Pushkit voip push notifications are not being received on iOS8.0.2

I implemented new pushkit voip push notifications and until now it has been working properly in all iOS8 devices I tested except one. I ve got an iPhone iOS 8.0.2 which is not receiving any voip push. It registers correctly as I get the pushRegistry:didUpdatePushCredentials: forType: delegate called I tested previous remote pushes (registerForRemoteNotifications) with success but none of sent voip push are received.

So my questions are:

*Anyone has experienced same behavior for pushkit voip push notifications?

*Could it be something related with iOS version (iOS 8.0.2)?

*Could anyone having this version (iOS 8.0.2), implementpushkit voip push and try to receive a voip push notification in order to discard version problem?

If you need to implement pushkit voip push notifications you can check my answer on stackoverflow question