Okay, after fidling around a LOT i found out how to get the internet through my nokia 6021 phone.
Go to your mobistar store and ask them to get the gprs service on your account.
Get a bluetooth dongle or connection to connect to your phone.
Now in the dial up connection bluetooth setting select your phone and insert these values :
numer to dial (aboneenummer) *99#
Now in the dialiup connection in network connections properties you should have a connection with your cellphone as modem dialing *99#.
The username is mobistar and there is no password.
This should be your standard dialup connection for your frontend.
Car: volvo S70
Acer travelmate (600 mhz)
Motorized indash touchscreen tft
frontend: Centrafuse XLE
Holux 213 gps, USR usb wifi (both hidden inside seat)
custom shutdown and powerup of laptop with ignition.
Nokia 6021 phone for gprs and bluetooth.