See also:

Programmable memory keys
General informationiDrive functions can be stored on the programmable memory keys and called up directly, e.g. radio stations, navigation destinations, phone numbers and entry points into the menu ...

Calls with multiple participants
General information You can switch between calls or connect two calls to a single conference call. These functions must be supported by the mobile phone and service provider. Accepting a call ...

Controls
1. Change entertainment sources 2. Change station/track 3. Programmable memory buttons 4. Volume, on/off 5. Change wave band ...