17
16
Making/answering/
ending calls
Ascending/descending
tones, 2 tones at limit
3 mid tones = Mute
3 low tones = Unmute
NOTE: Tones repeat every
15 seconds when muted.
Short key press
Short key press
straight in
Rock back
and forth
Mid tone
Low battery
warning
Return headset
to charging cradle 1 tone every 10 seconds
Out of range
warning—when
on active call
Move closer
to base
—
—
2 tones
Incoming call
notification*
*Only works when using optional Handset Lifter.
Press call control
button to answer call
—
3 repetitive tones
Mute
Listening volume
minor adjust

Key Feature Action Tone

Action Light

Fully Charged Solid amber
Charging Flashes amber
Solid green
Power Solid red
Talking
Flashes greenMuted
CS55 CS50
Talking/Muted
(Green)
Charging (Amber)
Power (Red)
Talking/Muted
(Green)
Charging (Amber)
Power (Red)