Mercedes-Benz S-Class 2012 - Manual (Page 196)

Call disconnection while the vehicle is
in motion
A call may be disconnected if:
R
there is insufficient network coverage in
certain areas.
R you move from one transmitter/receiver
area (cell) into another and no channels are
free.
R you use a SIM card which is not compatible
with the network available.
R
you are using a mobile phone with
"Twincard" and the mobile phone with the
second SIM card is already logged into the
network.
Operating options
You can operate the telephone by:
R using the COMAND controller:
turn cVd.
slide XVY or ZVÆ.
press W.
R the 6 or ~ button on the telephone
keypad on the center console
R the 6 or ~ button on the
multifunction steering wheel
R using the Voice Control System (see the
separate Voice Control System operating
instructions)
Unless otherwise indicated, the descriptions
and illustrations in this section refer to
COMAND and the telephone keypad. This
also means that to carry out the functions
described here, you must always be in the
Telephone menu. The fastest way to access
the Telephone menu is to press the S
function button.
Function restrictions
You will not be able to use the telephone, will
no longer be able to use the telephone, or you
may have to wait before using it, in the
following situations:
R
when the mobile phone is switched off
R when the "Bluetooth ® " function is switched
off in COMAND
R when the "Bluetooth ® " function is switched
off on the mobile phone
R
if the mobile phone is not logged into a
mobile phone network
i The telephone automatically tries to log
on to a network. If no network is available,
you will 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.
R
if you remove the SmartKey from the
ignition lock during an active conversation
in hands-free mode, the conversation may
be continued for up to 30 minutes. After
that time, it will be interrupted.
You can prevent this interruption by switching
to "private call" ("private mode") on the
mobile phone before deactivating COMAND
(see mobile phone operating instructions).
If you wish to switch off COMAND during an
active conversation in hands-free mode, the
following message will appear:
You cannot
shut off COMAND until you have
finished your telephone call
911 emergency call
G WARNING
The 911 emergency call system is a public
service. Using it without due cause is a
criminal offense.
The following requirements must be fulfilled
for a
911 emergency call:
R
the mobile phone must be switched on.
R
a network must be available.
194
Telephone
COMAND