Try this.

esl command = ""originate " + gateway + "+91" + phone_number + " " + 4441

<extension name="ivr_demo">

<condition field="destination_number" expression="^4441$">

<action application="wait_for_answer"/>
<action application="playback" data="/usr/local/freeswitch/recordings/file.wav"/>

<action application="sleep" data="1000"/>

</condition>

</extension>