ok, it's working now.. GREAT!!!
did some disable and enable stuff + reboot and it works now..
Hope there will be in icon in status bar when app is open in future + notification on standby screen (just like for messages)

Seems like sound still works when i'm on silent and app is open.. don't mind that.. sound will warn me for message in stead of icon..
But it's better to close the app when you aren't chatting.