Plantronics S12 User Manual
Page 6
UK
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12
UK
TROUBLESHOOTING
PROBLEM
I cannot hear a dial tone.
Make sure all cable connections are correct and firmly in place.
Pay special attention that the handset and short cords are
properly connected.
Make sure you have pressed the Headset/Handset Button and the
Headset Indicator is flashing.
Make sure the telephone handset is off the hook.
Adjust the Listen Volume Control.
Adjust the Compatibility Slide Switch.
Ensure that the headset is centered on your ear.
PROBLEM
Caller cannot hear my voice.
Make sure the Mute Button is turned off and the Mute Indicator
is not illuminated.
Adjust the Transmit Volume Control Switch.
Increase the outgoing volume by adjusting the Transmit Volume
Control.
Adjust your headset so that the microphone is closer to your mouth.
PROBLEM
I hear a hum in the headset.
Adjust the Compatibility Slide Switch until the sound is clear.
Trying other settings will not harm the Amplifier or your telephone.
UK
11
TO USE THE MUTE FUNCTION
Depress the Mute Button (
17
) so that the Mute Indicator (
15
) is flashing. You will be
able to hear your caller but they can’t hear you.
Release the Mute Button (
17
) to deactivate the mute function. The Mute Indicator
(
15
) is not illuminated.