freeswitch/conf/directory/default/1004.xml

<include>
  <user id="1004" mailbox="1004">
    <params>
      <param name="password" value="1234"/>
      <param name="vm-password" value="1004"/>
    </params>
    <variables>
      <variable name="accountcode" value="1004"/>
      <variable name="user_context" value="default"/>
      <variable name="effective_caller_id_name" value="Extension 1004"/>
      <variable name="effective_caller_id_number" value="1004"/>
    </variables>
  </user>
</include>