Intercept outgoing call and end call in android

 4 Steps to do this


1. Download android-src.jar API and rference it in your Project.


2. Now create package com.android.internal.telephony (exact same name of package) in your paroject's src folder.

and create interface in this package as following :

package com.android.internal.telephony;

public interface ITelephony {


boolean endCall();


void answerRingingCall();


void silenceRinger();

}

3. Create BroadCastReceiver in your project's package com.mydomain.testoutgoingcalls (your choice for packagename)

package com.mydomain.testoutgoingcalls;

import java.lang.reflect.Method;

import android.content.BroadcastReceiver;
import android.content.Context;
import android.content.Intent;
import android.os.Bundle;
import android.telephony.TelephonyManager;
import android.widget.Toast;

import com.android.internal.telephony.ITelephony;
public class CallReceiver extends BroadcastReceiver {

@Override
public void onReceive(Context context, Intent intent) {
Bundle bundle = intent.getExtras();

if(null == bundle)
return;

String phonenumber = intent.getStringExtra(Intent.EXTRA_PHONE_NUMBER);


String info = "Detect Calls sample application\nOutgoing number: " + phonenumber;

Toast.makeText(context, info, Toast.LENGTH_LONG).show();



TelephonyManager tm = (TelephonyManager) context.getSystemService(Context.TELEPHONY_SERVICE);
try {
Class c = Class.forName(tm.getClass().getName());
Method m = c.getDeclaredMethod("getITelephony");
m.setAccessible(true);
com.android.internal.telephony.ITelephony telephonyService = (ITelephony) m.invoke(tm);

telephonyService.endCall();

} catch (Exception e) {
System.out.println("error on end call : "+e.getMessage());
e.printStackTrace();
}


}
}

4. Edit your AndroidManifest.xml file

<?xml version="1.0" encoding="utf-8"?>
<manifest xmlns:android="http://schemas.android.com/apk/res/android"
package="com.mydomain.testoutgoingcalls"
android:versionCode="1"
android:versionName="1.0">
<application android:icon="@drawable/ic_launcher" android:label="@string/app_name">
<activity android:name=".MyActivity"
android:label="@string/app_name">
<intent-filter>
<action android:name="android.intent.action.MAIN" />
<category android:name="android.intent.category.LAUNCHER" />
</intent-filter>
</activity>

<receiver android:name=".CallReceiver">
<intent-filter>
<action android:name="android.intent.action.NEW_OUTGOING_CALL"/>
<action android:name="android.intent.action.PHONE_STATE"/>
</intent-filter>
</receiver>
</application>
<uses-sdk android:minSdkVersion="3" />

<uses-permission android:name="android.permission.PROCESS_OUTGOING_CALLS"/>
<uses-permission android:name="android.permission.READ_PHONE_STATE"/>
<uses-permission android:name="android.permission.MODIFY_PHONE_STATE" />
<uses-permission android:name="android.permission.CALL_PHONE" />
<uses-permission android:name="android.permission.READ_PHONE_STATE" />
</manifest>

Now start debug and test it will work fine.