Mercedes-Benz Comand Operator's Manual page 99

Telephone*
Important notes
Please read the chapter "Telephone"
first before attempting to operate your
telephone.
Please also read the important notes in
the telephone and Voice control sys-
tem* operating manuals.
Always drive with extreme caution
when you operate the telephone
hands-free.
For safety reasons, you should not use
the mobile telephone handset to make
a call while driving the vehicle.
If the signal strength is very weak (dis-
play in the symbol bar of all menus):
Wait until reception improves before
making a call.
Close the windows and reduce all out-
side noise as much as possible when
you use hands-free operation.
90
Also make sure that the air vents are
not pointed in the direction of the
microphones located in the overhead
control panel near the rear view mirror.
Adjust air vents and/or reduce blower
speed if necessary.
A brief disconnection from the cellular
network is not a malfunction, as this
can occur when the network switches
areas. The phone will automatically try
to sign on to a network again.
If the message
Enter Lock Code
appears, enter the unlock
for Cell
code to enable all telephone functions
( page 92). If you do not do so, only
the emergency call (911) is available.
GSM mobile phone
If the message
Enter PIN:
mobile phone appears, enter the PIN-
code to enable the telephone functions
( page 92). If you do not do so, only
the emergency (911) call is available on
the mobile phone.
In the following situations, it is not possible
or not yet possible to use the telephone:
The telephone is already unlocked but
is not or not yet registered in the net-
work.
The message no Serv.
status bar. The telephone will try to re-
gister into an existing network. If the
network is available, the telephone will
be ready for use.
The above message also appears
if the network is no longer available
due to weak signals
if you try to make a call (message
Service Unavailable
for 8 seconds)
on the
appears in the
appears