Problem

standby or hibernation, an optional AC power supply is provided to ensure the headset can be continuously charged

My headset does not work with my softphone.

Possible Cause	Solution
Incorrect softphone selected	Ensure you have selected the softphone you
	are using through the software. If the
	softphone you are using does not appear
	on the list, please check
	www.plantronics.com for software updates
Headset has a flat battery	Ensure your battery is fully charged. If you
	are using a laptop that regularly goes into
	standby or hibernation, the AC power
	supply is available to ensure the headset
	can be continuously charged

CS50/CS60-USB not set as the voice device

Use the audio settings on the computer or CS50-USB/CS60-USB is the softphone to ensure that the device used for voice.

PROBLEM

I plugged everything in but the lights won’t come on.

Possible Cause	Solution
Computer not turned on	Check that the computer is turned on and not
	in standby or hibernation mode.
Insufficient power from USB port	If using a USB hub, check that the AC power
	supply is correctly connected and that the hub
	can supply 250mA to charge the headset.
PROBLEM
I cannot hear caller / dial tone.
Possible Cause	Solution
Too far away from base	Ensure you are within range of the base
Listen volume too quiet	Adjust the Listen Volume Control on the
	headset, softphone and PC audio control.
	Ensure the headset speaker is positioned