See also:

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 ...

Check Control
The conceptThe Check Control monitors vehicle functions and alerts you to any malfunctions in the systems monitored. Such a Check Control message includes indicator and warning lamps in the instru ...

Activation/deactivation
Press the button. ...