This video is referenced in several places, for example here references it
https://developer.apple.com/documentation/callkit/making_and_receiving_voip_calls_with_callkit
and Eskimo has referenced it in his posts. But its gone, there are other WWDC16 session videos but not this one (https://developer.apple.com/videos/wwdc2016)
Is it available anywhere else?
Also how can this code be run/tested for an incoming call (without using the build in simulator i.e. using a real incoming Voip call)? What tool/app etc. could be used to generate a call to the handset to see the code in action when answering a VoIP call?