Mercedes-Benz M-Class 2003 COMAND Manual - Manual (Page 70)

67
Telephone
Important notes
ț Close the windows to reduce outside
noise when you use hands-free opera-
tion.
ț A brief disconnection from the cellular
network is not a malfunction. A brief
disconnection can occur when the net-
work switches areas. The phone auto-
matically tries to sign on to a network
again.
ț If the message “ PLEASE ENTER
UNLOCK CODE” appears, enter the
unlock code to enable all telephone
functions.
Entering the unlock code (
୴ page 72).
In the following situations, it is not possible
or not yet possible to use the telephone:
ț The telephone is already unlocked but
is not registered or not yet registered in
the network.
The message “ NO SERVICE” ap-
pears. The telephone tries to register
into an existing network. If the network
is available, the telephone is ready for
use.
The above message also appears if the
network is no longer available due to
weak signals.
ț The message “ TELEPHONE NOT
ATTACHED” appears.
Please attach the telephone.
ț The message “ PHONE IS OFF...”
appears.
Please switch on the telephone.
It is not possible to make a call in the fol-
lowing situations. One of the following
messages appears:
ț “ SYSTEM BUSY”
Dialing has failed because system is
busy.
ț “ NO SERVICE”
Dialing has failed because a network
cannot be received.