Lexus LS460 - Speaking on the Phone

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5-6. Using the hands-free phone system (for cellular phone)
LS460_EE (OM50D49E)
The following screen is displayed when speaking on the phone.
 To adjust the receiver volume
Select “-” or “+”, turn the “PWR•VOL” knob, or use the volume
switch on the steering wheel.
 To adjust your voice volume that the other party hears from their
speaker
Select “Transmit volume” and select “-” or “+” to adjust the
transmit volume. Select “OK”.
 To prevent the other party from hearing your voice
Select “Mute”.
Speaking on the phone
 “Main Display”  “Side Display”