[Freeswitch-users] Terminate early media playback on answer

Hi, I am using a playback on early media to provide a welcome message and would like to terminate the playback on answer. I have tried application='set' data='execute_on_answer=break all' but this doesn't seem to do anything even though the log shows it being executed on answer. Currently if the far end answers quickly they get silence until the playback has finished and then they get through. Any ideas on how I can do this? Many thanks again Chris