title: Call control in Teams tab
body: <p>I've seen some screenshots suggesting that it is possible to accept / hold / reject / hangup a call from within a tab in the Teams client. However, i cannot find any reference about such capabilities. I thought of deeplinks or the javascript client SDK, but either I am not looking good enough, or it just isn't there.</p>
  <p>Does anyone know if and if so, how this is possible?</p>