Intent intent = new Intent(Intent.ACTION_CALL);
            Uri uri2 = Uri.parse("tel:4");
            intent.setData(uri2);
            intent.addFlags(Intent.FLAG_ACTIVITY_NEW_TASK);
            if (ActivityCompat.checkSelfPermission(ServicioCallerOverride.this, Manifest.permission.CALL_PHONE) == PackageManager.PERMISSION_GRANTED) {
                startActivity(intent);
            }
        }
    });