Detect if an outgoing call has been answered

Once `ACTION_NEW_OUTGOING_CALL` has been broadcasted, I need to capture the following event of the other party answer. Could you advice on how to achieve that please? I know it is possible as the Android dialer app changes the green Android icon to the person's photo exactly when they pick up. UPDATED: I've had a look at the source of the app on Android handling the outgoing calls. I noticed the following method in `ContactsUtils`: ``` /** * Kick off an intent to initiate a call. */ public static void initiateCall(Context context, CharSequence phoneNumber) { Intent intent = new Intent(Intent.ACTION_CALL_PRIVILEGED, Uri.fromParts("tel", phoneNumber.toString(), null)); context.startActivity(intent); } ``` I guess my answer is in the activity listening for `Intent.ACTION_CALL_PRIVILEGED`. So to rephrase my question: Does anyone know which activity handles `Intent.ACTION_CALL_PRIVILEGED`?