Mercedes-Benz C-Class 2010 Owners Manual - Manual (Page 175)

R
READY indicates that a call is possible.
R
NO SERVICE indicates that the mobile
network is not available.
Setting transmit and receive volume
i These settings should normally not be
changed as the factory settings are
matched to most mobile phones. Find out
about the optimum settings for your mobile
phone at an authorized Mercedes-Benz
Center.
i Changes may result in significant
impairments to the transmission quality.
These settings may not be changed during
an active phone call.
X % Q Tel Q Bluetooth Phones.
X Select a mobile phone from the list.
X Select Options Q Reception Volume or
Transmission Volume.
X Setting the volume: Slide Z V Æ or rotate
c V d the audio controller.
The volume bar moves up or down.
X Exiting menu: Press W or slide X V Y the
audio controller or press button k.
Emergency calls “911”
i The “911” emergency call system is a
public service. Using it without due cause
is a criminal offense.
i This function places a call to the local
“911” provider. It does not initiate a Tele
Aid call.
The following describes how to dial a “911”
emergency call using the audio system head
unit when a Mercedes-Benz specified mobile
phone is connected via the Bluetooth
®
interface to the audio system. Unless
otherwise specified, the descriptions refer to
the audio system head unit.
Consult the separate mobile phone operating
instructions that came with your mobile
phone for information on how to place a
“911” emergency call on the mobile phone.
The following conditions must be met for a
“911” emergency call via the audio system:
R
Mobile phone must be switched on.
R
The corresponding mobile
communications network must be
available.
i Emergency calls may not be possible with
all telephone networks or if certain network
services and/or telephone functions are
active. Check with your local service
providers and mobile phone instructions.
If you cannot make an emergency call, you
will have to initiate rescue measures yourself.
Placing a “911” emergency call using
audio control unit with the mobile
phone unlocked
X Press button % to switch to telephone
mode.
X Enter 911 using the number keypad on the
audio control unit.
X Press button 6.
or
X Press W for dialing to begin.
Connecting... appears in the audio
display while the mobile phone establishes
the connection.
X Wait until the emergency call center
answers, then describe the emergency.
i Depending on the phone type, if no SIM
card is inserted in a GSM mobile phone or
if there is no service on a CDMA mobile
phone,
NO SERVICE may appear in the
audio display. In that case, you only can
make an emergency call on the mobile
phone itself, without the use of the audio
control unit.
Audio system
173
Controls in detail
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