Asterisk needs to be taught how to play mp3 format. Do the following: wget -nd http://downloads.asterisk.org/pub/telephony/asterisk/old-releases/asterisk-a ddons-1.4.13.tar.gz tar xvzf asterisk-addons-1.4.13.tar.gz cd asterisk-addons-1.4.13 ./configure make make install restart asterisk an you can start using mp3 format. However format_mp3 can cause Asterisk to crash on certain mp3 files (notably 8k files made with lame) due to bugs in mpglib. If you must use this module, use it only with mp3's you know will work with it. This needs to be done every time asterisk is compiled and reinstalled. From: app_rpt-users-bounces@ohnosec.org [mailto:app_rpt-users-bounces@ohnosec.org] On Behalf Of Bob Sent: Tuesday, May 27, 2014 12:56 AM To: app_rpt-users@ohnosec.org Subject: [App_rpt-users] Playing mp3 files in app_rpt? Is it possible to play mp3 formatted messages over the radio using the schedule stanza in rpt.conf? If so, what is required? Thanks, Bob kk6ecm