import android.app.Service;
import android.content.BroadcastReceiver;
import android.content.Context;
import android.content.Intent;
import android.telephony.TelephonyManager;
import android.util.Log;
public class PhoneStateBroadCastReceiver extends BroadcastReceiver
{
 private static final String TAG = "PhoneStateBroadCastReceiver";
 private static boolean mIncomingFlag = false;
 private static String mIncomingNumber = null;
 @Override
 public void onReceive(Context context, Intent intent)
 {
 // 如果是撥打電話
 if (intent.getAction().equals(Intent.ACTION_NEW_OUTGOING_CALL))
 {
  mIncomingFlag = false;
  String phoneNumber = intent.getStringExtra(Intent.EXTRA_PHONE_NUMBER);
  Log.i(TAG, "call OUT:" + phoneNumber);
 } else
 {
  // 如果是來電
  TelephonyManager tManager =
  (TelephonyManager) context.getSystemService(Service.TELEPHONY_SERVICE);
  switch (tManager.getCallState())
  {
  case TelephonyManager.CALL_STATE_RINGING:
  mIncomingNumber = intent.getStringExtra("incoming_number");
  Log.i(TAG, "RINGING :" + mIncomingNumber);
  break;
  case TelephonyManager.CALL_STATE_OFFHOOK:
  if (mIncomingFlag)
  {
   Log.i(TAG, "incoming ACCEPT :" + mIncomingNumber);
  }
  break;
  case TelephonyManager.CALL_STATE_IDLE:
  if (mIncomingFlag)
  {
   Log.i(TAG, "incoming IDLE");
  }
  break;
  }
 }
 }
}

<receiver android:name=".broadcase.PhoneStateBroadCastReceiver">
   <intent-filter>
    <action android:name="android.intent.action.PHONE_STATE"/>
    <action android:name="android.intent.action.NEW_OUTGOING_CALL" />
   </intent-filter>
 </receiver>
<uses-permission android:name="android.permission.READ_PHONE_STATE" />
<uses-permission android:name="android.permission.PROCESS_OUTGOING_CALLS" />