You can use your hands-free device with the iPhone via the Bluetooth connection.

In order for your car display to show the names of your Enreach Contact contacts when calls are made from the Enreach Contact environment, you must store them in the local phonebook, with both internal and external phone numbers. Contacts in the Enreach Contact app are not available here. If you do not do this, only the extension of the Enreach Contact contact (e.g. 437) is displayed. Then the local contacts must be synchronized with your car. In most cases, this happens automatically.