Ok, Denys , I understand you have an "Master - Slave" situation. So ,you must move the call back when Master server come back. I'm sorry ,no help for u ,but ,maybe ,use an " master - master - master -...." architecture is the fastest way to resolve the problem. :-)) . The key of your question is "auto-clear-sql" option not functioning normally . plz double check your config ,and make sure , all servers have same option. Raymond 在 2017-06-06 01:50:18，"Denys Pozniak" <denys.pozniak@crazycall.com> 写道： Yes, correct. But when you restart FS on slave, it will erase database. And option auto-clear-sql=false not working for me. On Jun 5, 2017 6:32 PM, "Michael Jerris" <mike@jerris.com> wrote: recovered calls will get new entries in the table.