title: FreeSwitch iPhone app communication issue
body: <p>I have an app based on pjsip for doing some Sip calls. </p>
  
  <p>The app works fine with other SIP Switches/servers but with freeSwitch the app is not receiving calls in the background mode. </p>
  
  <p>With freeSwitch everything is fine when the app is active but when in background mode the app is not notified about the call. It has, probably, something to do with how freeSwitch notify the app about the new call (for iOS pjsip the notification should come on the TCP wrapped socket). </p>
  
  <p>Dose anybody know how i can configure the fresSwitch to send the notification on a specific port?</p>