title: Twilio: Hangup a call in an existing conference, ERROR 20404
body: <p>Following situation:</p>
  
  <ol>
  <li>Someone called my Twilio Number</li>
  <li>Twilio requested my url</li>
  <li>Caller gets into a conference (don't starts until a second person join)</li>
  <li>TwiML makes call to a Mobile</li>
  <li>The Moblie dont accept the call</li>
  </ol>
  
  <p>=> no second Person enters the conference so it wont stop and the caller is stuck there.</p>
  
  <p>My solution is to end the whole call if this happens, I already know where to place the endCall function so this is not my problem. The function looks like this (You'll find it in the twilio API too):</p>
  
  <pre><code>client.calls(accountSid).update({
      status: "completed"
  }, function(err, call) {
      if(err){
          console.log(err);
      }
  });
  </code></pre>
  
  <p>My programm logic is fine, I see that this function is called at the right place but I receive this Error:</p>
  
  <pre><code>{ status: 404,
    message: 'The requested resource /2010-04-01/Accounts/AC/Calls/AC.json was not found',
    code: 20404,
    moreInfo: 'https://www.twilio.com/docs/errors/20404' }
  </code></pre>
  
  <p>I already red whats at the moreInfo url but I disqualify
  the solutions there. Maybe you have an idea whats the problem with this.</p>