Audio Tone
Ascending tone
Two descending
tones
Ring tone
Short tone when
pressing Volume button
High/low tones
repeated every 60 sec.
No audio indications;
deteriorating quality
Two ascending tones
AUDIO TONES
Headset Status
Powering on
Powering off
Incoming call
Volume level (high,
medium, or low)
Low battery
Out of range
Connected to phone