title: Android open phone call application
body: <p>I just want to open phone call application of android device. I dont want to provide that application a phone number. Just want to open it.<br/> I am using phone application's package name to open it. Because I am able to open any application I want through that package name with the code below.<br/><br/><code>Intent launchIntent = getPackageManager().getLaunchIntentForPackage("com.android.contacts");
                  startActivity(launchIntent);</code><br/><br/></p>
  
  <p>I am not able to open <strong>Phone</strong> and <strong>Contacts</strong> application with the above code. What can be the problem?</p>