Getting started
2
Quick reference guide - headset
VOL+/VOL-
Slide the volume switch
to the right or left to
adjust the headset
ringer volume while
in idle mode, or the
listening volume while
on a call (page 26).
Earpiece
Microphone
The microphone
incorporates noise
canceling technology
for clearer calls.
FLASH
Press to answer an
incoming call when you
receive a call waiting alert
during a call (page 25).
Battery with cover
attached
Remove to replace the
battery (page 6).
MUTE/VOICE
Press to mute the microphone
during a call (page 26).
Press to mute the ringer in
the earpiece when there is an
incoming call (page 24).
Press to initiate the voice
command feature when in idle
mode. (It is only available when
TL7900 is registered to a TL7910/
TL7912 headset base.) (page 24)