didUpdatePushCredentials not get called

Question

I want to implement VoIP notifications in my iOS application, But the didUpdatePushCredentials method never got called, I can\'t get the device token.

Answer 1

If you're running a newer xcode (I'm on xcode 9) then VOIP is not in the Background section on the Capabilities tab. This will prevent didUpdatePushCredentials from being called!

The trick is you have to go in your plist, and in Required Background Modes you need to add App provides Voice over IP services.

I can't believe Apple has done this to us. I wasted an 8 hour work day looking for this simple fix.