Toyota 2009 Camry Owner's Manual page 259

3-3. Using the hands-free phone system (for cellular phone)
■
Steering wheel
Type A
236
Volume
The voice guidance volume
cannot be adjusted by using
this button.
Hands-free phone system
off/ends a call/refuses a call
(on-hook switch)
Hands-free phone system
on/starts a call (off-hook
switch)
Press: Voice command sys-
tem on
Press and hold: Voice com-
mand system off
(talk switch)