ITU-T/ ATIS Workshop “Next Generation Technology and Standardization” BIO Las Vegas, 19-20 March 2006 Ray P. Singh (Telcordia Technologies) Session: 5: Interconnection, Interworking and Evolution Title of Presentation: End-to-End Authentication Requirements for Next Generation Networks (NGNs) Ray is a senior consultant at Telcordia Technologies with 10 years of experience in the area of telecommunications network planning and design, network architectures, and signaling requirements and protocol development. More recently his current focus is in Next Generation Network/Voice over IP (NGN/VoIP) planning, architecture designs, security, and requirements and standards development. Over the past 10 years, Ray actively participated and contributed to the work in ATIS Packet Technologies and Systems Committee of Service Committee (PTSC), as well as Study Groups 11 & 13 in the Telecommunication Standardization Sector of the International Telecommunications Union (ITU-T).