Setting up car telephony with a mobile phone via Bluetooth® SAP
Requirements:
Bluetooth® is activated on the mobile phone (see the manufacturer's operating instructions).
Bluetooth® is activated on the multimedia system More.
The mobile phone supports the Bluetooth® profile SAP (SIM Access Profile).
Multimedia system:
Select the 
device manager.
device manager. Select Connect new device.
Select a mobile phone with Bluetooth® profile SAP.
Connect the mobile phone with the multimedia system using Secure Simple Pairing More.
Enter the SIM card PIN and confirm.
If the mobile phone is connected as a car phone, calls cannot be made on the mobile phone, since its SIM card is being used by the vehicle.
Switching to Bluetooth® telephony
In the device manager, select the 
symbol in the line of the mobile phone.
device manager, select the symbol in the line of the mobile phone. Select Use as Bluetooth phone.
The mobile phone is no longer connected via Bluetooth® profile SAP but via the Bluetooth® HFP profile (Hands Free Profile).
Switching to car telephony via the SAP Bluetooth® profile
In the device manager, select the symbol in the line of the mobile phone.
device manager, select the symbol in the line of the mobile phone. Select Use as car phone.
The mobile phone is connected using the SAP Bluetooth® profile.
This option is only shown if the mobile phone supports the SAP Bluetooth® profile.