English – GN9120/GN9125 reference guide
This reference guide provides you with additional information on setting up, using and maintaining your
GN9120/GN9125. Note: The illustrations in the reference guide refer to the Mono version (one earpiece),
but also apply to the Duo version (two earpieces) and the GN9125.
Contents
1. Product Information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2
Verify the assembly of your GN9120/GN9125
Battery charging and use
2. Features and customisation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3
Multifunction button
Functionality of the + and – buttons
Positioning of microphone
3. Remote handset lifting functionality . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
Answering and making telephone calls with GN1000 or Electronic Hook Switch
GN9120/GN9125 with Electronic Hook Switch (EHS)
4. Audio and visual indicators . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
5. Troubleshooting. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
6. Reconfiguration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
Replacing the battery
Memory reset
Registering a new master headset
7. Cleaning, safety and maintenance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
1. Product information
Congratulations on purchasing the GN9120/GN9125. The GN9120/GN9125 is a wireless headset solution, made
up of a cordless headset and a base unit that is connected to your desk telephone. The GN9120/GN9125 gives
you full mobility, hands-free convenience and superior sound quality for your telephone conversations.
Verify the assembly of your GN9120/GN9125
When removing the headset from the base unit, the green link-up indicator on the
front of the base unit will light and the on-line indicator on the headset will flash.
If the green link-up indicator does not light, check the wiring connections on the
base unit and ensure that the power adapter is connected. If the on-line indicator
on the headset does not flash continuously, replace the headset in the base unit
and remove it again.
Battery charging and use
When not in use, place the headset in the base unit to charge the battery. Ensure the link-up indicator is not
lit. If the link-up indicator is lit after placing the headset, remove the headset from the base unit and place
it in the base again. If battery charge is too low, a beep will be heard in the headset every 20 seconds.
Note: The battery charging indicator on the base unit will flash continuously during charging and be lit
when the battery is fully charged.
2. Features and customisation
Multifunction button
The multifunction button enables several functions, depending on how long the
button is pressed for.
Functions Press momentarily Press for 5 sec. Press for 6 sec.
Answer/make call*
√
End call*
√
Conference mode
√
Tone control adjustment
√
Low power mode on
(European versions only)
√
(MFB and “–” simultaneously)
Low power mode off
(European versions only)
√
(MFB and “+” simultaneously)
* Only with GN1000 or EHS mode
Functionality of the + and – buttons
The + and – buttons enable several functions, depending on how long the button
is pressed for.
Functions Press momentarily Press twice within 1 sec.
Volume +
√
Volume –
√
Mute / un-mute
√
Press “–” twice within 1 sec.
Transmit volume
adjustment
√
“+”/”–” simultaneously to enter
mode, then “+” or – for adjusting
Positioning of microphone
Adjust the boom arm of your headset so that the microphone is positioned
in the direction of your mouth, as close as possible to your mouth.
Note: The boom arm cannot be rotated a full 360 degrees. Do not force
the boom arm when it cannot be rotated any further.
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