Lauch Chooser for phone call

    private void call() {

        String PhoneNo ="*********";
        final Intent intent = new Intent();
        intent.setAction(Intent.ACTION_DIAL);
        intent.setData(Uri.fromParts("tel", PhoneNo, null));

        try{
            startActivity(Intent.createChooser(intent, "Appeler le lycée avec:"));
        }

        catch (android.content.ActivityNotFoundException ex){
            Toast.makeText(getApplicationContext(), "un problème est survenu", Toast.LENGTH_SHORT).show();
        }
    }