[Freeswitch-users] Post Hangup string

Hello, I'm currently working on a FreeSWITCH box for a callcenter. One of the callcenter's requests was to rename each of the calls recordings based on the call's outcome, so each operator must tag each of it's call recording by hand. I planned to do this by ignoring both parties hangup requests and to catch a post end of conversation string from the voip client (in this case X-Lite) and fit this in the recording's file name by renaming it. I haven't done anything like it so far and wanted to ask if there is a standard approach for such post hangups implementations . Thanks, Bogdan Patrascoiu