title: Detect relayed phone calls on iPod or iPad
body: <p>I can use CallKit to detect incoming calls. See here <a href="https://stackoverflow.com/a/42752727/1852207">https://stackoverflow.com/a/42752727/1852207</a></p>
  <p>This works fine on the iPhone with the actual telephony service.</p>
  <p>However if I have an iPod or iPad logged in to the same Apple ID they too can receive the call relayed by WiFi from the iPhone. The above method does not detect such calls on the iPad or iPod</p>
  <p>Is there any way to detect incoming relayed calls?</p>