Permanent notes remain on the screen for an indefinite time. The user cannot dismiss them. For example, Insert SIM card.
The API to use for the permanent note component is the Notes API. To use a permanent note with the default icon, text, sound, and duration, create an instance of the note class CAknStaticNoteDialog.
You can change the icon or text displayed in the note, use a different kind of sound, or change the note duration using the setter methods in the class CAknNoteDialog: SetIconL(), SetTextL(), SetTone(), and SetTimeout().