Return to application after call ends

Possible duplicate:
How to make a phone call in android and return to my activity when the call is completed?

The call begins with the application through startActivity(new Intent(Intent.ACTION_CALL, Uri.parse("tel:" + phNo)));. Upon completion of the call, I will not return to the application, but to the desktop of the phone.

What am I doing wrong? Is it possible to return to the application that initiated the call? I'm not sure if this is allowed in Android.

EDIT: Added Code

@Override
protected void onListItemClick(ListView l, View v, int position, long id) {
    super.onListItemClick(l, v, position, id);

switch ((int) id) {
    case 0:
        try {
            TextView txtCallDisp = (TextView) findViewById(R.id.itmDdd);
            startActivity(new Intent(Intent.ACTION_CALL, Uri.parse("tel:" + phNo)));
        } catch (NullPointerException e) {
            e.printStackTrace();
        } catch (Exception ee) {
            ee.printStackTrace();
        }
        break;
    //... other switch statements