Thanks for your response, clarifying the reason the app is killed is very helpful in this case. I think everything is clear to me at this point. I just want to clarify one thing about my report: the "incoming call bye" and "incoming call answered" pushes are not PushKit notifications, they are the usual background notifications with the content-available flag set to 1. This is why they were the initial suspects. Let me know if you advise against using these background pushes in this case, even if they aren’t to blame.