I am just letting you know that the Mobicents team is making the first steps to make Seam components implement telco application logic. Seam components can be subscribed to SIP events and can be scoped to a Sip Servlet Session just like you do with HTTP Sessions. We are looking into utilizing the BPM and conversation scopes too. You can read more about it here http://vladimirralev.blogspot.com/2008/11/jboss-seam-enhances-sip-servlets.html.
