Plantronics CS540 User Manual

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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 Wideband-Narrowband audio switch to
yellow for wideband.
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.

Plantronics CS540 Specifications

General

Wireless Technology	DECT 6.0
Talk Time	Up to 7 hours
Headset Weight	21 grams
Audio Performance	Wideband audio
Noise-Canceling	Yes
Microphone	Noise-canceling microphone
DECT Security Certification	Yes
Compatibility	Desk phones
Earpiece Type	Monaural
Warranty	1 year
Range	Up to 350 ft (107 m)
Battery Type	Lithium-ion polymer
Wearing Style	Over-the-ear
Charging Time	3 hours