I guess you've added only java  EE api to your project expecting a miracle comes and implements it and then you run client without any problem  ;)

There are different ways in different javaee application server to lookup and bind EJBs remotely from an stand-alone client application, and its better to use their own jndi  context factory, I've found most of them in this url: http://www.caucho.com/resin-2.1/ref/ejb.xtp

But there is a common way to connect all of them, (the way to connect to glassfish or Sun AS). You can find the required classes in appserv-rt.jar and javaee.jar in glassfish libraries.

Client:

package testapp;

import java.util.Properties;
import javax.ejb.EJB;
import javax.naming.InitialContext;
import javax.naming.NamingException;
import yoohoo.YoohooSessionRemote;

public class  Main {

public static  YourFacadeRemote lookupYourFacade() {
            Properties props = new Properties();
            props.setProperty("java.naming.factory.initial",
                    "com.sun.enterprise.naming.SerialInitContextFactory");
            props.setProperty("java.naming.factory.url.pkgs",
                    "com.sun.enterprise.naming");
            props.setProperty("java.naming.factory.state",
                    "com.sun.corba.ee.impl.presentation.rmi.JNDIStateFactoryImpl");
            props.setProperty("org.omg.CORBA.ORBInitialHost",
                    "localhost"); // server name
            props.setProperty("org.omg.CORBA.ORBInitialPort",
                    "3700"); // ORB port for glassfish is 3700 by default and for JBoss I 
                  // guess it's 1099

            InitialContext c = new InitialContext(props);
            return (YourFacadeRemote) c.lookup("YourFacade"); // Here is the most 
            // error prone part. Just pass the exact name of your EJB's JNDI name
            // DO NOT use "java:comp/env/ejb/YourFacade",
            // "java:comp/env/YourFacade" or something like that.
    }

    public  static void  main(String[] args) {
        YourFacadeRemote remote = lookupYourFacade();
        System.out.println(remote.sayHello());
    }

}

EJB Module:

ejb-jar.xml

  <enterprise-beans>
    <ejb>
      <ejb-name>YourFacadeBean</ejb-name>
      <jndi-name>YourFacade</jndi-name>
    </ejb>
  </enterprise-beans>


@Remote
public interface YourFacadeRemote {

    String sayHello();

}

@Local
public interface YourFacadeLocal {

    String sayHello();


}

@Stateless
public class YourFacadeBean implements YourFacadeRemote, YourFacadeLocal {

    public String sayHello() {
        return "Hello World!";
    }

}