FreeSWITCH Version 1.2.0-rc2+git~20120625T160048Z~690cae5de1

I am trying to validate the input from read app using lua. Here is my dialplan:

  <extension name="account_code_setup" continue="true">

      <condition field="${use_acct_code}" expression="^YES$|^VALIDATE$">

          <action application="answer"/>

          <action application="read" data="2 15 'tone_stream://%(10000,0,350,440)' acctcode 30000 #"/>

          <action application="log" data="username: '${user_name}' acctcode: '${acctcode}'"/>

          <action application="set" data="sip_h_X-account-code=${acctcode}"/>

          <action inline="true" application="lua" data="validate_acctcode.lua  ${use_acct_code}  ${acctcode_list}  ${acctcode}"/>

      </condition>

      <condition field="${validate}" expression="^NO$">

        <anti-action application="respond" data="406 Invalid account code"/>

        <anti-action application="hangup"/>

      </condition>

    </extension>

I can assign ${acctcode} to sip_h_X-account-code. But it always has nil value when pass to lua.

What am I doing wrong?

Gary