Mercedes-Benz 2009 C-Class Operator's Manual page 194

Controls in detail
Audio system
the caller must also be saved in the telephone
book.
Functional restrictions
You will not be able to use the mobile phone,
or you may have to wait a while, in the
following situations:
If the mobile phone is switched off.
R
If the mobile phone is not connected via the
R
®
Bluetooth interface to the audio system.
The mobile phone must not be locked.
R
If the mobile phone has not yet acquired a
R
network signal.
The mobile phone automatically tries to log
into a network. If no network is available,
you will also not be able to make a "911"
emergency call. If you attempt to make an
outgoing call, the No Service message will
appear for a short while.
If you switch off the audio system in the
R
middle of a call, e. g. by switching off the
ignition, that call will be cut off. You can
prevent this from happening as follows:
Switch the mobile phone to "private
-
mode" before switching the audio
system off (see mobile phone operating
instructions).
192
Activating the mobile phone
Prerequisites for the mobile phone
For making calls using the audio system via
®
the Bluetooth interface, you will need a
®
Bluetooth enabled mobile phone.
Before attempting to make or receive calls via
®
the Bluetooth interface, check your mobile
phone's hands-free profile. It must support
version 1.0 or higher (see mobile phone
operating instructions).
i
Not all mobile phones on the market are
suitable. Further information on suitable
mobile phones and on connecting
Bluetooth ® enabled mobile phones to the
audio system are available from an
authorized Mercedes-Benz Center.
®
Activating Bluetooth
X
Switch on the mobile phone (see mobile
phone operating instructions).
X
Enter the PIN (not necessary with some
mobile phones or network).
X
®
Activate Bluetooth connection on the
mobile phone (see mobile phone operating
instructions).
X
Press button on the audio control unit
h
to call up the telephone mode.
i On certain mobile phones, not only do you
have to activate the Bluetooth
but your own device must additionally be
made "visible" for other devices.
®
Each Bluetooth device has a Bluetooth
device name. It is recommended to give
your mobile phone a personal name, by
which you can clearly recognize your
mobile phone.
®
i If the Bluetooth function on the audio
system is disabled, the message
Bluetooth not activated in system
settings appears.
X
®
Activate Bluetooth connection on the
audio system ( Y page 166).
X
System Activate
ê £ £
Bluetooth.
You have activated or deactivated
®
Bluetooth . A checkmark appears when
®
Bluetooth is activated.
Registering a mobile phone
(authorizing)
When you use your mobile phone in
conjunction with the audio system for the first
time, you must register (authorize) it.
®
function
®