There’s a parameter for mod_conference named “perpetual-sound” that looks like it would do the trick.

It’s about 1/3 of the way down

https://freeswitch.org/confluence/display/FREESWITCH/mod_conference

PLEASE check further for any changes that might have been made in the latest FreeSWITCH as the conference module has undergone substantial changes and perpetual-sound might have been one of them.

Bote

From: Danny Gershman
Sent: Wednesday, 22 July, 2015 17:09
Subject: [Freeswitch-users] Endless playback in conference

I'm trying to do an endless playback of an mp3 file in a conference.   I have a couple of ideas, but none seem really solid.

1) Pass a variable on play and monitor from mod_event_socket and play again if not forcibly terminated.  

2) Load up local_stream dynamically from an xmlhttp server, and then restart the local stream service, however will interrupt MOH for other users.

Any other ideas?  Is there a way to do looping for "api" through mod_event_socket?  I know you can with "sendmsg"

--Danny Gershman