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Audio system
170
X
Placing a second call: Place a new call by
entering telephone number manually.
X
Press button s.
You are connected to the second caller; the
first caller is kept on hold.
X
Terminating a call: Press button t.
The current call is terminated. The
connection to the caller previously kept on
hold is also interrupted; however,
reconnection is indicated by an acoustic
signal.
X
Combining two calls: Press button s.
The calls are combined into one call.
X
Terminating a combined call: Press
button t.
The connection to both callers is
terminated.
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 inserted in the mobile phone cradle.
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.
If you cannot make an emergency call, you
will have to initiate rescue measures yourself.
GSM network phones
Placing a “911” emergency call using
audio head unit with the mobile phone
locked
X
Press button h to switch to telephone
operation.
PIN? appears in the audio display.
X
Enter 911 using the number keypad on the
audio head unit.
X
Press OK soft key or button s for dialing
to begin.
DIALING appears in the audio display while
the mobile phone establishes the
connection.
X
Wait until the emergency call center
answers, then describe the emergency.
Controls in detail