[Freeswitch-users] VAD Detection on Outbound Call

Is there a way either using the Dialplan or Lua script to detect when Voice Activity(VAD) is present on an outbound call? I am using the group_confirm_key/group_confirm_file variables to prompt the user after the outbound call is answered, but it would be nice to not start the prompt until after Voice Activity is detected on the line. - Duane