Question about GN Netcom GN 9120-28 Wireless Headset

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How do I adjust the talk volume?

People are having a hard time hearing me when I speak. How can I increase the 'talk volume' on the GN 9120-28?

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I can hear callers but they cannot hear me. Mute is not engaged,

Please see the link below for the User's Guide.

• Headset is muted. Long press (3 sec.) the volume down button on headset to unmute the microphone. See page 16.
• Improper positioning of voice tube. Try various other positions.
• Voice tube may be clogged. Remove voice tube and test to see if callers can hear you without it. If they can, then replace the clogged voice tube. See page 18.
• Speaking volume is too low. Increase the speaking volume by
adjusting the speaking volume minor adjust buttons on the base unit as described on page 16. If the volume is still too low, select another speaking volume major adjust setting as described on page 16.
• Incorrect configuration dial setting for your phone. Try other
phone configuration dial settings on the base unit. Ensure the
selected number is in line with the position indicator. See page 14.

Plantronics CS70 User's Guide

Good luck from Headsets Direct!

Jul 18, 2011 | Plantronics CS70 Wireless Headset

1 Answer

Bt350. Can I increase the volume on the input. I have complaints that people do not hear me well. I can hear fine myself

Sorry you cannot increase the input.May be there is more disturbances in the surroundings.Try to speak more louder.Thats it you can do.
Thank you

Aug 31, 2010 | Jabra BT350 Wireless Headset

1 Answer

We are experiencing interference on headsets when

You don't say what kind of interference you are experiencing. If it is humming, adjust the compatibility switch until the sound is clear. If the caller cannot hear your voice, make sure that the mute button is turned off (indicator off). Increase the outgoing volume by adjusting the speak volume. Adjust microphone closer to your mouth. Make sure the telephone handset hook is off the phone. Make sure all cables connections are correct and firmly in place.

Good luck from Headsets Direct!

Aug 12, 2009 | Plantronics (45647-04) for S10, T10, T20...

1 Answer

I have a gn9120 headset that i love. suddenly, callers are complaining that they can't hear me. Is there volume adjustment or is there a defect?

Volume adjustment is made by depressing the two + and - together until beep is heard
once beep is heard press the + button several times until louder bleep is heard this will increase transmission from headset and cure the problem


Jul 15, 2009 | GN Netcom GN 9120 Professional Headset

1 Answer

GN Netcom heatset buzz

I had this problem a few months ago, make sure the small wheel on the side is set on A. (if you look closly at the wheel there are very small and hard to see letters on there.) this should get rid of the buzzing.

Jan 28, 2009 | GN Netcom (9120-48) Wireless Headset

1 Answer

New Phone Causing Echo

It sounds like your microphone volume is too loud. Get someone on a call with you so they can tell you how it sounds as you adjust it. Turn down the mic volume by pressing the + & - buttons on the earpiece together once which puts the earpiece into mic adjust mode. Then decrease the mic volume by pressing the minus button a few times until it sounds right. The earpiece will automatically revert to normal mode within a few seconds.
If this doesn't work it may be that you need to adjust the compatibility setting for the new phone. This is the small black dial on the base station. The most common setting is 'A' but you may need to experiment with other settings for that phone.

Nov 04, 2008 | GN Netcom GN 9120 Professional Headset

1 Answer

GN Netcom wireless headset volume adjustment

Transmit volume adjustment
Adjust the volume of transmitted sound according to personal preference.
To adjust the volume:
1. Make a telephone call and ask the person you are calling to assist
2. Press the +/– buttons on the headset simultaneously for 2 seconds.
A beep will indicate when 2 seconds has passed.
3. Adjust the volume level by pressing the + or – button.
4. When the person you are speaking with fi nds the volume of your
voice appropriate, press the +/– buttons simultaneously for 2
seconds. This setting is now stored in the headset.

A Copy of the manual is avaliable at:

You must have Adobe Reader to view it and the instructions are on page PDF page 3 or manual page 6. Adobe Reader is avaliable for download at:

May 21, 2008 | GN Netcom (9120-48) Wireless Headset

1 Answer

Plantronics GN9120 microphone is too quiet for listener

I've had this same probelm and after much pressing of buttons eventualy fixed it by reading the manual... :s

Last page page of Quick Set-Up Guide under "Transmit volume adjustment":

1.) Make call to another phone user to assist.
2.) Press + and - on the headset at the same time.
3.) Adjust volume by pressing either - and +.
4.) Confirm volume with helper.
5.) Wait for 10secs and the settings will store.

May 08, 2008 | GN Netcom GN 9120 Professional Headset

1 Answer

GN 9120 Headset

Hold down the middle button on your headset for 6 seconds until you hear a series of beeps. Then hit the + sign about 2-3 times and then press the middle button again to disconnect. This should fix the issue. Make sure to call someone to test this as you may have just turned the volume up way to high. If that is the case, then you need to repeat this process using the - button instead of the + button.

Nov 27, 2007 | GN Netcom GN 9120 Professional Headset

1 Answer

Echo when using the headset

If you are having echo problems while not on a call (you are wearing the headset, it is active, but you are not currently on the phone with anyone), there are 3 ways to counteract this: -When you are done with a call, you can click your Multifunction button on your headset (middle one inbetween the volume controls). -Move the microphone away from your mouth when you are not on a call. -A more permanent solution: decrease the sensitivity of your microphone. To do this, click and hold the increase and decrease volume buttons on your headset ( + & - ) for 3 seconds. Let the buttons up after 3 seconds and push the lower volume button 2 or 3 times. Wait 6 more seconds and it will beep at you. After you have done this, make a call to someone in the office to be sure the sensitivity has not been lowered so much that others can?t hear you.

Jan 08, 2007 | GN Netcom GN 9120 Professional Headset

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