Iridium 9555 Handset
Ringer
Volume
4 .20
I
4 Getting Started
The ringer volume may be adjusted via the
Volume and Tones menu located under the
Setup Menu .
•
Increase the ringer volume by pressing
the upper volume control key .
•
Decrease the ringer volume by pressing
the lower volume control key .
•
As you press the keys, you will hear the
new volume level . The bar graph on the
display indicates the volume level . The
higher the graph, the louder the volume .
Upper volume
control
increases
ringer volume
Lower volume
control
decreases
ringer volume
Bar graph
for ringer
volume
Volume
OK
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