5. Troubleshooting
I do not hear a dial tone.
• Check that all the cords and plugs are connected correctly.
• Check that the power adapter is plugged in and has power.
• Check that the on-line indicator is lit. If it is not, place the headset in the base unit and take it out again.
• Check that the battery is charged. If the battery is fully charged, the battery charging indicator on the
base unit will light when the headset is placed correctly in the base unit.
The person I am talking to has difficulties hearing me.
• Check that the mute function is off.
• Check the position of the boom arm and make sure that the microphone is placed as close as possible
to your mouth.
• Readjust the microphone volume.
• You may be out of range of the headset's base unit. Move closer to the base unit.
My battery charging light keeps flashing and will not go solid.
Check the battery is correctly fitted inside the headset, and/or the headset is placed correctly in the
base.
I have set up my GN9120/GN9125 correctly, but I am getting a buzzing sound on my headset.
Your telephone may not be fully immune to the radio transmission between your headset and base. To
overcome this problem, move the base at least 30 cm/12" away from the phone. If you have a European
version, you can instead choose to set the headset to Low Power mode.
The person on the other end of the line says he/she cannot hear me.
Ensure that the Telephone Termination Switch is in the correct position and that you have adjusted the
Transmit Power. Please refer to the relevant section in the reference guide.
When I press the MFB the GN1000 lifts but the call is not connected.
When using your GN9120/GN9125 with a GN1000, make sure that the base is connected to the telephone's
handset port and not the headset port. Please refer to the illustrations in the GN1000 Quick Guide.
My headset echoes.
Make sure your telephone's volume control is set to a mid position or lower. If necessary, adjust your
microphone volume on the headset to a lower setting
I have a GN9120/GN9125, the version with built-in Electronic Hook Switch, but it doesn't work
with my telephone
Please make sure that the GN9120/GN9125 is compatible with your telephone system, and set the
GN9120/GN9125 in the correct mode. For standard telephones and for use with GN1000, please make
sure to put the GN9120/GN9125 in RHL mode.
My headset was working but now it has stopped, no indicators are lit.
Your headset may need pairing to the base. Refer to page 7 "Registering a new master headset" in this
reference guide.
Please visit www.jabra.com for further information and frequently asked questions.
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6. Reconfiguration
Replacing the battery
The battery supplied with your GN headset will function for many years. When it needs to be replaced,
please proceed as follows:
1. Remove the earhook/headband.
2. Unscrew the small plate, that holds the battery in place, and remove battery.
3. Insert a new battery into the battery compartment.
Note
: Ensure that the battery is correctly fitted into the headset and the plus pole on the battery is
pointing to the + in the headset battery compartment.
. Screw the plate back on. Fit the earhook/headband back on.
Memory reset
When the battery is removed or the power adapter is unplugged (for at least a few seconds), all
customised headset settings are returned to factory-set default settings.
Registering a new master headset
A new master headset may be registered to the product in case of loss or damage to the original headset.
To register a new master headset, complete the following:
1. Unplug the power adapter for a couple of seconds.
2. Place the new master headset into the base unit.
3. Plug the power adapter back to the power socket.
. All lights flash for app. seconds. After this only the battery indicator will be lit.
5. The new headset is now ready for use.
7. Cleaning, safety and maintenance
Clean the headset, including the headset boom and ear hook piece, by wiping with a slightly damp cloth
as required. Dampen the cloth with only water and a little washing-up liquid if needed.
Avoid getting moisture or liquid into any button sockets or other openings. The base and cords
may be dry-dusted as required.
The ear cushion and ear plate may be cleaned or replaced. When cleaning, use water only and a little
washing-up liquid if required.
• To clean or replace the ear plate, first remove the ear plate from the headset receiver.
• To clean or replace the headset's ear cushion, gently peel it off the ear plate.
• Do not immerse the GN9120/GN9125 in water.
• For your convenience, replace ear cushion once a year.
The plastic bags the GN9120/GN9125 and its parts are wrapped in are not toys for children. The bags
themselves or the many small parts they contain may cause choking if ingested.
The product may only be opened for replacing the battery. For any other reason, only an authorised dealer
or service centre may open the product. If any parts of your GN9120/GN9125 require replacement for
any reason, including normal wear and tear or breakage, contact your dealer. Dispose of the product and
battery according to local standards and regulations. Please keep this reference guide for future use.
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