<include> <language name="en" sound-path="$${base_dir}/sounds/en/us/callie" tts-engine="cepstral" tts-voice="callie"> <X-PRE-PROCESS cmd="include" data="demo/demo.xml"/> <!--voicemail_en_tts is purely implemented with tts, we need a files based implementation too --> <X-PRE-PROCESS cmd="include" data="vm/sounds.xml"/> </language> </include>