Your Headset
Now that your headset and desk phone are correctly configured, use this section to
learn about the headset features, how to use the controls and more.
Headset Controls
This table describes volume controls if your headset is worn on the right. The volume
controls are opposite if worn on the left.
1. Volume/Mute button
Increase the Volume
Decrease the volume
Mute/unmute a call
2. Call button
1
Place, answer, end a call
3. Headset LED
IMPORTANT:
periods of time. Doing so can cause hearing loss. Always listen at moderate levels.
Talk Time
With a single full charge (approximately 3 hours), the CS540 will provide up to 6 hours
of talk time. Talk time is reduced when operating in wideband mode or if the headset
is consistently used some distance from the base.
1
2
3
To mute/unmute the headset, press the volume/
mute button in.
2
3
Briefly press the call button.
Flashes white when in use.
For your safety, do not use the headset at high volumes for extended
the volume button up.
the volume button down.
17