The Java Service Logic Execution environment (SLEE) is gaining popularity among telco operators - bringing to the domain of telco services what J2EE brings to the domain of enterprise applications. Mobicents is the first open source implementation of this standard that is 100% compliant. Mobicents is built on the JBoss Application Server platform. This session will describe the SLEE at an architectural level and outline its role as a middleware solution for building Service Delivery Platforms (SDP) for next generation IMS networks. In particular, issues such as isolation, concurrency, service deployment and failover will be discussed in the context of our SLEE implementation. Looking ahead, the introduction of advanced features and extensions such as runtime resource control will also be addressed. Finally, an end to end  working example of the developer's view of the SLEE programming model will be presented.

Ivelin is a member of the JBoss core team and serves as Director of Product Development. His responsibilities include overseeing the development process, resources and unified product roadmap. Ivelin is community leader for Java.net Communications. He is also member of the JSR 240 Expert Group – JAIN SLEE 1.1 and founder of the open source implementation Mobicents. Ivelin participates in the Eclipse initiative as member of the WTP Requirements Committee. In the open source community Ivelin has contributed to JBoss, Apache Cocoon, jXPath, GNU QEXO, XMLForm and FreeBuilder IDE.

Francesco Moggia  is a Ph.D. Student at the University of Genova, Genova, Italy. In 2003 he joined IRIS Srl on a research project funded by Marconi Communications in Genoa, studying the evolution of the access network of the Telco incumbent towards IP Telephony. Since December 2003 he has been a visiting Guest Researcher at NIST working on the Mobicents Open SLEE project, focusing on the security aspects of the SLEE Platform. His research interests include computer network architectures, in particular, network architecture and security for IP Telephony and distributed service platforms. He's the technical leader of the research unit of IRIS Srl (Italy) for the research projects on Service Delivery Platform in the Telco Netowrk.

Phelim O'Doherty is a product manager at BEA systems tasked with
defining the architecture and strategy of the WebLogic Communications Platform. He has over eight years experience architecting telecommunications systems and has network experience in Europe, North
America & Asia. He has core knowledge of key application server technologies for telecommunications including both SIP Servlet and JSLEE. He has been involved in many standards bodies covering areas such as SIP and AIN and is known as a pioneer of telecommunications standards
through the Java Community Process. He holds a BSC (HONS) in Computing and Information Systems.

M. Ranganathan is a computer scientist at the National Institute of Standards and Technology ( NIST ), in Gaithersburg, MD. His research interests include networking protocols, peer to peer systems and I.P. Telephony middleware. He is responsible for several successful open source projects in IP Telephony including NIST-SIP, the JAIN-SIP  (JSR-32) R.I.  Mr. Ranganathan is the technical lead for the Mobicents project. He is  the co-specification lead for JAIN-SIP  and is a member of the expert group for JAIN-SLEE 1.1 ( JSR 240). Mr. Ranganathan holds a  BTech (M.E.) from IIT Madras, an M.S. (M.E.), an M.S. (E.E.) from the University of Illinois and an M.S.  (C.S.) from the University of Maryland. Mr. Ranganathan has authored several technical papers over the years but lately he prefers to express himself in Java.