The car kit phone supports Bluetooth wireless technology and
Bluetooth SIM access profile.
y
Bluetooth wireless technology
Bluetooth wireless technology is an international standard
for wireless short-range communication, allowing you to
establish a wireless radio connection between your car kit
phone and a compatible device supporting Bluetooth
wireless technology within a maximum range of 10 metres.
Such devices may include, for example, a compatible mobile
phone, laptop computer or wireless headset. The wireless
connection between the compatible devices established via
Bluetooth technology is free of charge for the user.
y
Bluetooth SIM Access Profile
Bluetooth SIM Access Profile is an industry standard which
allows a device, e.g. a car kit phone, which supports
Bluetooth wireless technology to access a SIM card in a
compatible mobile phone over a wireless link. The car kit
phone is then able to read and write data from/to the
remote SIM card inserted in the compatible mobile phone
and to log into the GSM network. A separate SIM card
inserted in the car kit phone is not required in this case.
You have switched on a compatible mobile phone supporting
the Bluetooth SIM Access Profile standard, a valid SIM card is
inserted in the compatible mobile phone, Bluetooth wireless
technology has been activated, the compatible mobile phone
has been paired with the car kit phone and you get into your
car.
How the GSM/Bluetooth wireless connection works
When the car ignition is switched on, a wireless connection is
established between the compatible mobile phone and the car
kit phone via Bluetooth SIM Access Profile. The car kit phone
requests the compatible mobile phone to log out of the GSM
wireless network and to deactivate the mobile phone
components required for the GSM connection. The car kit phone
then uses Bluetooth SIM Access Profile to access the SIM card
inserted in the compatible mobile phone (remote SIM card) and
utilises this card’s profile to log into the GSM network. Now the
car kit phone handles all incoming and outgoing calls and
messages while accessing the SIM card of the compatible
mobile phone.