8 optiPoint 500 Display Phones
Volume Keys
Use the Volume Up and Volume Down keys to adjust
the voice volume of your telephone. While on a call, press
to raise the volume of the voice you are hearing, or press
to lower it. Press either key repeatedly until you reach the
desired voice level. Holding down either key changes the
volume one step only.
When you hang up or switch to another call, the voice volume
returns to the default level. To save the new setting before
hanging up, press the and
keys together before
hanging up.
Rings and Tones
The sounds your phone makes are defined as “rings” and
“tones”.
• Rings occur on a line that you are not using to indicate that
you have an incoming call.
• Tones occur while you are using your phone to provide
information about calls and features.
Table 2 explains the meanings of the various rings.
Table 2. Rings
and Their Meaning
Ring Meaning
Single (repeated) Internal or emergency call
Double (repeated) External call
Triple (repeated) Callback
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