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 using CAknNoteDialog::SetIconL(), CAknNoteDialog::SetTextL(), CAknNoteDialog::SetTone(), CAknNoteDialog::SetTimeout().