How to make a call for last outgoing casll from application

String dialNumber = CallLog.Calls.getLastOutgoingCall(getApplicationContext());

if (dialNumber != "") {

    dialNumber = "tel:"+dialNumber;

    Intent dial = new Intent();

    dial.setAction("android.intent.action.CALL");

    dial.setData(Uri.parse(dialNumber));

    dial.addFlags(Intent.FLAG_ACTIVITY_NEW_TASK | Intent.FLAG_ACTIVITY_CLEAR_TOP);

    startActivity(dial);

} else {

    Log.e(TAG, "no last outgoing call");

}