Lexus GS 450h 2008 Owner's Manual page 325

Speaking on the phone
The following screen is displayed when speaking on the phone.
■ To adjust the received call volume
Press the
ing switches.
■
To prevent the other party from hearing your voice
Touch .
■
Inputting a key
When using phone services such as an answering service or a bank,
you can store phone numbers and code numbers in the phone book.
3-4. Using the hands-free system (for cellular phone)
or . You can also adjust the volume using the steer-
3
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