I see the freeswitch have socket mod and they have function:
save_history (mod_command)
Usage: fsctl save_history
Write out the command history in anticipation of executing a configuration that might crash FS. This is useful when debugging a new module or script to allow other developers to see what commands were executed before the crash.
But i dont know where the history save and after crash i should to to where for tracking the issued.
Please help.