Dear all, I did the below code, to callback a function when CHANNEL_EXECUTE_COMPLETE event comes. I executed the script for the 1st time and I got nothing. When I executed the script for the 2nd time, it ended with Sedmentation fault with core dumped. I was unable to attach the core dump file with this mail. Please specify how to send files to freeswitch user mailing list if need be. The freeswitch log is here: http://pastebin.freeswitch.org/11038 #!/usr/bin/perl use strict; use Data::Dumper; our $session; $session->answer(); my $events=new freeswitch::EventConsumer("CHANNEL_EXECUTE_COMPLETE"); $events->pop(1); $events->swig_e_callback_set("playvoice"); sub playvoice() { freeswitch::consoleLog("INFO","Call back function called\n"); } return 1;