title: Is it possible to broadcast with WCF?
body: <p>As titled, is it possible?</p>
  
  <p>My concept is using WCF with duplex channel, each client application will <code>Login()</code> into the WCF and the WCF will stores the call back channel reference in the list (from <code>GetCallbackChannel</code>).</p>
  
  <p>Then when broadcasting it simply iterates through the callback channel list.</p>
  
  <p>But... is it possible to stores a call back channel reference and shares in different service context then broadcast it?</p>
  
  <p>I know it can be done with socket (I have no idea how lol), but I just really want know if is possible to do with WCF?</p>