Uniden TRU 8885 - Manual (Page 37)

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Adjusting the Ringer, and Earpiece and Speaker
Volume
Ringer volume
In standby mode, press the volume up key or volume
down key on the handset or base to select one of three
ringer volume (Off, Low, or High).
Earpiece and Speaker Volume
You can select from among of six volume levels on the
handset, and ten levels on the base. Pressing the
volume up key or volume down key on the handset or
base during a call will change the earpiece or speaker
volume. This setting will remain in effect after the
telephone call has ended.
If you press the volume up key when the earpiece is at
the maximum volume level, an error tone sounds.
The error tone also sounds if you press the volume down key at the lowest volume.
Do Not Disturb (DND)
The do not disturb feature (DND) allows you to mute the ringer, the base, and any
registered handsets at the same time. The phone must be in standby mode. Press
and hold do not disturb on the base. You will hear a confirmation tone, and the
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