See also:

Units of measure
To set the respective units of measure, miles or km for the odometer and ℃ or ℉ for the external temperature. The setting is stored for the remote control currently in use. ...

Deleting all stored programs
Press both outer memory buttons 1 for approx. 20 seconds until the LED flashes rapidly. All stored programs are deleted. The programs cannot be deleted individually. ...

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 ...