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Controls in detail
Audio system
Functional restrictions
You will not be able to use the telephone,
or you may have to wait a while, in the fol-
lowing situations:
ț If the telephone is switched off.
ț If the telephone is not connected via
the Bluetooth
®
interface to the audio
system.
ț The telephone must not be locked.
ț If the telephone has not yet logged into
the network.
The telephone 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.
ț If you switch off the audio system in the
middle of a call, e.g. by switching off
the ignition, that call will be cut off. You
can prevent this from happening as fol-
lows:
ț Switch the phone to “private mode”
before switching the audio system
off (see telephone operating in-
structions).
Activating the telephone
Prerequisites for the telephone
For making calls using the audio system
via the Bluetooth
®
interface, you will need
a Bluetooth
®
enabled telephone.
Before attempting to make or receive calls
via the Bluetooth
®
interface, check your
phone's hands-free profile. It must support
version 1.0 or higher (see telephone oper-
ating instructions).
i
Not all telephones on the market are suit-
able. Further information on suitable telephones
and on connecting Bluetooth
®
enabled tele-
phones to the audio system are available from an
authorized Mercedes-Benz Center.