See also:

Opening the favorites
If an activated favorite is played back, the following message appears for approx. 20 seconds "Favorite alert!". "Favorites" Select the symbol while the message is shown. ...

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 ...

Setting the language
Press the adjustment button for 12‑13 seconds. Briefly press the adjustment button again to switch between English "E" and German "O". The setting is automatically saved ...