I have installed elastix in many servers. all of them after few month died. one crashed. one of them after a while when you dila it takes 10 minutes to ring! . one of them IVR went wrong and so on so far. on all i reinstalled the elastix again and again. is there any files that go worng or any point or any database or log that i have to or i can make it empty. is there any way after few month i return it to the time i installed, every thing renew just the configuration remain. any suggestion about that? as they are in different cities its not easy to go and reinstall.