See also:

Deleting contacts
1. "My contacts" 2. Highlight the contact. 3. Open "Options". 4. "Delete contact" or "Delete all contacts" ...

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 ...

Initialization after a power failure
After a power failure, it is only possible to raise the roof, if necessary. Have the system initialized by your service center. ...