title: Keep separate volumes for speaker and headset
body: <p>I'm currently developing a sip based application for voice and videocalls, and I have a very simple question whether it is possible to keep separate volume levels for headset and speaker, or in other words for example is the volume for headset is set at "9" and the volume for speaker is at "4", so is such a scenario possible ?</p>
  
  <p>Any help is greatly appreciated.</p>