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• You will hear a set of rising tones as the
speakerphone adjusts itself to the surrounding
acoustical environment. These tones are
automatic. No user response is required.
To adjust the
speakerphone to the
surrounding room
acoustics
Note: If you do not have a
button, it is not
necessary to activate this
feature.
1 While on-hook, press
• Red light next to goes on steadily
2 Press
• Red light next to goes off
• Red light next to blinks
• You hear a series of tones as the speakerphone
performs an acoustic test of the environment.
The display shows:
When the tones stop, your built-in speakerphone
is ready for use.
Shift
Shift
Shift
Speaker
Shift
Speaker
OPTIMIZING PERFORMANCE
OF THE SPEAKERPHONE.
Select Ring (and Ringer Volume)
To select a personalized
ringing pattern (for those
8405 voice terminals
which have a
button)
Note: For procedures on
selecting a personalized
ringing pattern for those
8405 voice terminals that
have a button, see
the next page.
1 Press
• Red light goes on steadily
2 Press
• Red light next to winks
• Current ringing pattern plays and repeats every
three seconds.
• If your 8405 has a display, it shows the ringing
pattern you are hearing, such as:
3 Continue to press (and then release) (or, if you
are using a display set, you can also press
or ) to cycle through all eight ringing patterns
✔
Shift
Ring
Shift
Hold
Shift
SELECT RING PATTERN: 1
Hold
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