Hi guys, Trying to build a DTMF test using flite TTS. So far I have this: session:setVariable("tts_engine", "flite") session:setVariable("tts_voice", "stm") digits = session:playAndGetDigits(2, 30, 3, 5000, "#", "say:Please enter some digits, followed by the hash key.", "say:Sorry, I didn't catch that. Please try again.", "\\d+") session:execute("speak", "flite|stm|" .. digits) I keep getting the following error and can't work out why: 2016-12-13 19:16:10.377932 [ERR] mod_lua.cpp:203 /usr/share/freeswitch/scripts/dtmf_test.lua:9: attempt to concatenate field '?' (a nil value) stack traceback: /usr/share/freeswitch/scripts/dtmf_test.lua:2: in main chunk It's mostly something stupid I'm doing, out of everything I'm good at lua isn't one of them! Does anyone have any ideas what I'm doing wrong? Kind regards, -- *Andrew Cassidy BSc (Hons) MBCS SSCA* Managing Director 03303 880 960 andrew@cassidyweb.co.uk <andrew@cassidywebservices.co.uk> www.cassidyweb.co.uk <http://www.cassidywebservices.co.uk>