Sorry for the late reply. Thanks :-) I've got another question. In the sip app xsd http://www.jcp.org/xml/ns/sipservlet/sip-app_1_1.xsd, there is the servlet-selection element and it's type is servlet-selectionType which is a choice between main-servlet and servlet-mapping elements. So I was wondering if in my deployment descriptor it should be <servlet-selection> | <main-servlet> | </main-servlet> | </servlet-selection> or just | <main-servlet> | </main-servlet> ? Thanks in advance Jean View the original post : http://www.jboss.com/index.html?module=bb&op=viewtopic&p=4205164#... Reply to the post : http://www.jboss.com/index.html?module=bb&op=posting&mode=reply&a...