Last number redialing
⚫ Press the “Call’’ button twice and you can hear ‘Redialing’ voice notification in speaker.
Mute On/Off
⚫ Press and release the mute button and ‘Mute On’ is heard in speaker.
⚫ Press again to resume the call and ‘Mute Off’ voice notification can be heard in speaker.
Volume adjustment
⚫ Press volume up/volume down to adjust the
listening volume. There is a small notch on
each volume button that makes them easy to
find. The headset listening volume can also
be adjusted on the phone.
Note that high listening volume settings may
cause echo or other noise on the line, for one
or both parties on the line. Try to lower the
listening volume if this is the case.
Important! – High listening volume settings
may be harmful to your hearing.
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