To all, Found the issue below: Removed the inline="true" from the xml dialplan and everything works as expected. <action inline="true" application="lua" data="ASKTestLua.lua $2"/> Now: <action application="lua" data="ASKTestLua.lua $2"/> Not sure why I put it there in the first place. Sorry about that. Andrew From: Andrew Keil Sent: Monday, 8 December 2014 1:18 PM To: 'freeswitch-users@lists.freeswitch.org' Subject: Re- LUA audio playback on Windows 64bit not working? To FreeSWITCH users, I am just starting to use Lua inside FreeSWITCH and I am having difficulty with playing back audio to the caller. It seems the Media is not ready or available even though I have answered the caller using session:answer(). It also seems that session:ready() always returns false after session:answer(). Very strange. Version: FreeSWITCH 1.5.12b(64bit) on Windows 8.1 Pro (installed from freeswitch.msi) - default installation except for conf\vars.xml (default_password changed) conf\dialplan\default\00_ASKTestLua.xml: <include> <!-- To test Lua script --> <extension name="ivr_demo"> <condition field="destination_number" expression="^(9101)$"> <!-- <action application="answer"/> --> <!-- <action application="sleep" data="1000"/> --> <!-- <action application="playback" data="ivr/ivr-welcome_to_freeswitch.wav"/> --> <action inline="true" application="lua" data="ASKTestLua.lua $2"/> </condition> </extension> </include> scripts\ASKTestLua.lua: -- Test Lua application -- answer the call session:answer(); session:sleep(1000); prompt = "ivr/ivr-welcome_to_freeswitch.wav"; freeswitch.consoleLog("INFO", string.format("prompt: %s\n", prompt)); session:execute("playback",prompt); --session:streamFile(prompt); freeswitch.consoleLog("INFO", "Prompt played\n") -- hangup session:hangup(); Logs inside FS_CLI: 2014-12-08 12:44:15.002800 [DEBUG] switch_core_session.c:2725 Application playback Requires media! pre_answering channel sofia/internal/1000@192.168.15.74<mailto:sofia/internal/1000@192.168.15.74> EXECUTE sofia/internal/1000@192.168.15.74<mailto:sofia/internal/1000@192.168.15.74> playback(ivr/ivr-welcome_to_freeswitch.wav) vs. conf\dialplan\default\00_ASKTestLua.xml: <include> <!-- To test Lua script --> <extension name="ivr_demo"> <condition field="destination_number" expression="^(9101)$"> <action application="answer"/> <action application="sleep" data="1000"/> <action application="playback" data="ivr/ivr-welcome_to_freeswitch.wav"/> <!-- <action inline="true" application="lua" data="ASKTestLua.lua $2"/> --> </condition> </extension> </include> Which works!! However this is not using Lua. I have tried using "session:streamFile(prompt);" instead of "session:execute("playback",prompt);" and this also does not work. I would appreciate any insight into why this is happening. Kind Regards, Andrew Keil