[Freeswitch-users] Transfer external caller to internally created dynamic nb_conference

Hi All, I am using nb_conferences in the default xml internally in our office location for dynamic conferences with no problem. I would like, if possible to be able to transfer an outside caller to the dynamically created conference based on the digits he enters ( like an IVR menu) but i'm a little shaky on the correct syntax. Could someone advise? I've tried the (seemingly) logical "transfer $1 XML default" but it doesn't work.Specifically i'm looking for what to put in the menu-exec-app bit of my IVR menu: <entry digits="/^30[2-9][0-9]$/" action="menu-exec-app" param="*<syntax for correct transfer to nb_conferences>*"/> Thanks Cody