183 Glossary
Roaming
For this function, the telephone uses
the telephone network of a contract
partner. The ROAMING indicator in the
COMAND display indicates that a call is
being made using a contract partner.
Root directory
The uppermost directory on a storage
medium.
Scan rate (MP3)
Indicates the frequency at which volt-
age samples are taken during the con-
version of an analog signal into a digital
signal. The analog-to-digital converter
converts the samples into digital sig-
nals.
Service source
This includes the system navigation
(voice output during destination guid-
ance).
SIM
(Subscriber Identity Module)
Card provided by the GSM telephone
service provider. Necessary for acces-
sing a mobile communication network.
SMS
(Short Message Service)
With this function you can receive and
read short text messages (if SMS ser-
vice is provided by your provider).
Soft keys
Keys that activate different functions.
Function of key depends on the selec-
ted operating mode.
Tele Aid
(Telematic Alarm Identification on De-
mand)
The Tele Aid system consists of three
types of response: automatic and ma-
nual emergency, roadside assistance,
and information. Tele Aid is initially
activated by completing a subscriber
agreement and placing an acquain-
tance call. Refer also to the vehicle
operating instructions.
The Tele Aid system is operational pro-
vided that the vehicle’s battery is char-
ged, properly connected, not damaged,
and cellular and GPS coverage is avai-
lable.
