Question about Plantronics CS55/HL10 Wireless Office Headset System with Lifter 69702-01 Headset

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Headset microphone sound breaks up

The earpiece sound works great but the headset microphone sound tends to break up and become intermittent after anywhere from 2 to 15 minutes into a call. I have replaced the rechargeable battery but that did not fix the microphone break up. Others in my office have experienced the same problem. We have had our CS55 headsets for about a year.

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Posted on Jan 02, 2017

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SOURCE: Plantronics CS55 headset.

yes change the battery sir

also can be due to shorting

Posted on Jun 19, 2008

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  • 32 Answers

SOURCE: I have plantronic headset model CS55 the green light is blinking

Either the battery is low, or the unit is switched on.  If you're looking at the base unit of the CS55, on the right hand side there is a switch that either points to I or II.  If it's on II, your headset will be activated the second it is removed from the base.  If it's on I, it won't turn on, thus it won't turn the light on.  Check to make sure that dial is on I instead of II, and when you pick it up you shouldn't have that problem anymore.
If it's a problem with low battery you have to make sure that when you place the headset on the charging cradle that it's securely seated in there.  Also make sure that you clean the charging contacts (the brass-coloured contacts on the headset and on the base) about once a month with rubbing alcohol.

Posted on Apr 28, 2009

  • 32 Answers

SOURCE: phone doesn't ring in earpiece

Only if you have an HL-10 lifter installed... you will then be able to hear three short beeps in your ear to indicate the phone is ringing.

Posted on Apr 28, 2009

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SOURCE: PL-CS55 headset lifts receiver but only get buzzing sound in

Try a system reset:
1. Lift the headset off of the charging cradle (the base).  Make sure the headset is turned off.  The green light on the base won't be on if the headset is turned off. 2. Hold down the call answer button on the headset at the same time as mute button.  The mute button is found on the little black wheel on the top of the headset.  Use the tip of your finger to push it straight in. 3. Hold both buttons until you see a green light on the headset flash.  It will be right below your thumb.  Hold both buttons until the green light flashes for a series of 2 flashes.  Then let go of both buttons. 4. Put the headset back on the charging cradle and wait 30 seconds.  Lift it back off and try again. 5. If this doesn't work repeat the process once more or try a resubscription.
Resubscription procedure:
1. Put the headset back onto the charging cradle.  Make sure the red light on the base is on and the yellow light is flashing. 2. On the back of the base there are two buttons for the microphone adjustment that can be pressed down.  Press both of those down until the red light and yellow light on the front of the base start flashing. 3. While the headset is still on the charging cradle press and hold the mute button until the red light on the base goes solid, and the yellow light stays flashing. 4. Unplug the power to the base and then plug it back in. 5. Wait 20 seconds and try.

Posted on May 22, 2009

  • 1 Answer

SOURCE: I need a manual for a CS55 Wireless offcie headset system

Try http://the-manuals.com/cs55-wireless-headset-manual/

Posted on Jan 15, 2010

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