With the BMW Bluetooth interface.
Connecting a mobile phone to your vehicle via Bluetooth is the safest and most comfortable way to speak on the phone while on the road. This is why BMW was the first automobile manufacturer to introduce the Bluetooth communication standard for mobile phone integration as early as December 2002. The wireless connection enables drivers to operate their mobile phones via the multifunctional steering wheel, the iDrive Controller or voice control. The mobile phone's telephone book is synchronised with the on-board computer and can be accessed via the radio display or the on-board monitor.