.1 Connecting USB speakerphone to PC  
NOTE When the P420 is installed, it becomes the default audio  
device in your computer. You can set preferences manually in  
the Windows® operating system through the Sounds and Audio  
Devices option in the Control Panel.  
1 Connect the USB cable to the USB port on the back of  
the speakerphone.  
2 Connect the other end of the USB cable to the USB port  
on your computer. A blue light will illuminate through the  
buttons on the top of the unit indicating the speakerphone is  
powered on and operating.  
2.2 External speakers/headphones  
Connection  
The P420 is equipped with a 3.5 mm stereo headphones/  
external speaker connector. Connecting your computers  
loudspeakers (or headphones) to the P420 will disable the P420  
speakerphones internal speaker. Your computers audio (music,  
VoIP communication or any other) will be passed through to  
the external speakers, maintaining the same sound quality your  
computer can deliver. While the internal speaker is disabled  
when using this connection, the P420 speakerphones internal  
microphone is still functional.  
Plantronics P420 USB Speakerphone  
5
 
3 Using your P420 USB speakerphone  
Volume up, volume down and mute  
1 Press the down arrow (left button) to decrease the  
speaker volume.  
2 Press the up arrow (right button) to increase the speaker  
volume.  
NOTE A prolonged press of the volume buttons will increase or  
decrease the volume several levels until you stop pressing the  
button. The P420 will beep when a volume up button or volume  
down button is pressed and a series of beeps when a prolonged  
press is performed. Each beep signals one level of volume  
increase or decrease.  
3 Press the microphone icon (middle button) to mute  
the microphone. A blue light will flash indicating that the  
microphone is muted.  
4 Press this button again to unmute. The blue light will  
become solid indicating the microphone is unmuted.  
Plantronics P420 USB Speakerphone  
6
 
Plantronics, Inc.  
345 Encinal Street  
Santa Cruz, CA 95060  
United States  
© 2009 Plantronics, Inc. All rights reserved. Plantronics, the logo design, P420 and Sound Innovation are trademarks or  
registered trademarks of Plantronics, Inc.  
83388-01 (12.09)  
 

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