1. 在src下新建一個包：com.android.internal.telephony(和ITelephony.aidl 中 package 宣告的包名一樣)；
2. 然後從系統原始碼中把ITelephony.aidl檔案拷貝到 com.android.internal.telephony包下。（也可以先新建一個ITelephony.aidl， 然後再把內容拷貝進去（ITelephony.aidl檔案內容可以在http://www.netmite.com/android/mydroid/1.5/frameworks/base/telephony/java/com/android/internal/telephony/ITelephony.aidl

parcelable NeighboringCellInfo;

4.從私有方法中獲取ITelephony： 程式碼如下。

tManager = (TelephonyManager)
this.getSystemService(Context.TELEPHONY_SERVICE);
//初始化iTelephony
Class <TelephonyManager> c = TelephonyManager.class;
Method getITelephonyMethod = null;
try {
getITelephonyMethod = c.getDeclaredMethod("getITelephony", (Class[])null);
getITelephonyMethod.setAccessible(true);
} catch (SecurityException e) {
// TODO Auto-generated catch block
e.printStackTrace();
} catch (NoSuchMethodException e) {
// TODO Auto-generated catch block
e.printStackTrace();
}

try {
iTelephony = (ITelephony) getITelephonyMethod.invoke(tManager, (Object[])null);
} catch (IllegalArgumentException e) {
// TODO Auto-generated catch block
e.printStackTrace();
} catch (IllegalAccessException e) {
// TODO Auto-generated catch block
e.printStackTrace();
} catch (InvocationTargetException e) {
// TODO Auto-generated catch block
e.printStackTrace();
}

PhoneCallActivity .java

package com.geolo.pcp.android;
import java.lang.reflect.Method;
import com.android.internal.telephony.ITelephony;
import android.app.Activity;
import android.content.Context;
import android.media.AudioManager;
import android.os.Bundle;
import android.telephony.PhoneStateListener;
import android.telephony.ServiceState;
import android.telephony.SignalStrength;
import android.telephony.TelephonyManager;
import android.util.Log; 
public class PhoneCallActivity extends Activity{
 private PhoneCallListener mPhoneCallListener; 
 private TelephonyManager mTelephonyManager;
 //private PhoneStateListener mPhoneStateListener; 
 private AudioManager mAudioManager; 
 @Override
 protected void onCreate(Bundle savedInstanceState) {
  super.onCreate(savedInstanceState);
  mPhoneCallListener = new PhoneCallListener();
  mTelephonyManager = (TelephonyManager)getSystemService(Context.TELEPHONY_SERVICE);
  mAudioManager = (AudioManager) getSystemService(Context.AUDIO_SERVICE); 
  mTelephonyManager.listen(mPhoneCallListener, PhoneCallListener.LISTEN_CALL_STATE);
  //mTelephonyManager.listen(mPhoneCallListener, PhoneCallListener.LISTEN_SERVICE_STATE);
  //mTelephonyManager.listen(mPhoneCallListener, PhoneCallListener.LISTEN_DATA_CONNECTION_STATE);
 }
 /**
  * 利用JAVA反射機制呼叫ITelephony的endCall()結束通話。
  */
 private void endCall() {
  // 初始化iTelephony
  Class<TelephonyManager> c = TelephonyManager.class;
  Method getITelephonyMethod = null;
  try {
   // 獲取所有public/private/protected/預設
   // 方法的函式，如果只需要獲取public方法，則可以呼叫getMethod.
   getITelephonyMethod = c.getDeclaredMethod("getITelephony",(Class[]) null);
   // 將要執行的方法物件設定是否進行訪問檢查，也就是說對於public/private/protected/預設
   // 我們是否能夠訪問。值為 true 則指示反射的物件在使用時應該取消 Java 語言訪問檢查。值為 false
   // 則指示反射的物件應該實施 Java 語言訪問檢查。
   getITelephonyMethod.setAccessible(true);
   ITelephony iTelephony = (ITelephony) getITelephonyMethod.invoke(mTelephonyManager, (Object[]) null);
   iTelephony.endCall();
   Log.v(this.getClass().getName(), "endCall......");
  } catch (Exception e) {
   Log.e(this.getClass().getName(), "endCallError", e);
  } 
 }
 public class PhoneCallListener extends PhoneStateListener{
  @Override
  public void onCallStateChanged(int state, String incomingNumber) {
   mAudioManager.setRingerMode(AudioManager.RINGER_MODE_SILENT); 
   Log.v(this.getClass().getName(), "onCallStateChanged-state: " + state);
   Log.v(this.getClass().getName(), "onCallStateChanged-incomingNumber: " + incomingNumber);
   switch (state)  { 
   case TelephonyManager.CALL_STATE_IDLE: 
    mAudioManager.setRingerMode(AudioManager.RINGER_MODE_NORMAL); 
    break; 
   case TelephonyManager.CALL_STATE_OFFHOOK: 
    //CALL_STATE_OFFHOOK; 
    break; 
   case TelephonyManager.CALL_STATE_RINGING: 
    if ("123456".equals(incomingNumber)){ 
     //mTelephonyService.endCall(); 
     endCall();
    }else{ 
     mAudioManager.setRingerMode(AudioManager.RINGER_MODE_NORMAL); 
    } 
    break; 
   default: 
    break; 
   } 
   super.onCallStateChanged(state, incomingNumber);
  }
  @Override
  public void onDataConnectionStateChanged(int state) {
   Log.v(this.getClass().getName(), "onDataConnectionStateChanged-state: " + state);
   super.onDataConnectionStateChanged(state);
  }
  @Override
  public void onDataConnectionStateChanged(int state, int networkType) {
   Log.v(this.getClass().getName(), "onDataConnectionStateChanged-state: " + state);
   Log.v(this.getClass().getName(), "onDataConnectionStateChanged-networkType: " + networkType);
   super.onDataConnectionStateChanged(state, networkType);
  }
  @Override
  public void onServiceStateChanged(ServiceState serviceState) {
   Log.v(this.getClass().getName(), "onServiceStateChanged-ServiceState: " + serviceState);
   super.onServiceStateChanged(serviceState);
  }
  @Override
  public void onSignalStrengthChanged(int asu) {
   Log.v(this.getClass().getName(), "onSignalStrengthChanged-asu: " + asu);
   super.onSignalStrengthChanged(asu);
  }
  @Override
  public void onSignalStrengthsChanged(SignalStrength signalStrength) {
   Log.v(this.getClass().getName(), "onSignalStrengthsChanged-signalStrength: " + signalStrength);
   super.onSignalStrengthsChanged(signalStrength);
  }
 } 
}

<?xml version="1.0" encoding="utf-8"?>
<manifest xmlns:android="http://schemas.android.com/apk/res/android"
 package="com.geolo.pcp.android" android:versionCode="1"
 android:versionName="1.0">
 <application android:icon="@drawable/icon" android:label="@string/app_name">
  <activity android:name=".PhoneCallActivity" android:label="@string/app_name">
   <intent-filter>
    <action android:name="android.intent.action.MAIN" />
    <category android:name="android.intent.category.LAUNCHER" />
   </intent-filter>
  </activity>
 </application>
 <uses-permission android:name="android.permission.READ_PHONE_STATE" />
 <uses-permission android:name="android.permission.CALL_PHONE" />
 <uses-permission android:name="android.permission.MODIFY_PHONE_STATE" />
 <uses-permission android:name="android.permission.WAKE_LOCK" />
</manifest>