// One way to use CCHUI API is to configure which notes it shows
   // and after that do normal enable through CCH
   iCch = CCch::NewL();
   
   // Allow connectivity notes to be shown when enabling service
   iCch->SetConnectivityDialogsAllowed( ETrue );
 
   // Get handle to cchui api
   iCchUi = &iCch->CchUiApi(); // iCchUi is pointer to MCchUi
 
   // Set observer to listen cchui events.
   iCchUi->AddObserverL( *this );  // parameter is MCchUiObserver
   
   // Configure CCHUI API to show all notes/dialogs except connecting note.
   // Also configure that only VoIP and IM subservices are allowed (notes are
   // shown only for those).
   RArray<MCchUiObserver::TCchUiDialogType> allowedNotes;
   RArray<MCchUiObserver::TCchUiDialogType> allowedSubServices;
   CleanupClosePushL( allowedNotes );
   CleanupClosePushL( allowedSubServices );
 
   allowedNotes.AppendL( MCchUiObserver::ECchUiDialogTypeAuthenticationFailed );
   allowedNotes.AppendL( MCchUiObserver::ECchUiDialogTypeNoConnectionDefined );
   allowedNotes.AppendL( MCchUiObserver::ECchUiDialogTypeNoConnectionAvailable );
   allowedNotes.AppendL( MCchUiObserver::ECchUiDialogTypeChangeConnection );
   allowedNotes.AppendL( MCchUiObserver::ECchUiDialogTypeDefectiveSettings );     
   
   allowedSubServices.AppendL( ECCHVoIPSub );
   allowedSubServices.AppendL( ECCHIMSub );
 
   iCchUi->ConfigureVisualizationL( 
       allowedNotes, allowedSubServices );
   
   CleanupStack::PopAndDestroy( &allowedNotes );
   
   CCchService* service = iCch->GetService( serviceId );
   service->Enable( ECCHUnknown );
 
 
 
 
   // Another way to use CCHUI API is to just show specific notes.
   iCch = CCch::NewL();
   
   // Get handle to cchui api
   iCchUi = &iCch->CchUiApi(); // iCchUi is pointer to MCchUi
 
   // Set observer to listen cchui events.
   iCchUi->AddObserverL( *this );  // parameter is MCchUiObserver
 
   // Show connecting dialog.
   iCchUi->ShowDialogL( 
       serviceId, 
       MCchUiObserver::ECchUiDialogTypeConnecting );
 
   // disable note by cancelling
   iCchUi->CancelNotes();
 
   // Remove observer
   iCchUi->RemoveObserver();
       

Since

S60 5.0