ios15 程序被杀死时VOIP收不到，只有在活跃状态才能收到

初始化

PKPushRegistry * voipRegistry;

    if(@available(iOS 15.0,*)){//ios15要在用子队列创建voip

        voipRegistry = [[PKPushRegistry alloc] initWithQueue: self.voipQueue];

    } else {

        voipRegistry = [[PKPushRegistry alloc] initWithQueue: dispatch_get_main_queue()];

    }

收到消息

- (void)pushRegistry:(PKPushRegistry *)registry didReceiveIncomingPushWithPayload:(PKPushPayload *)payload forType:(PKPushType)type withCompletionHandler:(void(^)(void))completion API_AVAILABLE(macos(10.15), macCatalyst(13.0), ios(11.0), watchos(6.0), tvos(13.0)) {

    if(@available(iOS 15.0,*)){

        dispatch_sync(dispatch_get_main_queue(), ^{

//执行调起callkit相关

        }

    } else {

//执行调起callkit相关

    }

}