I believe you're looking for `api_on_pre_answer` or `api_on_media` https://freeswitch.org/confluence/display/FREESWITCH/api_on_media -------------- next part -------------- An HTML attachment was scrubbed... URL: <http://lists.freeswitch.org/pipermail/freeswitch-users/attachments/20201119/49101c67/attachment.html>