The Universal Bluetooth™ Hands-free Mobile Telephone Interface integrates with the car's speaker system, Driver Information System (where present) and Touch-screen radio (where installed) allowing the driver to make and receive calls using the vehicle's built-in controls. The interface allows access to your mobile telephone's phone book and call lists for quick dialling. In cars with a touch-screen radio or touch-screen satellite navigation system installed, additional functionality like direct number dialling, phone book display, phone book search and speed dial can be performed.