title: Changing ringer volume during ringing
body: <p>I'd like to change the ringer volume during ringing. Code below sets it during ringing (it is changed in system settings) but it doesn't come to effect with actual ringing (only the next ring call will use new value). Can I force this changes to make them effect Immediately?</p>
  
  <pre><code>AudioManager audio = (AudioManager) context.getSystemService(Context.AUDIO_SERVICE);    
  audio.setStreamVolume(AudioManager.STREAM_RING, volume, AudioManager.FLAG_ALLOW_RINGER_MODES | AudioManager.FLAG_PLAY_SOUND);
  </code></pre>