Using conditionals, loops, web calls, and regular expressions

This recipe helps us demonstrate the loops and other conditionals prevailing in Lua scripts. You will get also familiar with regular expressions and web calls.

Getting ready

Create a dialplan extension 12347 that will call our third Lua script. Edit the /usr/local/freeswitch/conf/dialplan/default/03_advanced.xml file:

<include>
  <extension name="Advanced Lua Script">
    <condition field="destination_number" expression="^(12347)$">
        <action application="answer"/>
        <action application="sleep" data="1000"/>
        <action application="playback" data="ivr/ivr-welcome_to_freeswitch.wav"/>
        <action application="sleep" data="500"/>
        <action application="lua" data="advanced.lua"/>
        <action application="playback" data="ivr/ivr-thank_you.wav"/>
        <action application="hangup"/>
    </condition>
  </extension>
</include>

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