Toyota PRIUS Owner's Manual page 243

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2. Touch the "Select Telephone" switch
to display "Select Telephone" screen.
You can select the Bluetooth phone
from a maximum of 6 numbers.
"Empty" is displayed when you have not
registered a Bluetooth phone yet.
Bluetooth mark is displayed when you
choose the phone.
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Although you can register up to 6 Blue-
tooth phones in the system, only one
Bluetooth phone can function at a time.
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3. Touch the "OK" switch.
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