怎么远程调用EJB，救命呀！！！

还有我的配置文件没有改，我不知道怎么改？？
<?xml version="1.0" encoding="UTF-8"?><!DOCTYPE ejb-jar PUBLIC '-//Sun Microsystems, Inc.//DTD Enterprise JavaBeans 2.0//EN' 'http://java.sun.com/dtd/ejb-jar_2_0.dtd'><ejb-jar>
  <description>Hello.jar</description>
  <display-name>Hello.jar</display-name>
  <enterprise-beans>
    <session>
      <description></description>
      <display-name>HelloEJB</display-name>
      <ejb-name>HelloEJB</ejb-name>
      <home>HelloHome</home>
      <remote>Hello</remote>
      <ejb-class>HelloEJB</ejb-class>
      <session-type>Stateless</session-type>
      <transaction-type>Container</transaction-type>
      <ejb-ref>
<description></description>
<ejb-ref-name>HelloClient</ejb-ref-name>
<ejb-ref-type>Session</ejb-ref-type>
<home>HelloHome</home>
<remote>Hello</remote>
<ejb-link>Hello.jar#HelloEJB</ejb-link>
      </ejb-ref>
    </session>
  </enterprise-beans>
  <assembly-descriptor/>
</ejb-jar>