Please look at the url for description. http://www.jboss.com/index.html?module=bb&op=viewtopic&t=116665

First ejb:

@WebService(name="UserAccountServiceEndPoint",
targetNamespace="namespace1", serviceName="UserAccountService1.0")
@SOAPBinding(style=SOAPBinding.Style.DOCUMENT,use=SOAPBinding.Use.LITERAL)
@Stateless
@WebContext(transportGuarantee="NONE",contextRoot="/svc-useracctv1.0",urlPattern="/UserAccountService1.0")

public class UserAccountService implements IUserAccountService
{

@WebMethod
@TransactionAttribute(javax.ejb.TransactionAttributeType.SUPPORTS)
public boolean authenticate(@WebParam(name="username") String aUsername)

{ boolean ret; ......... return ret; }

}

interface for 1st ejb:

@Remote
public interface IUserAccountService
{
public boolean authenticate(String aUsername);
}

second ejb:

@WebService(name="UserAccountServiceExtEndPoint",
targetNamespace="namespaceExt", serviceName="UserAccountServiceExt1.0")
@SOAPBinding(style=SOAPBinding.Style.DOCUMENT,use=SOAPBinding.Use.LITERAL)
@Stateless
@WebContext(transportGuarantee="NONE",contextRoot="/svc-useracctv1.0",urlPattern="/UserAccountServiceExt1.0")

public class UserAccountServiceExt implements IUserAccountServiceExt
{


@WebMethod
@TransactionAttribute(javax.ejb.TransactionAttributeType.SUPPORTS)
public boolean authenticate(@WebParam(name="username") String aUsername, @WebParam(name="password") String password)
{ boolean ret; ......... return ret; }

}

interface for 2nd ejb:

@Remote
public interface IUserAccountServiceExt
{
public boolean authenticate(String aUsername, String aPassword);
}