you can download the user manual using the link below. This should help. It is on the right hand side of the webpage.
http://www2.bt.com/btPortal/application?origin=mb_product_atoz.jsp&pageid=mb_pns_catalogue&portletid=mb_pns_catalogue&wfevent=link.related.content&oSiteArea=mb.corp&oPJsp=mb_product_atoz.jsp&oPt=mb_pns_catalogue&oDocumentId=editorial/user_guide/synergy_3505_ug.xml&oOJsp=content.jsp&oPg=mb_pns_catalogue&oDocumentType=User+Guide&siteArea=mb.corp&PorS=products&contentitemid=editorial/user_guide/synergy_3505_ug.xml&contentType=User+Guide&event=bea.portal.framework.internal.portlet.event&com.bea.event.type=linkclick&oLName=link.searchresults&oLDesc=593540625
Abdul, November 2009