Question about Plantronics DSP-400 Headset

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Mute Button Stuck, red light won't go out when pressed.

The mute button always comes on when I start up my computer. So I click it off, no problem. But now, it seems to stay on. I suspect I might have on this last occasion pressed too hard. Of course I'm looking for a fix on this?

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Posted on Jan 02, 2017

Peter Denton
  • 16 Answers

SOURCE: No speaking ability

The mute button on these is the little black button on top of the earpiece. It will only be on if you turn it on during a call. If you turn the headset off, the mute button goes off as well.
Check the compaibility 'wheel' on the side of the base station. The most common setting is 1 but some phones use 2,3 & 4. Just try it on each setting until it works. Other than that, check the microphone volume adjust setting underneath the base (ABCD switch) and see if changing that makes a difference. Of course there is always a small chance that the microphone is dead.

Posted on Nov 05, 2008

  • 1 Answer

SOURCE: My 925 is stuck in

I need a bluetooth headset with 30' range and a simple mute button... no "hold for 3 seconds" or "combo" keystrokes.

Posted on Jan 08, 2011

  • 126 Answers

SOURCE: My Plantronics Voyager 520 seems

Try deleting the headset out of your phone and then re-pair it back up and see if that corrects the problem.
How to Pair the Plantronics 520 Headset
Good Luck from Headsets Direct!

Posted on Jun 28, 2011

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    Nov 23, 2007 | Televison & Video

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