title: Make outgoing call with CallKit
body: <p>I'm actually on swift 2.3.
  Inbound Call works great with CallKit. But OutGoing Call ....</p>
  
  <p>I saw the SpeakerBox project, I do the same things.
  But it doesn't work.</p>
  
  <p>To start my call, I used</p>
  
  <pre><code>let handle = CXHandle(type: .PhoneNumber, value: "TOTO")
  let startCallAction = CXStartCallAction(callUUID: uuid, handle: handle)
  startCallAction.video = video
  let transaction = CXTransaction()
  transaction.addAction(startCallAction)
  requestTransaction(transaction)
  </code></pre>
  
  <p>After, in SpeakerBox Project, this function is called : </p>
  
  <pre><code>func provider(provider: CXProvider, perform action: CXStartCallAction)
  </code></pre>
  
  <p>But not in my project. Then, when i hangup, i see : "Call failed".</p>
  
  <p>Do you have an idea ?</p>