2 Wideband/Narrowband Audio Switch
The CS540 has wideband audio, which allows speech to sound clearer and more natural. If your desk phone is capable of wideband audio, set the
NOTE: Talk time will be reduced when operating in wideband mode.
Set the switch to black (narrowband) for longer headset battery life or to increase the number of systems that can work in a small area.
3 Auto Answer Switch
Auto answer saves a button press to establish the radio link between headset and base. When auto answer is set to black you must press the headset call control button to answer an incoming call.
When Auto Answer is set to gray you can answer a call just by lifting headset from the base.
NOTE Auto answer/end capability requires the use of an EHS cable or HL10 lifter. Visit plantronics.com/accessories for more information.
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