Activate or deactivate lights
By default, the indicator lights are
used in all situations. To deactivate
the lights in some situations
(for example, during a call or when
the speakerphone is connected to
a mobile device), press and hold the
answer/end key and the volume down
key for about 5 seconds when the
speakerphone is connected to
a device. The speakerphone beeps, and
the yellow indicator light flashes once.
ENGLISH
To activate the lights, press and hold
the answer/end key and the volume
up key for about 5 seconds. The
speakerphone beeps, and the green
indicator light flashes once.